Anyone know of a way to turn "Scanning" for wi-fi networks off after you are "Connected" to a wi-fi network thus saving battery? Turning off "Notify me" does not do it.
Larry Fortune said:
Anyone know of a way to turn "Scanning" for wi-fi networks off after you are "Connected" to a wi-fi network thus saving battery? Turning off "Notify me" does not do it.
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I think it stops scanning once ur connected and leave the page..if u reopen the WiFi page it scans then stops,at least in mine it does..
Sent from my SCH-I605 using xda premium
From what I've read, this seems to be the way it works. Bottom line it will scan every 4 secs or so while you are on the settings page in case you are trying to connect to a new network, then revert to wifi.supplicant_scan_interval from build.prop when not on the settings page. It's not clear that it has much of a battery impact whatever you set it to. I leave wifi on all the time and whether I am on wifi all day or out and about on lte my battery usage for wifi is negligible.
http://forum.xda-developers.com/showpost.php?p=20250907&postcount=31
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Hi guys,
Do you know if AT&T automatically prefers WiFi over 4G? If not, is there a way to set it so that I can save on my 2GB limit imposed by ATT? thanks
Bascotie said:
Hi guys,
Do you know if AT&T automatically prefers WiFi over 4G? If not, is there a way to set it so that I can save on my 2GB limit imposed by ATT? thanks
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Set WiFi sleep policy to "never" - then the only things that will use cell data when you are connected to an access point are market checkins (but not market downloads) and MMS. Maybe not even MMS.
Note that the phone won't automatically connect to open APs that you haven't connected to before.
If you have wifi sleep policy set to "when screen is off", background data will be over the cell connection.
Entropy512 said:
Set WiFi sleep policy to "never" - then the only things that will use cell data when you are connected to an access point are market checkins (but not market downloads) and MMS. Maybe not even MMS.
Note that the phone won't automatically connect to open APs that you haven't connected to before.
If you have wifi sleep policy set to "when screen is off", background data will be over the cell connection.
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Sorry but I can't find this setting. I'm looking in power saving settings and the only thing i see is turn off wifi when NOT connected with mobile AP. Does mobile access point mean wifi or cell data?
Settings>Wireless and network>Wifi settings hit menu and select Advanced
tysj said:
Settings>Wireless and network>Wifi settings hit menu and select Advanced
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thanks,
just checked and its set to never.
I think you want to control access of data retrieval via cell network, right?
what I did was set the receiver options to airplane mode and then only enable the WiFi. That keeps the cell net from connecting. Also d/l an app to monitor your usage for piece of mind.
HTH
-=s=-
thanks, i found an app called APN On/off
-=skydoc=- said:
I think you want to control access of data retrieval via cell network, right?
what I did was set the receiver options to airplane mode and then only enable the WiFi. That keeps the cell net from connecting. Also d/l an app to monitor your usage for piece of mind.
HTH
-=s=-
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If you do that you don't receive any call or sms, no?
QuarkZ26 said:
If you do that you don't receive any call or sms, no?
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With APN On/Off, it's a free app. I turn off the data and can still do everything else. It even has an option to keep MMS enabled
While on wifi, do I need to turn off Data in order to save battery? I *think* the phone will use the wifi if its available anyway instead of cellular Data but will actually turning off Data while wifi is enabled and connected save battery?
The data is automatically turned off while wi-fi is connected unless you have some rogue app that insists to use cell data connection.
foxbat121 said:
The data is automatically turned off while wi-fi is connected unless you have some rogue app that insists to use cell data connection.
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Note, this is only if "wifi sleep policy" is "never".
Otherwise, it'll go to the cell connection when the screen is off.
The only app I know of right now that can force cell data traffic while wifi is connected is the Market when it does its initial compatibility checks. (Downloads still go over wifi.)
3 out of 4 times my phone fails to disconnect the mobile data network when I connect to WiFi. This is draining my battery unnecessarily.
What could be causing this unless I can fix it so it is automatic I will have to stop using wifi so it doesn't waste power keeping both connections going.
I am running a 2.3.6 rom.
Do you toggle the connections or just enable/disable WiFi? When you enable WiFi and connects, does the 3G icon (the two arrows) appear next to the WiFi icon?
my phone does both I have a program that shuts it completely off when I go to work then back on when i get home based on time.the rest of the time it is on even if I go away which then it just disconnects but wifi is still on.
