[Q] Bluetooth audio interfered by WiFi activity - Galaxy S II Q&A, Help & Troubleshooting

Just noticed that for me, bluetooth audio to a Sony Ericsson MH100 headset will skip and drop out for periods as WiFi is active in connecting/disconnection to a network, or actively transferring data.
- Tried PowerAMP with various buffer settings, but audio cuts out instantly when activating WiFi, so audio buffer doesn't even have time to run out, and music is still progressing within the played track as the audio cuts out.
- Tried Samsung Music player, still same issue.
This can happen in some phones/cases and is not uncommon, but it never happened with my SGS1. Are the WiFi and Bluetooth functions sharing the antenna now, and weren't in the SGS1? Poorly written drivers for the Stock ROM in the SGS2 (I was using CM7 for a long period with my SGS1)?
Anyone else care to test this, maybe there are some details that makes this preventable, depending on how the phone connects to certain networks or such? Currently I don't have any other headphones to test, though I mildly doubt that will make a difference.

BT & WiFi both use the 2.4GHz band, so interference between them is not unusual. If you can, try a different WiFi channel; it's usually a setting on the WiFi router/access point.
I've read that the SGS2 supports the 5 GHZ WiFi band, so that may be an option. However, I just tried it on my SGS2, with my Netgear WNDR3700 router, which has both 2.4 & 5 GHz access points. The SGS2 couldn't see the 5 GHz network, but works just fine with the 2.4 GHz network.

They use the same frequency, and many phones share the same antenna for Bluetooth and wifi too. My Nokia n95 would stutter Bluetooth music when I used wifi to load pages, due to throughput constraints I assumed at the time. Looks like this is still the case with phones.

3waygeek said:
BT & WiFi both use the 2.4GHz band, so interference between them is not unusual. If you can, try a different WiFi channel; it's usually a setting on the WiFi router/access point.
I've read that the SGS2 supports the 5 GHZ WiFi band, so that may be an option. However, I just tried it on my SGS2, with my Netgear WNDR3700 router, which has both 2.4 & 5 GHz access points. The SGS2 couldn't see the 5 GHz network, but works just fine with the 2.4 GHz network.
Click to expand...
Click to collapse
Thanks for the reply, when you say that it works fine on the 2.4GHz band, it doesn't interfere with bluetooth audio for you when using WiFi? That's hopeful, I just hoped it wasn't a 100% limitation with the phone, that it constantly has to switch between either bluetooth audio or WiFi activity.

Related

[Q] Weak Wi-Fi?

Has anyone else had issues with the strength of the wi-fi signal on this phone? When I'm in certain areas of my house, I will have severe lag with browsing, with the People hub, etc. Music and video will stream poorly, with heavy buffering. Basically, I get all the signs of low signal. The problem is, I've never had a problem with other phones I've used, including an HD7, Dell Venue Pro, Nexus S, Nokia N8, etc.
I tested the WiFi signal in these areas, and I get back a consistent signal between 70dbm - 80dbm, so I have a moderate amount of signal to work with. Has anyone else noticed poor WiFi coverage with this phone? Should I get it exchanged?
Same. Something is definitely fishy with the wi-fi on this device. It seems to come and go, and manifests as poor or even no wi-fi capability even when the phone says it is connected to a strong wi-fi signal.
I frequently cannot get a solid Tango video call going between 2 Radars on my home wi-fi network. Pretty frustrating seeing "network problems" and getting a choppy experience when both phones are on wi-fi with full signal strength.
My WiFi is solid with my N router
Today is my first day with the radar and I'm noticing WiFi issues. I think though some of it is related to Zune WiFi sync connecting...
Sent from my HTC Radar 4G using XDA Windows Phone 7 App
For the people connected to 802.11n routers, are your routers in pure N mode?
The Radar I have can connect to my 802.11g router no problem but can't even find my 802.11n. I'm thinking it doesn't have N connectivity...
Just asking.
Mine is BGN
murdakillemall said:
For the people connected to 802.11n routers, are your routers in pure N mode?
The Radar I have can connect to my 802.11g router no problem but can't even find my 802.11n. I'm thinking it doesn't have N connectivity...
Just asking.
Click to expand...
Click to collapse
I found out my particular problem is the Windows Phones only work on the 2.4ghz (currently used on my 802.11g router) band and not the 5ghz (my 802.11n router) band.
Now I know.
To the OP, this 2.4ghz band is usually crowded so maybe where you are going in your house, your phone is meeting with interference (land line wireless phone, neighbors wi-fi, etc...).
murdakillemall said:
To the OP, this 2.4ghz band is usually crowded so maybe where you are going in your house, your phone is meeting with interference (land line wireless phone, neighbors wi-fi, etc...).
Click to expand...
Click to collapse
I don't think it's an interference issue, as every other device I own has no such issues, including 3 other Windows Phones (Dell Venue Pro, HD7 Omnia 7). And despite already using the channel with the least interference, I've tried switching that around as well. To me, there is clearly something not performing correctly in regards to the WiFi radio on this device.

