Loss of 5ghz wifi band with uptime - Galaxy S6 Active

I am on the latest official firmware 6.0.1 PK5 and I've noticed over the past 2 weeks that as my phone's uptime increases, it loses the ability to see any network on the 5ghz wifi band. If I reboot, I can see the 5ghz band again for a short period of time but that ability goes away after several hours.
My next step is to do a factory reset but I wanted to see if anyone else had a problem before doing so. I was hoping to wait it out until Nougat officially releases to wipe but IMO this feels more like a hardware failing than a software issue.
Has anyone else had this issue?

Related

[Q] Can't Connect to 2.4Ghz networks

Hi Friends,
I've been experiencing some really weird behaviour on my Moto X 1st gen.
My Phone is not Rooted, not flashed... It's all stock running the latest software (Android 4.4.2 Kit Kat) for a while.
Recently I've noticed my Phone stopped connecting to my Wifi Network. It can search for networks and find them, but as soon as I try to connect It to the networks, they become out of range on the list or simply "Saved" and not connected. The Networks WONT connect at all... never ever.
Doing some tests tho, I noticed that my Moto X fails to connect to all 2.4Ghz Networks... It can only connect to 5Ghz ones. I can't figure out why. Tried Clearing Cache Partition, Data Wipe from inside Android and from Bootloader menu... all with no success.
What I come here to ask is: Are there 2 Wifi Radios on the Phone, one of 2,4Ghz frequency and one 5Ghz Frequency? Are there Two antennas and maybe one of them got broken? Do you guys think that re-flashing a Radio Firmware may fix the problem?
Many Wifi Networks run under the 2.4Ghz band. So It is quite important to me to have It working.
I'm asking if I should bother trying because Flashing Radios and Kernels has It's risks, and this phone is my Daily Driver, so I come to you for help or new ideas on how to solve It.
Thanks in advance.
Look in the advanced Wifi settings (three dot menu at lower right when in the network list) and see if the frequency band is set to Auto. If it is set to 5ghz. Putting it on Auto is probably your best bet.
fury683 said:
Look in the advanced Wifi settings (three dot menu at lower right when in the network list) and see if the frequency band is set to Auto. If it is set to 5ghz. Putting it on Auto is probably your best bet.
Click to expand...
Click to collapse
I checked every configuration... I even discovered that the phone doesnt connect specifically to 2.4Ghz networks by switching It first to 2.4Ghz-Only to filter the 5Ghz Networks out and see that no Network connected and then I switched to 5Ghz to check and see that 5Ghz networks do work.
My guess is that Radio Firmware got this strange behaviour after I installed Netgear WiFi Network Analytics App(It started happening after that, afterall)... It might have changed some configuration on the Firmware that I do not have access through the System UI, and is not OS-wise, because not even factory reset worked to fi this... so Only thing that I didnt try yet was a Radio Re-Flash.
Maybe I'll just try It. Or my WiFI Radio just broke.
Hey just replaced my Netgear R6300 with the Netgear R7000 and I am running into the same issue.
My Moto X and my Razr Maxx HD have the same issue seeing the 2.4Ghz, but see the 5Ghz just fine.
All other devices in the household see the 2.4Ghz fine, it just seem's to be the phone's.
Any ideas? I tried two different R7000, and working with Netgear, but no dice.
It's not a biggy, as I have verified it only impact's the phones, and I can set them to 5Ghz anyways.
I was just wondering if anybody has seen this too.
Very odd that it's two different devices. Are you certain that the network is using both bands?
I have the identical problem described in this thread.
Only difference not yet noted is that maybe 1 time out of 50 it will connect to the 2.4ghz network, and stay connected for a few hours. Then it will go back to not working at all for days, weeks.
I've been trying to fix this for months. More than a few people seem to be having the same problem. I've tried every combination of router/phone setting imaginable. Don't think there's an easy fix to this other than new phone or new router.
Have the same problem, 5ghz works fine but 2.4ghz don't works for weeks. it started this spring. Anybody fond something that helps?
Mathieu2k4 said:
Have the same problem, 5ghz works fine but 2.4ghz don't works for weeks. it started this spring. Anybody fond something that helps?
Click to expand...
Click to collapse
Update: I've recently been in deep on this problem with Motorola technical support. Several hours on the phone with them, explaining the issue over and over, bug reports, email exchanges, etc etc etc. Tier 4.
At the end of the day, company policy rules and they wont look after me because my phone is outside of the 1 year warranty. I'm still paying for this phone on contract. Not cool. They won't see another dime from me!
I have the same issue on my Moto X XT1097 Lollipop 5.1
:crying:
luc23 said:
Update: I've recently been in deep on this problem with Motorola technical support. Several hours on the phone with them, explaining the issue over and over, bug reports, email exchanges, etc etc etc. Tier 4.
At the end of the day, company policy rules and they wont look after me because my phone is outside of the 1 year warranty. I'm still paying for this phone on contract. Not cool. They won't see another dime from me!
Click to expand...
Click to collapse
Same issue. If I reboot the phone it will connect to a 2.4 ghz network for about 5 minutes... then unable to see the network.
Exact Same Issue, Xiaomi mi5s, it started after i dropped it in water and took it right back, opened in full and dryed everything, the phone is working now in perfect condition except for this issue, i have to gess is a harware problem

