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I have a GTab runn Vegan 5.1 and it runs great. The one issue that I have is that my Wifi gets disabled each night when it goes to sleep. When I say "disabled" I do not mean this it disconnect, but rather that something is actually putting it into a "Disabled" state and I must select the connection and choose to enable it.
Does anyone have any thoughts on what could be doing this? I have dug through every setting I can think of and also looked at any apps that might be doing this. I even went so far as to remove all my battery saving apps, but no dice.
Any suggestions?
kmclaren said:
I have a GTab runn Vegan 5.1 and it runs great. The one issue that I have is that my Wifi gets disabled each night when it goes to sleep. When I say "disabled" I do not mean this it disconnect, but rather that something is actually putting it into a "Disabled" state and I must select the connection and choose to enable it.
Does anyone have any thoughts on what could be doing this? I have dug through every setting I can think of and also looked at any apps that might be doing this. I even went so far as to remove all my battery saving apps, but no dice.
Any suggestions?
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Click to collapse
Settings - Wireless - Wireless Settings - (Press Soft Menu Button, you will see Scan and Advanced buttons popup) - Advanced - Wifi Sleep Policy - Never
Still getting Wifi disabled...
MasterColdSoul said:
Settings - Wireless - Wireless Settings - (Press Soft Menu Button, you will see Scan and Advanced buttons popup) - Advanced - Wifi Sleep Policy - Never
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Click to collapse
Have the sleep policy set at never and this does not change anything. From what I understand this setting will disconnect wifi when the device goes to sleep. In my case the connection is not disconnected but rather completely disabled. So it seems that there is some other thing disabling the connection.
So, to give a bit more info here, I have installed wifi keep alive to try and save the connection. This keeps the wifi from being disabled when it is plugged in, but it still gets disabled when it sleeps and is also unplugged. (I.e. on battery and sleeping)
So, I am starting to think that the setting that fixes the problem while pluggedin is settings / applications / development / stay awake. I have this turned on and it seems that with stay awake and the wifi keep alive I am good when plugged in.
So, does anyone have thoughts for a similar setting when on battery power?
I can't help to much with battery power since I almost always have mine plugged in.
It's odd that not helping you, once I made that chance I stopped having my Wifi turn itself off (not sleep, off, and the tablet would need to be reset a lot).
Sorry that wasn't much help.
Having this problem as well. Anyone know how to fix?
If you notice other weird stuff happening in the future you may need to repartition your internal memory. Mine started with similar flubs and progressed to never remembering logins online. I had to login to xda every time I turned my device back on. Keep this in mind, about 30% of people need to reformat.
Sent from my Chromatic Magic using XDA Premium App
"WiFi stay alive" will help you!
Mantara said:
If you notice other weird stuff happening in the future you may need to repartition your internal memory. Mine started with similar flubs and progressed to never remembering logins online. I had to login to xda every time I turned my device back on. Keep this in mind, about 30% of people need to reformat.
Sent from my Chromatic Magic using XDA Premium App
Click to expand...
Click to collapse
can you give some info as to how one would go about doing this?
For what its worth, might help to set a fixed IP address. I often got a problem with Wifi not being able to reconnect because it got stuck on "getting an IP address" and failed to do so. I seem to remember it disabled the connexion to that AP after too many tries on my Nexus One.
On my g tablet, I was having what seemed to be the same problem, so I did the same thing and it seems stable since. Granted I didn't toy with it as much as I did on the N1, but I wouldn't be supprised if it were a general Android problem.
Anyways, its free to try.
The wireless uses a lot of power. When the tablet "sleeps", it should go into a power saving mode. Disabling the wireless is a feature, not a bug.
Either way how can I keep the wifi signal on so when i wake my g tab up the wifi is ready to go and does not have to reconnect?
anyone have anything to help with this?
I am not sure, but it seems to me that downloaded apps can play with wifi this way, as long as they have rights to "access internet, modify and bla-bla-bla".
I am having same problem after sleep. And it was not present from the beginning. It may starts after I upload some app. I will play with this after coming back home.
yes please let us know thank you!
wasserkapf said:
The wireless uses a lot of power. When the tablet "sleeps", it should go into a power saving mode. Disabling the wireless is a feature, not a bug.
Click to expand...
Click to collapse
When my tablet is plugged in and it goes to sleep, the Wifi also disconnects, so I don't think this is a feature any more than the screen angle issue is a "privacy feature." I've never had an Android device that powered down connectivity when the screen goes off, that totally negates the notification features. You basically have a comatose tablet after a few minutes of the screen being off.