[Q] 5GHZ Wifi

I was surprised to find that this phone supports bot 2.4GHz and 5GHz for wifi. However, I am having a problem getting it to connect to my 5GHz N radio. It will see it and says that the signal is excellent. I type in my WPA key and hit connect. It attempts to connect then goes back to disconnected. If I click on the name of it, it show signal as poor and link speed as -1Mbps. It connects fine to the 2.4GHz radio. The router is a Buffalo WZR-HP-AG300H running DD-WRT. Has anyone else had this issue?
i thought wifi was only 2.4ghz on this phone. my 5ghz network doesnt even show on my phone.
5ghz seems to be working fine for me
only certain 5ghz channels are supported. see if ur router is on channel 36 for 5ghz.
grad20_09 said:
only certain 5ghz channels are supported. see if ur router is on channel 36 for 5ghz.
Click to expand...
Click to collapse
I have been able to use channels 140 and 149 as well as 36. What I did notice is that the first time I connect to (the very first time or if I make a change to the router) the wifi signal will drop and start several times.....I find if I just turn off wifi and turn it back on and reconnect it will hold.
Actually, I have it running on 144 and working now. I had to set the mode from N only to NA mixed.
Sent from my EVO using XDA
dagnasty said:
Actually, I have it running on 144 and working now. I had to set the mode from N only to NA mixed.
Sent from my EVO using XDA
Click to expand...
Click to collapse
Hmmm...mine is set to N only...being its the only device on my 5G connection.
Yea, the only thing on mine is my other router setup as a bridge for my downstairs. I guess ill leave it since its working
Sent from my EVO using XDA
I've got an apple airport extreme. my evo connects just fine on 5ghz
I have a Cisco ISR wireless router and I use strictly 5Ghz. It's wireless-A, not wireless-N, but it's strictly 5Ghz and it scan and uses whatever channel it wants. No issues so far.
I tried N network a while ago on my older phones (not 5Ghz N) and noticed more battery drain VS G. Since then I have switched my N to 5Ghz and just use my ipad3 for it. My phone I keep on G network. I don't see any real point to having it on a N network. G I still pull 10+ megabits down which is more than enough for pretty much anything the phone can do. Not really worth the extra battery drain in my opinion. My ipad I like on higher speed since I stream MKV files but the phone I think is pointless at least for me.
Sprint HTC Evo 4G LTE 5Ghz WiFi
dagnasty said:
I was surprised to find that this phone supports bot 2.4GHz and 5GHz for wifi. However, I am having a problem getting it to connect to my 5GHz N radio. It will see it and says that the signal is excellent. I type in my WPA key and hit connect. It attempts to connect then goes back to disconnected. If I click on the name of it, it show signal as poor and link speed as -1Mbps. It connects fine to the 2.4GHz radio. The router is a Buffalo WZR-HP-AG300H running DD-WRT. Has anyone else had this issue?
Click to expand...
Click to collapse
I actually had the exact same problem as you mentioned. The one thing I wanted to add to your excellent description of problem symptoms is that it says "Authenticating", and that is when it drops the signal to -1Mbps. Something during the authentication process seems to kill the radio connectivity. This has not happened on any of my other 802.11n devices. It connects fine on the same router's 802.11g. I had no issues with my previous phone (Samsung Epic Galaxy S).
Interestingly my router is a different brand but perhaps it shares some similar chipset. My equipment as follows:
Bone stock Sprint HTC Evo 4g LTE (on Ice Cream Sandwich, duhh)
Belkin Play N600 HD Wireless Dual-Band N+ Router (F7D8301 v1)
After reading the other posts here it inspired me to play with my Router configs for 802.11N. Turns out after making some adjustments I was able to get connected.
-I had the following selected:
Wireless Channel: Auto
Extension Channel: 40 (grayed out)
Wireless Mode: 802.11a&n -Worked after changed to 802.11n
Bandwidth: 20/40MHz
Protected Mode: OFF -Worked after changed to On
802.11e/WMM QoS: On
I honestly think it was the Protected Mode that made the difference. Here is what the router help page says about that feature: Protected Mode
NOTE: In most situations, best performance (throughput) is achieved with Protected Mode OFF. If you are operating in an environment with HEAVY 802.11b traffic or interference, best performance may be achieved with Protected Mode ON.
So long story short, try turning Protected Mode ON in your 802.11n configs first and see if that gets it going for you. Hope that helps!
P.S. After changes above I ran some Speedtest.net for Android tests (back to back) and got the following from the next room over (about 20 feet from router):
Test 1: On 802.11n: 17024kbps down, 5857kbps up, 27ms ping
Test 2: On 802.11n: 18134kbps down, 6266kbps up, 39ms ping
Test 3: On 802.11g: 15385kbps down, 6091kbps up, 25ms ping
Test 4: On 802.11g: 22212kbps down, 5785kbps up, 43ms ping