WiFi dropping randomly

None of my devices has ever had dropping problems with the WiFi (iPhone, iPad, S6 Edge+, notebook and a wifi extender). But since I bought the S2, it is randomly dropping connection, with no pattern.
Which model did you buy?
SM-T719
It's the latest 8" with qualcomm
Yes I'm having the same issue in the T713 model but not in the T813 model, both are th Qualcomm model
Im having the same issue with mine. I called samsung support and they were no help.
Same issue with sm-t713
Sent from my SM-T713 using Tapatalk
Same issue with SM-T813, found a temporary fix.
Just replaced my SM-T810 with a SM-T813, and ran in same wifi drop issue. My girlfriend and her SM-T813 ran in the same issue too. It happen randomly from 3-4 times per hour to one time in 2 hours. I foud it only occurs on 2.4ghz network connected in N. It happen to me on 3 differents routers, DIR-868L REV B 2.04, DIR-868L Advanded Tomato, DIR-628, and Asus RT-AC68U stock with latest firmware. If i configure the 2.4ghz band to G only, no issue, also, the 5ghz band got no issues at all. Hope this help your issues while waiting for a fix from Samsung.
Thanks for the tip. I can confirm that 5ghz wifi works perfectly. Hopefully samsung will fix soon.
ndompierre said:
Just replaced my SM-T810 with a SM-T813, and ran in same wifi drop issue. My girlfriend and her SM-T813 ran in the same issue too. It happen randomly from 3-4 times per hour to one time in 2 hours. I foud it only occurs on 2.4ghz network connected in N. It happen to me on 3 differents routers, DIR-868L REV B 2.04, DIR-868L Advanded Tomato, DIR-628, and Asus RT-AC68U stock with latest firmware. If i configure the 2.4ghz band to G only, no issue, also, the 5ghz band got no issues at all. Hope this help your issues while waiting for a fix from Samsung.
Click to expand...
Click to collapse
Valid information, ndompierre!!
I´m situated in Germany and bought a S2 8.0 (SM-T710, Android 5.0.2) last week.
One of my use cases is watching movies which are stored on my NAS. With my "old" Nexus 7 (2013) everything worked like a charm.
But with the S2 I ran into the issue that the movies stucked once in a while.
At first I thought it had something to do with the apps I am using, BSPlayer and MX Player Pro (which work fine with the Nexus).
I even downloaded VLC Player but the same behaviour occured.
Then I downloaded the movie locally to my Tab and deactivated WiFi. Bingo..played without any hiccup. Proof enough that everything is fine with the apps.
So I googled a bit and came across this WiFi issue others also have. After I followed your proposal and changed the 2.4GHz band in my router from option "802.11n+b+g" to "802.11b+g" everything works fine again. No dropout during the whole streamed movie.
So I hope, too, that Samsung will come up with a WiFi fix soon.
Interesting. I've noticed that since updating to MM, my T810 seems to frequently switch to my other wifi networks on me. My preferred SSID is 2.4GHz N mode. I never catch it happening when I'm using the tablet, but after going to sleep and waking it up it literally seems always to be on the "wrong" network if I've previously switched it to the "right" one (not sure if it hops off the other 2.4GHz ones as well). I'll stick wiht 5GHz for the time being!
Saw Spotify dropping out a few times this weekend while connected to a wifi Hotspot. Haven't had a chance to test it at home yet. T817W model running Marshmallow.
Sent from my SM-N930W8 using Tapatalk
I bought the T719 LTE 8.0 inch Version last week and also hab wifi connection problems, but only when in airplane mode. My Router is am fritzbox 7490 at 5ghz. Currently without any reason the wifi connection is stable. When in LTE mode the wifi was always stable.
I have the same problem too. (T719 LTE model) I was wondering would the radio mode consume battery faster instead of airplane mode?
P.S. I still have problem but i am on airplane mode. Have not tried yet radio mode
disconnecting wifi
I have the t819 bought it last week constantly dropping wifi had the s3 tablet before never happened also have ipad and does not happen. Sent samsung an email but still waiting for reply
My T813 does this, but only on battery when optimization is on. When it's on the charger, or I turn power optimization off, it stays connected pretty solidly. I suspect a fault in the power management.
It is kind of annoying, as I have some clients that have to be restarted every time the network drops.
jshamlet said:
My T813 does this, but only on battery when optimization is on. When it's on the charger, or I turn power optimization off, it stays connected pretty solidly. I suspect a fault in the power management.
It is kind of annoying, as I have some clients that have to be restarted every time the network drops.
Click to expand...
Click to collapse
How do you turn optimization off? Battery optimization can be turned off on my tablet, but it has to be done app by app (one at a time)