I don't think the Xoom or Galaxy Tab have this problem, so there's definitely an issue. Sadly, I might be sending mine back to TigerDirect as faulty because of this.
I have this problem too. As others have said, the problem isnt that the wifi turns off when the tablet sleeps. The problem is the last connected access point gets disabled so when you wake, you have to go into settings and tell it to connect again.
In my case, it happens most of the time, but not always. My Android phone doesnt have this problem.
I did a factory reset, then used nvFlash to restore, and then did a fresh install of Vegan (thought it did the same on every other 2.2 ROM I tried). I didn't install any apps, and the problem still occurs. Tried using Wifi Fixer, and the problem still occurs (though on the bright side, it does reconnect about 10 seconds or so after waking).
I'm out of ideas. I hate to send this thing back because it's the most fun piece of tech I've had in years, but a comatose Android device is a dealbreaker Going to try a GB ROM, and then I give up.
I've got the same kind of issue. I lose my PSA key in my wireless settings every time and have to re-enter it.
I installed the Vegan GB ROM (along with pershoot's kernel), and the wifi stays on if you choose "Never" for wifi sleep (you have to hit the menu button and choose "Advanced" when you're in the wifi settings). Only problem is, the GB ROMs, while zippy, are a little raw right now, and my Launcher Pro GMail widget doesn't work
I'm going to try one of the 2.2 ROMs again today along with pershoot's Froyo kernel to see if it makes a difference.
Ok, YMMV, but I am using Calkukin's ROM with pershoot's kernel (was using Clemsyn's before), with wifi set to never sleep, and my wifi doesn't sleep any more. I left my phone and tab here at work while I went out for lunch (felt naked ...), and came back about 45 mins later, woke the tab, and wifi was still connected, without that "looks connected, oh the icon is now disconnected, oh it's back again!" bit.
I still receive notifications and email, and widgets update. Guess I'm keeping it
Figured a thread would be helpful until issue is fixed in next release.
I had read people were having issues where wifi would be intermittent and very difficult to reconnect to. I've found this method which works for me every single time, no need to reboot, plug in to charge, or wait for long periods of time.
when wifi cuts out:
1. first thing you should do is pull the notifications menu down disconnect WiFi(must be disconnect from notification wifi toggle). **If you removed it within cyanogenmod settings, please put it back, this is what makes this process work for me*
2. Go into Settings>Wireless&Networks>WifiSettings: Now turn on WiFi (things will get a little slow and choppy, just be patient for a couple seconds. (if it asks you to Force Close or Wait, i'd select Wait cuz it won't take long. If you FC, no biggie, you'll just start over)
3. Tap 'n' Hold on the remembered network(s) and forget them.***IF THE SCREEN IS NOT REGISTERING YOUR TOUCH RIGHT AWAY, KEEP DOING IT, IT WILL EVENTUALLY GET IT****
4. USING THE NOTIFICATIONS BAR TOGGLE**, Turn off WiFi. You can back out of wifi settings and go back in after this IF you want, I did not find it necessary tho.
5. Now, turn on Wifi from WITHIN WiFiSettings, wait for networks to be scanned, select your network, enter password... and ... BOOMSHAKALAKA! You should be back on!
***THE TRICK HERE IS UTILIZING THE WIFI TOGGLE IN THE NOTIFICATIONS BAR TO POWER OFF WIFI. IT SEEMS WHEN TURNING OFF WIFI ANY OTHER WAY, THE TOGGLE REMAINS IN THE -ON- POSITION AND CAUSES SOME SERIOUS CONFUSION***
Also, i recommend making sure your wifi sleep policy to be set to never. Achieve this from settings>wifisettings>hitMENU>Advanced>sleepPolicy - NEVER
Please let me know if this works for you... it should, unless i mistyped something in the instructions.
it works for me by just turning it off from the notification widget and then turning it back on again
Varemenos said:
it works for me by just turning it off from the notification widget and then turning it back on again
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Click to collapse
Good to hear... i wish it were that easy for me tho seems that the problem for me is the inability to reconnect easily to a remembered network.
Thanks for the help but its also been posted couple hundred times include the common issues and fixes thread in the general section
Sent from my CM7 HP Touchpad
itsallsubliminal said:
Good to hear... i wish it were that easy for me tho seems that the problem for me is the inability to reconnect easily to a remembered network.