[Q] HTC One won't connect to internet using 5ghz wifi

Just got this phone today,
I have a Netgear R6300 capable of AC wifi but my phone wont connect to the internet when its on the 5ghz network. It works fine on the 2.5ghz but the other it connects but no internet.
I tried giving it a reserved ip and looking at the settings on my router but nothing is popping out at me?
Anyone have any ideas?
HTC One on Rogers network (Canada)
WakeTurbulence said:
Just got this phone today,
I have a Netgear R6300 capable of AC wifi but my phone wont connect to the internet when its on the 5ghz network. It works fine on the 2.5ghz but the other it connects but no internet.
I tried giving it a reserved ip and looking at the settings on my router but nothing is popping out at me?
Anyone have any ideas?
HTC One on Rogers network (Canada)
Click to expand...
Click to collapse
Check the Advanced Wi-Fi settings. Check Freq Band and make sure it is not set to 2.4 GHz only. Also try turning on "Best Wi-Fi Performance" and see if that helps.
Mine connects to my 5GHz network with no problems at all.
Hope that helps.
kevinrstruck said:
Check the Advanced Wi-Fi settings. Check Freq Band and make sure it is not set to 2.4 GHz only. Also try turning on "Best Wi-Fi Performance" and see if that helps.
Mine connects to my 5GHz network with no problems at all.
Hope that helps.
Click to expand...
Click to collapse
What router do you have? Also what kind of connection speed are you getting?
I checked freq and it was on auto, tried just 5ghz, also tried Best wifi but it still cant connect to the internet. I gets a connection with the router according to the phone but my 6300 doesnt show it as a connected device.
no problem here i can connect to my 5Ghz network with my a/n capable Time Capsule router. speeds are 55..27 Mbps download / 35.95 Mbps upload. my One wifi settings are set to Auto (vs. setting to 2.5 or 5 Ghz).
I have a Netgear WNDR4500. Speeds are 40 Mbps down and 28 Mbps up. That is with the router 2 floors above me in my house. My settings are also set to "Auto" as well. I connected immediately when I got home on Thursday after getting the device. I have had no problems at all with WiFi. Sorry I cannot be of more assistance.
I have no problem when connecting to my R6300 in AC mode ...
mine connects just fine
No connection at 5ghz, can only connect at 2ghz
I have d-link dr-825 rev B router with [DD-WRT v24-sp2 (04/01/13) std - build 21153] firmware. It has dual 2ghz and 5ghz radios.
I can only connect at 2ghz and unable to connect at 5ghz.
I have a dell latitude laptop and my old Galaxy SII has no problem connecting.
Howvever Htc-One lists the access point, correctly determines what kind of security is on (like wpa/wpa2 etc) but is unable to connect. I think once I saw a brief flash saying authentication failure on my phone when trying to connect to 5ghz. So I removed all security and made it completely open just to try. Again no connection without any error.
I am thinking of returning it if it is going to be a problem.
---------- Post added at 12:17 PM ---------- Previous post was at 11:40 AM ----------
Ok, I have solved the problem, now it is connecting. I made two changes in the wirless setup. Enable RTS/CTS protection and also enabled short preamble. After these two changes it is connecting as expected.
WakeTurbulence said:
Just got this phone today,
I have a Netgear R6300 capable of AC wifi but my phone wont connect to the internet when its on the 5ghz network. It works fine on the 2.5ghz but the other it connects but no internet.
I tried giving it a reserved ip and looking at the settings on my router but nothing is popping out at me?
Anyone have any ideas?
HTC One on Rogers network (Canada)
Click to expand...
Click to collapse
I'm having the same issue with mine and the same router, can not quiet figure out what is going on.
Just quick update i just did an update on my router and it seems to connect completely fine
For those who have router issues, check for a firmware update! Most routers have a few updates while sitting on the shelf. I used to always update and properly configure routers (with out the software disc) for customers at my old job and we rarely had problems of customers bribing it back. And throw out the disc that comes with the router. The software can cause headaches down the road. All security settings can be done inside the router through any web browser and router IP.
Just got a black ATT HTC ONE, everything is great, but no connection to 5ghz network here either.
I have a Netgear WNDR3700 and just updated to the DD-WRT build 21676, and still no go...
All our macbook airs are working fine on the 5ghz...:cryingrobably time for a new router lol
Connects to my linksys ea6500 5ghz ac just fine link speed around 400 mbps
Sent from my HTC One using XDA Premium HD app
Added an Airport Express, and 5ghz works fine from that...
cq_ said:
Just got a black ATT HTC ONE, everything is great, but no connection to 5ghz network here either.
I have a Netgear WNDR3700 and just updated to the DD-WRT build 21676, and still no go...