I have not paid enough attention to when it happens but when it does I have both the wifi icon and the data arrows at the same time.
shadowofdarkness said:
I have a program that ...
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I think you just answered your own question
What program are you using? Might a suggest a change for Juice Defender for example? or many others that do the same thing...
I have a Tasker profile set to enable wifi whenever my home access point is within range. The problem is that it doesn't enable wifi, even when the profile activates. When I unlock the phone and open the browser it uses the data connection, and doesn't enable wifi. Has anyone else had this problem with Tasker?
I also run Juice Defender (Ultimate). Could this be causing a problem with Tasker's control of wifi?
Could be, I also had this problem when using J.D. Since I stopped using it had no more probs and battery got better!
Sent from my GT-I9100 using XDA
kezgez said:
Could be, I also had this problem when using J.E.g. Since I stopped using it had no more probs and battery got better!
Sent from my GT-I9100 using XDA
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"J.E.g" ???
itm said:
I have a Tasker profile set to enable wifi whenever my home access point is within range. The problem is that it doesn't enable wifi, even when the profile activates. When I unlock the phone and open the browser it uses the data connection, and doesn't enable wifi. Has anyone else had this problem with Tasker?
I also run Juice Defender (Ultimate). Could this be causing a problem with Tasker's control of wifi?
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Correct me if I'm wrong, but, if you have Tasker turning off Wifi, as in Disabling itself when out of range, than how will it be able to know you are in the vicinity of a hotspot to Enable itself? As in, its off, it can't detect wifi signals, so how can it know you are in the vicinity? You might be better off using a GPS option to enable Wifi.
sieepiestangel said:
Correct me if I'm wrong, but, if you have Tasker turning off Wifi, as in Disabling itself when out of range, than how will it be able to know you are in the vicinity of a hotspot to Enable itself? As in, its off, it can't detect wifi signals, so how can it know you are in the vicinity? You might be better off using a GPS option to enable Wifi.
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Tasker will peroidically toggle wifi on to check if you are back in range of your access point. You can adjust the checking period within tasker.
Best to set the time to, say, 15 mins (set as 900 secs in the app).
I am having serious wifi issues on my T-Mobile P769 20f Jellybean which makes wifi pretty much unusable.
I have the following advanced wifi settings:
Keep wifi on during sleep = always
avoid poor connections = disabled
wifi frequency band = auto
When I am connected to wifi it will be for no longer than a few minutes before the connection drops. Sometimes it restarts on its own. Sometimes I need to kick it by toggling wifi on and off.
When I am connected I have piss poor link speed, only 5 mpbs. The connection is very slow. It took me on the order of 5 minutes today to download "wifi analyzer", an app which is less than a megabyte.
When I set wifi frequency band to 5ghz, I don't even see the 5ghz network which my dual band router (Asus rt n66u) has created on a separate SSID altogether. I only see my 2.4ghz network but trying to connect to it by clicking on the name does nothing.
When I am connected to my 2.4ghz network I have changed the ip settings from DHCP to static and that doesn't seem to help as other threads I have read suggest. My connection still frequently drops.
Finally I wish to try changing the wifi power saving setting by dialing *#0011# but that just yields "invalid MMI code".
Does anyone have any ideas? I am at my wits end with this wifi that is unusable and I am currently roaming so cannot turn on my data. It seems to me that this is the infamous Jellybean wifi issue but maybe not.
Any help is appreciated.
Yeah jellybean has a lot of problems, ice has the best Wi-Fi driver. I think wind 21b has good wifi, it's been awhile since I've been on that Rom, so I might be wrong. Maybe we can port the wifi driver from ice to the jellybean, not sure if we can though.
Sent from my LGMS769 using xda app-developers app
It may sound stupid but have you checked that your router firmware is up to date? Other than that I would try a backup if the problem wasn't pre existing. Last resort reflash it.
Sent from my LG-P769 using xda app-developers app
I had this problem whenever I have any "battery saving" app running (Battery Saver, Juice Defender, etc.). Turn them off and have my wifi on all day (or maybe using Llama / Tasker to turn wifi off at night) solves my problem.