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Click to collapse
yea. thats my problem too. i do all the steps above but i dont use the toggle button, its always worked fine for me doing it that way.
and when all else fails then what next??
random question.. that wifi fix that was for the mobile cellular devices would that work for the troubled wifi??? im gonna look for it to see
this thread is priceless! Thanks a million! i was pulling my hair out.
Fantastic... I can live with this workaround!!! Still a thousand times better than a struggling WebOS.
THANK YOU!
HOW CAN I FIND THE "wifi sleep policy" ON THE HP TOUCHPAD?
Go into Wi-Fi settings then press the menu button and the Advanced options menu pops up.
Recently I disabled the best wi-fi performance option (I enabled it on accident while messing around with settings on launch day) which obviously increased my battery life dramatically by actually allowing my phone to go into deep sleep. But now I hit a new issue.
Before I go on, I want to state that I DID apply the SmartSync fix and that my data IS working while my phone is in deep sleep.
New emails I receive with Gmail app do not get pushed to my phone as they should. They are anywhere from 5-15 minutes late if they even show up at all. If I happen to turn my screen on, automatically I get the notification of new emails.
Is anyone else having this issue with Gmail or any other app? I find it strange that while I have data (wi-fi/3g) enabled and working with the screen off, emails still come in delayed.
Any help would be appreciated. I have searched around and most of the answers I came up with (regarding HTC devices like the One X) had to do with SmartSync messing up the connection or someone not having the notifications enabled. I'm at a loss 0.0
EDIT: I tested this with Google Talk had my main account up in Gmail and in another browser windows my other Gmail account. Added both of them, talked to my self, if my device screen was off, I would either get it 1-2 minutes late or not at all. Once I turned my screen back on, the notifications poured in. I also tried the same scenario with my main Gmail account logged off (in case it was canceling out the messages to my phone, which it wasn't) and I had the same outcome. I edited the title to reflect that this isn't a Gmail only issue.
EDIT 2: Did more tests, I tried turning Wi-Fi off completely and running the same tests as above to my surprise everything worked as expected. I initially thought it might be because of my 5Ghz Wi-Fi band, so I tried it all again on my 2.4Ghz channel -- had the same problems as before. Somehow the issue pertains to your screen being off and Wi-Fi being on.
EDIT 3: I just tried streaming Pandora and shutting the screen off (maybe WiFi WAS somehow shutting off) Pandora kept playing no problem. I messaged myself on Talk, got the notification right away. This is very bizarre 0.0 But it might confirm this only happens when the phone is in deep sleep mode... Still doesn't answer why it doesn't happen on 3G or why notifications sometimes still come through.
EDIT 4: Still no fix but I have discovered that for some reason if the screen is off ANY data doesn't go through. Let me explain better:
If I have some thing like Pandora running then it will continue to run once I shut my screen off. But if WiFi isn't being used and I turn my screen off and then lets say I try to connect to it with Cerberus or ping it from my PC or something it will not even though the router reports it as connected.
Very strange behavior.
This is interesting...maybe the wifi performance toggle is associated to the smartsync, and all?.....I will say that with it unchecked I am getting some really really good battery life here compared to previous phones....but I also notice at times when emails are not pushed till I wake the screen during the day....Also the fact my wifi doesn't automatically reconnect to my house when I get back from work till I wake the screen...little things like that...
Havent messed with the best performance setting but will try it today now...
Racer Of All said:
Recently I disabled the best wi-fi performance option (I enabled it on accident while messing around with settings on launch day) which obviously increased my battery life dramatically by actually allowing my phone to go into deep sleep. But now I hit a new issue.
Before I go on, I want to state that I DID apply the SmartSync fix and that my data IS working while my phone is in deep sleep.
New emails I receive with Gmail app do not get pushed to my phone as they should. They are anywhere from 5-15 minutes late if they even show up at all. If I happen to turn my screen on, automatically I get the notification of new emails.
Is anyone else having this issue with Gmail or any other app? I find it strange that while I have data (wi-fi/3g) enabled and working with the screen off, emails still come in delayed.