All our macbook airs are working fine on the 5ghz...:cryingrobably time for a new router lol
Click to expand...
Click to collapse
Prefers 2.4
I have a dual band N router, and my One seems to "prefer" connecting to the 2.4 GHz network over the 5 GHz.
It will work fine on the 5GHz, but I have to switch it manually when I walk in the house (so I usually don't).
I guess I could just tell my phone to "forget" the 2.4 network to fix this. On more thinking, maybe it's a coverage thing - it probably finds the 2.4 GHz network first. Lower frequencies penetrate walls better, right?
doxy-LS said:
I have a dual band N router, and my One seems to "prefer" connecting to the 2.4 GHz network over the 5 GHz.
It will work fine on the 5GHz, but I have to switch it manually when I walk in the house (so I usually don't).
I guess I could just tell my phone to "forget" the 2.4 network to fix this. On more thinking, maybe it's a coverage thing - it probably finds the 2.4 GHz network first. Lower frequencies penetrate walls better, right?
Click to expand...
Click to collapse
Correct. The 2.4 GHz network should travel further. Its all about that sweet sweet 5 GHz speed though! Mine connects to my Asus RT-AC66U router just fine.
doxy-LS said:
I have a dual band N router, and my One seems to "prefer" connecting to the 2.4 GHz network over the 5 GHz.
It will work fine on the 5GHz, but I have to switch it manually when I walk in the house (so I usually don't).
I guess I could just tell my phone to "forget" the 2.4 network to fix this. On more thinking, maybe it's a coverage thing - it probably finds the 2.4 GHz network first. Lower frequencies penetrate walls better, right?
Click to expand...
Click to collapse
You could always set it to 5ghz preferred. Mine connects to my netgear 5ghz ac router with no issues. Also if you have the same password for both frequencies it could just be connecting to that first.
Sent from my HTC One using Tapatalk 2
no preferred option?
godfirst said:
You could always set it to 5ghz preferred. Mine connects to my netgear 5ghz ac router with no issues. Also if you have the same password for both frequencies it could just be connecting to that first.
Sent from my HTC One using Tapatalk 2
Click to expand...
Click to collapse
I did check when sitting in my driveway - the 2.4 GHz network was still 2 "arcs" there & the 5 GHz was just a dot, so I think it is connecting to the first one it finds & sticking with it. In the Wi-Fi preferences, the "Wi-Fi frequency band" options are only Auto/5 GHz only/2.4 GHz only. No 'preferred' option - I'm running stock though - is there something different in the custom ROMs? I'm not afraid to root/ROM - I just haven't seen a good reason yet.
doxy-LS said:
I did check when sitting in my driveway - the 2.4 GHz network was still 2 "arcs" there & the 5 GHz was just a dot, so I think it is connecting to the first one it finds & sticking with it. In the Wi-Fi preferences, the "Wi-Fi frequency band" options are only Auto/5 GHz only/2.4 GHz only. No 'preferred' option - I'm running stock though - is there something different in the custom ROMs? I'm not afraid to root/ROM - I just haven't seen a good reason yet.
Click to expand...
Click to collapse
Use the only 5ghz only. There's a big difference with custom roms and stock att at the moment. There's new firmware etc. 2.4Ghz has more penetration through walls then 5Ghz. That's why you have more bars of one and not the other.
Sent from my HTC One using Tapatalk 2
godfirst said:
Use the only 5ghz only. There's a big difference with custom roms and stock att at the moment. There's new firmware etc. 2.4Ghz has more penetration through walls then 5Ghz. That's why you have more bars of one and not the other.
Sent from my HTC One using Tapatalk 2
Click to expand...
Click to collapse
Well I want to be able to use the 2.4 GHz networks when available, so I'll leave it on auto. I guess the speed isn't a huge deal when the wireless connection is so much faster than my internet connection.
And yes, I know that there are lots of differences between stock & custom ROMs (my last phone was a Nexus S & I was always changing ROMs). What I meant to ask was if there was a difference with that specific option.
wifi 2.4GHz connection problems
Welcome
I have silver One for 3 weeks now, but it was 2 weeks in service - they reinstalled software and returned phone. No change.
I can't connect to any 2.4 Ghz network (G/N) ending Authentication Error. Only 5GHz works.
I tried it with Netgreat WNDR4700 (Gargoyle custom software), CISCO access point @ work, also random WiFi open networks in shops/malls, etc. Other devices i know and have at home ( Samsung Note II, htc Sensation, Acer Iconia tab, Dell Latitude laptop) works fine. Just the One cosing problems.
I run stock rom, how can I turn on more verbose logging or see what is happening in the Operation system while connecting? I must prove to Regenersis Poland service that my phone does not work. Otherwise they will say phone works within parameters.