Any help would be appreciated. I have searched around and most of the answers I came up with (regarding HTC devices like the One X) had to do with SmartSync messing up the connection or someone not having the notifications enabled. I'm at a loss 0.0
EDIT: I tested this with Google Talk had my main account up in Gmail and in another browser windows my other Gmail account. Added both of them, talked to my self, if my device screen was off, I would either get it 1-2 minutes late or not at all. Once I turned my screen back on, the notifications poured in. I also tried the same scenario with my main Gmail account logged off (in case it was canceling out the messages to my phone, which it wasn't) and I had the same outcome. I edited the title to reflect that this isn't a Gmail only issue.
EDIT 2: Did more tests, I tried turning Wi-Fi off completely and running the same tests as above to my surprise everything worked as expected. I initially thought it might be because of my 5Ghz Wi-Fi band, so I tried it all again on my 2.4Ghz channel -- had the same problems as before. Somehow the issue pertains to your screen being off and Wi-Fi being on.
Click to expand...
Click to collapse
Try installing this https://play.google.com/store/apps/details?id=com.logicvoid.powersaversettings&hl=en and unchecking "put data connection to sleep." It may not solve the issue but its worth a shot.
Okay, I just tried streaming Pandora and shutting the screen off (maybe WiFi WAS somehow shutting off) Pandora kept playing no problem. I messaged myself on Talk, got the notification right away. This is very bizarre 0.0 But it might confirm this only happens when the phone is in deep sleep mode... Still doesn't answer why it doesn't happen on 3G or why notifications sometimes still come through.
njfoses said:
Try installing this https://play.google.com/store/apps/details?id=com.logicvoid.powersaversettings&hl=en and unchecking "put data connection to sleep." It may not solve the issue but its worth a shot.
Click to expand...
Click to collapse
Have it, and it is unchecked. That's the weird thing, wi fi doesn't actually turn all the way off because SOMETIMES I do get the push notifications (late, however).
sgt. slaughter said:
This is interesting...maybe the wifi performance toggle is associated to the smartsync, and all?.....I will say that with it unchecked I am getting some really really good battery life here compared to previous phones....but I also notice at times when emails are not pushed till I wake the screen during the day....Also the fact my wifi doesn't automatically reconnect to my house when I get back from work till I wake the screen...little things like that...
Havent messed with the best performance setting but will try it today now...
Click to expand...
Click to collapse
Let me know if that works, if so at least I know I'm not the only one xD
Racer Of All said:
I DID apply the SmartSync fix
Click to expand...
Click to collapse
what is the smart sync fix?
When I installed this app, my cpu reduction and frame rate reduction was enabled. Does that mean this is standard with this phone. Does using this app to disable those setting improve the performance?
Issue continued overnight, tried various other things and nothing seems to fix it. I want to get my notifications but I don't want to destroy my battery life xD is anyone else having this issue?
djscissorhands said:
what is the smart sync fix?
Click to expand...
Click to collapse
This one:
http://forum.xda-developers.com/showthread.php?t=1697375&highlight=smartsync
I have the same problem on my 2nd evo as well after returning the 1st. Going to try a rom with the fix tomorrow. I'll report back with what I find. Hopefully I won't have to return again....
Sent from my EVO using xda premium
AardvarkAttack said:
I have the same problem on my 2nd evo as well after returning the 1st. Going to try a rom with the fix tomorrow. I'll report back with what I find. Hopefully I won't have to return again....
Sent from my EVO using xda premium
Click to expand...
Click to collapse
It's definitely not a hardware problem because if that was the case the phone wouldn't work with wi fi almost at all. My wi-fi connection is rock solid even when the screen is off, just for some reason it won't notify I have the messages until the screen gets turned on.
I did some tests on my gf's stock phone and she's having the same issues, I told her to do some tests on her parents wi-fi when she goes there. I wonder if sgt slaughter has any news.
Btw if you definitely need them on time and need to be on wi fi but don't care about battery life that much just enable best wi fi performance.
djscissorhands said:
what is the smart sync fix?
Click to expand...
Click to collapse
Actually more like a Smart Sync break ... The built in settings/app put your data connections to sleep when your phone goes to deep sleep; this is done to save battery when phone not in use for extended period.
Some folks hate losing the data connections so a flashable "fix" is available for the "problem" ... Look around; you'll find it
Sent from my EVO using XDA
its a sense problem, there's a thread in the one x forums on how to fix it. I'll post when I get home if I can find it. it shuts down to a 'power save' mode after a while plus after midnight or 11 or something.
Just wanted to update that I installed a custom rom that contains the WiFi fix mentioned and although my WiFi doesn't seem to drop how it did before (at least after one day) my notifications are anywhere between 4-10 minutes late on average through WiFi. This seems to be across the board for Exchange email, Gmail & Google Voice.
AardvarkAttack said:
Just wanted to update that I installed a custom rom that contains the WiFi fix mentioned and although my WiFi doesn't seem to drop how it did before (at least after one day) my notifications are anywhere between 4-10 minutes late on average through WiFi. This seems to be across the board for Exchange email, Gmail & Google Voice.
Click to expand...
Click to collapse
Yes my setup also had the wi-fi fix, I can even see my phone connected to the router when the screen is off, the connection is strong.
I had a suspicion it was probably the basic transfer rate of the browser and for some reason I could not adjust this on my fancy 100 dollar router with dd-wrt flashed onto it so I set up a repeater with my older router on stock settings. It seems like the notifications are coming through better now (albeit not instantly) but at least I don't have to turn my screen on every time. It might be a placebo effect or just luck (because at times it does work even with my other router).
EDIT: Ignore the italicized sentence. It was just a stroke of luck, the problem came back.
I'm out of ideas at this point xD
I am having a similar issue as well.
I am rooted and running Fresh Evo LTE 5.1.1 which has the "Disabled SmartSync deep sleep mode" already installed. I also leave my WiFi off (for the same reason as the OP outlines - messages are just plain not arriving or if they do it's after I turn the screen on).
I use gtalk as my primary form of communication on my phone and what seems to be happening is messages from my two closest friends are never arriving. It's hit or miss but seems to be ~45mins after my screen turns off that they send a message and I never get it. One is on Sprint on my family plan and the other is on Verizon. The weird thing is that if I look in my gmail > conversations the messages aren't there either.
I haven't been able to verify any SMS messages that I haven't received but I have noticed that my email notifications seemed a bit wonky but this issue may be fixed with changing my "push" hours (which is retarded to have factory set to only push email between 8am - 8pm).
Question for the smart kids in the class: When does the phone reach "deep sleep"? Is it around ~45mins after the screen turns off?
batgrrlx said:
I am having a similar issue as well.
I am rooted and running Fresh Evo LTE 5.1.1 which has the "Disabled SmartSync deep sleep mode" already installed. I also leave my WiFi off (for the same reason as the OP outlines - messages are just plain not arriving or if they do it's after I turn the screen on).
I use gtalk as my primary form of communication on my phone and what seems to be happening is messages from my two closest friends are never arriving. It's hit or miss but seems to be ~45mins after my screen turns off that they send a message and I never get it. One is on Sprint on my family plan and the other is on Verizon. The weird thing is that if I look in my gmail > conversations the messages aren't there either.
I haven't been able to verify any SMS messages that I haven't received but I have noticed that my email notifications seemed a bit wonky but this issue may be fixed with changing my "push" hours (which is retarded to have factory set to only push email between 8am - 8pm).
Question for the smart kids in the class: When does the phone reach "deep sleep"? Is it around ~45mins after the screen turns off?
Click to expand...
Click to collapse
I also have the dual core mod which I BELIEVE sets my deep sleep right away which is probably why I have the problem more often than you do. One question just so we can start gathering facts large scale, if you're on 3G do you have the problem still? What if you turn 'best wi-fi performance'?
Racer Of All said:
I also have the dual core mod which I BELIEVE sets my deep sleep right away which is probably why I have the problem more often than you do. One question just so we can start gathering facts large scale, if you're on 3G do you have the problem still? What if you turn 'best wi-fi performance'?
Click to expand...
Click to collapse
Correct - I have this problem on 3G. I run on only 3G because the problem is more prevalent on WiFi, but still very common on only 3G.
Currently I have "best wifi performance" turned off. Do you want me to test with it on or off?
batgrrlx said:
Correct - I have this problem on 3G. I run on only 3G because the problem is more prevalent on WiFi, but still very common on only 3G.
Currently I have "best wifi performance" turned off. Do you want me to test with it on or off?
Click to expand...
Click to collapse
On. When I turn it on it pretty much eliminates the issue, it acts just like 3G. But for me 3G is almost perfect (a couple seconds of delay but I can deal with that). Remember though that if you leave it ticked on it will destroy your battery life.
WiFi is on, best WiFi performance is on as well.. I'll run it this way a couple of days and see if I can replicate the problem.