Wifi 2.4 Ghz and Bluetooth interference

Hello everyone.
As a proud owner of Xiaomi Redmi Note 3 Pro, I have a problem that lasts for month now.
I actually have a Mi Band that is always connected via bluetooth on my phone, and i need bluetooth to be always on. The problem is that when i am on the 2.4 ghz band on my wifi, sometimes the internet speed drops to 1 mbp or less, as well as an high ping and totally unstable connexion.
The fact is the problem is totally random and not related to a specific use of the bluetooth (except for controllers apparently ). In fact, where i use a bluetooth speaker as well, i do not have any problem. The problem is not specific to my phone, as i had the same problem with my previous phone ( a OnePlus X ) and with my Onda Tablet as well ( Wifi is unusable when i connect for example a bluetooth controller ).
The problem totally disappears when i use the 5 ghz band or when i desactivate the bluetooth (but for a reason, the 2.4 ghz band seems more "sensible" of interferences ). For notice, my rooter is a dual band (2,4 Ghz and 5 ghz).
I have tried to change the wifi channel on my router, it's the same problem as well. The problem lasts for months now and really consumed my patience, as he appears totally randomly and with no reason at all ( except for controllers ). I have searched for answers but cannot find any satisfactory response, only some clues related more or less with my problem. I can live somewell with the problem but actually i need solutions or at least clues of the origin of the problem
Phone : Xiaomi Redmi Note 3 Pro (Special "Global" Edition)
Rooter : Orange Livebox Play (France ISP)
Thank you in advance for your help
Edit : I Know that Bluetooth use the same frequency as the wifi, but normally the bluetooth has been made to "prevent" such interferences. The fact is that in my case these interferences occur without any clue of their origin
+1 ... have you found a fix?
I also have the problems with wifi and bluetooth, but on the bluetooth mouse instead of mi band. As soon as I start downloading something, mouse cursor starts to lag. As I have researched the problem, the only real solution was to change wifi to 5ghz like you mentioned. Unfortunately, my router doesn't have 5ghz band, so the workaround I found was to change the Channel selection on the router from Auto to some other channel. The problem didn't disappear, but it's not lagging as much anymore.
Also, why don't leave router on 5ghz?

Very slow WIFI even with Bluetooth OFF

10 inch version
I've read some reports saying that wifi speed takes a plunge when bluetooth is activated. But the thing is, I'm getting ridiculously slow speeds even with bluetooth OFF.
1Mb download on a 100Mb connection. And it doesn't happen to any other devices.
I'm desperate. Can you guys help? I've already tried changing the DNS but it had no improvement at all
Use inSSIDer and analyze your wifi frequencies. Make sure you're on the best channel and mode.
If you router support it, try both 2.4 and 5ghz. And at least for me, Bluetooth don't have to be connected to tablet to interfere with wifi, maybe you use some other Bluetooth gadgets at home?

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