I just wanted to say that I've been having similar issues. I have tried turning on best wifi performance, but I don't think that is helping. For one thing, when I have that turned on, when I wake the phone, the wifi is often times not connected, and it shows 3G. Then it will connect to wifi shortly after I wake the phone. On top of that, I'm still not getting notifications on time. I was notified of an email when I woke the phone that actually came in 10 minutes earlier. Hopefully HTC/Sprint is aware and working on a fix.
Still no fix but I have discovered that for some reason if the screen is off ANY data doesn't go through. Let me explain better:
If I have some thing like Pandora running then it will continue to run once I shut my screen off. But if WiFi isn't being used and I turn my screen off and then lets say I try to connect to it with Cerberus or ping it from my PC or something it will not even though the router reports it as connected.
Very strange behavior.
Ok, this is a good one. I'm a long time root/custom ROM person all the way back to a G2 and I've not heard of something like this happening.
I got an S5. Rooted it successfully with Chainfire's auto root as described here: https://www.youtube.com/watch?v=qaZvtGwwziQ
All was well, but after a few days, I began to notice that I was not getting notifications regularly. After quite a bit of testing, and here is where it gets really weird, I was able to determine that:
-When the phone is connected to wifi and
-When the screen is off
I get NO notifications. Gmail, Facebook, Life360, nothing comes through. I've waited 5+ minutes to get one, and nothing. Then, when I turn the screen on, they all come flooding in at once. If I disable wifi, notifications come through fine. This makes no sense to me. SMS and MMS however, work fine regardless of root and/or wifi connection.
I spent quite a bit of time with a TMO rep who did all she could do to no avail. She said I should return the device for another one, which I did today.
On an unrooted, brand new device (no apps installed either), I could now get these notifications when connected to the wifi. Strange, but ok. So I rooted it, and the SAME problem began again. No notifications when on wifi.
I must have sent 30+ emails to myself trying various things to get it to work on wifi, but no dice.
I checked to make sure wifi stays on when the phone is alseep, and it was.
I checked the Samsung push service was active, and it was.
I am on the ANCH update.
I am seriously stumped here. I suppose my next step is to unroot it and see if the problem goes away. I am really surprised that no one else has reported this!
Thanks so much for your time and input. This one is killing me...
Chris
Well, I just took the NE6 software update via Kies, and nothing has changed.
I should also have said in the first post that when on wifi, and the screen is ON, all notifications are instantly delivered.
/sigh
Again, thanks for any input.
Chris
Have you tried different wifi access points? You could have background data disabled under power saving mode. I remember seeing an option to block notifications while the screen is off. I can't remember exactly where the option is located tho.
savoritz said:
Have you tried different wifi access points? You could have background data disabled under power saving mode. I remember seeing an option to block notifications while the screen is off. I can't remember exactly where the option is located tho.
Click to expand...
Click to collapse
Thanks for the thoughts. Really appreciate the input.
I have not had a chance to try other wifi access points yet, but will do that today I hope.
I did check all the power saving modes, and all were disabled.
I'll look for an option to block notifications when the screen is off, but it seems like if that was turned on, then I wouldn't get notifications regardless of being on wifi or not.
Interesting note though: Last night, on wifi, I did get notifications for some emails. So it does "work", but they are very, very delayed. I'll try and determine how delayed today as well, but for now, I will just leave wifi disabled
Again, thanks very much for any input.
Chris
Did this ever get fixed? I've been experiencing the same issue it's driving me nuts. I have my phone set to not sync, I'll manually sync but it will take several minutes, if ever to sync. My phone is getting good wifi speeds between 60-90mbits down, and I can browse the Web without delay but stuff that syncs... Facebook, Gmail, etc. All have an excessive delay.
Sent from my SM-G900T using XDA Free mobile app
I leave my phone near me and not charging while I'm asleep. In the morning after sitting all night I pick it up and try to poke some buttons on a web page that controls the lights in my room. This never seems to work until I've been trying for a while, as though the network isn't talking any longer and it has to wake up, but I found the advanced wifi settings, and they say leave wifi active even when phone is asleep. I've tried doing a refresh to make sure it is talking to the web server and have seen it give an error that the web page isn't accessible, then immediately redraw the screen with the proper contents (like, "oops! it is accessible after all, forget I mentioned that").
Never saw this with my old nexus 5, or even the cheap amazon tablet I sometimes use. Only the new technologically advanced s9+ has this problem .
Is there some other sleep mode setting I need to find besides the one under wifi advanced settings?