WIFI slow / disconnecting

Hi
I received my 3T yesterday. I am having issues with WIFI
WiFi network drops frequently and the mobile data is used for some time and then WIFI is connected again. See attached .. This happens even when moving between rooms of my house
I think this happens when the mobile wifi changes from 5GHZ to 2.4GHZ when I move away from router
I have updated to OxygenOS 3.5.4 as soon as I received the mobile
The signal strength of the 3T is also very low
I have a 2 year old moto X 2014 and the moto beats the 3T at every place in my house
The signal strength and the wifi speed both are better in moto X
I have checked at various places
I have wiped the cache. Tried changing 2.5GHz to 5GHz
Changed Channels.. Tried all the things that I could find on the internet
But still problems
So is this a hardware problem and should I ask for a replacement? Or is this some Software bug which can be resolved
My router is ASUS RTN66U and a lot of other devices work seamlessly on that router and hence pls dont suggest to change the router
Awaiting replies
Regards
Ajjaykummar
I think this is a bug related to 3.5.4. On 3.5.3 my WiFi worked a lot better, but LTE Advanced is faster on 3.5.4. You can try a custom rom or downgrading, there's also a leaked OxygenOS 4 rom out.
Do you have wifi issues now when u have 3.5.4
I don't want to install new Roms. As I may have to return it in case this is a faulty piece
I'm having the exact same problem. I stream a lot. Very annoying when music video or gaming gets disconnect so often. My Galaxy Note 4, & s6 works fine.
Iajay said:
Do you have wifi issues now when u have 3.5.4
I don't want to install new Roms. As I may have to return it in case this is a faulty piece
Click to expand...
Click to collapse
yes, it started on 3.5.4.
here is a screencap of the issue
You can see in the screen cap that the mobile is connected to ASUS5 (5GHZ)
Then as I move away from the router the signal weakens and then the wifi disconnects .. and then it connects to ASUS (2.4GHZ)
Earlier it was connecting to ASUS but with a exclamation mark (without internet).. I waited for 15 minutes but it did not connect
Then I would connect if I switch off and on the wifi toggle
After that I did a factory reset and now you can see the screencap
It connects after a minor delay.. So is this alright
My other mobile - Moto X 2014 simply switches instantly from 5GHz to 2.4GHz and vice versa.. not even half of second is taken on moto x
Give the device a static IP use 2.4 network as it's more of a long range band. I tend to use the 5 band for stationary stuff. My WiFi works fine but all my home devices have a static IP.
This are the things that I did
1) Factory reset
2)Use Legacy DHCP client (under Developer options)
3)Disable Smart Wifi switcher (Advanced Wifi setting)
4)Static IP
This seems to solve the disconnection issue .. I still feel the wifi signal is weak compared to my other devices
Hope this helps someone facing the problem
regards
I had the same Problem on OOS 3.5.3/3.5.4/4.0 at the OnePlus 3T.
I tried every Solution on the internet and nothing worked for me.
But after i looked into my Router-Setup i saw the DHCP Section where i selected 'Renew DHCP every Day'
>>> Screenshot what i mean - imgur.com/KakQX3i.png <<<
After that it works perfect. No connection-issues anymore.
mine is already one day..
I thought it was resolved... but again I noticed slow wifi speeds
thinking of replacement
haven't had the phone long enough to experience disconnects but wifi is definitely slow...
I have a 200mbps connection, getting 160mbps on desktop with LAN cable, 110mbps on my OPO, only 50mbps on my OP3T....
all tested through speedtest with the same server location.
OP3T is chinese version flashed with oxygenos 4.0.1
edit: later tested again with OP3T getting up to 90mbps but still 20 less than the OPO
I have same issus like lajay. The Galaxy S7 from my wife works perfekt in the same Network!

Anyone notices 5GHz WiFi strength issue since updated to Android 10?

I'm not sure if there's only me facing the issue with 5GHz Wifi strength which is often get weak even very close to the router.
So do you find this happening with you?
I don't know if Android 10 causes the issue or just my router goes bad itself.
Please note that my A2 already runs on Android 10 with the latest patch (Jan 5) that released 2-3 days ago.
Thanks
Hello, i had the same problem and a factory reset resolved it.

Wifi constantly dropping after 58.1.A.5.441 update [w/ workaround]

My XQ-AT52 (dual sim HK) became unusable after recent 58.1.A.5.441 update. Wifi constantly connects - disconnects every few seconds, and after several tries, it gives up then nothing would show up in wifi list. Tried airplane mode/reboot/factory reset/software repair and no luck.
After hours of desperately poking around settings and google, a weird workaround was found: turn on hotspot first, then connect wifi like usual. It keeps connected and fully working until the second hotspot gets turned off. I guess maybe an overly aggressive battery-saving rule was introduced in the update, wrongfully shuts down normal wifi connections and got overridden by hotspot. But I can't find any proof in logcat.
Hopefully this will be fixed in the next update.
Edit:
Upgrade to 58.1.5.474 did NOT fix this problem.
Upgrade to 58.1.5.530 and problem fixed.
I'm having a related issue with Xperia 5 II (XQ-AS52 Dual), seemingly since the same update 58.1.A.5.441.
For me the problem is that 5GHz networks work fine for around one day, then they get disconnected for no apparent reason. At this point, 5GHz networks won't show up in the list of Wifi networks until I restart the phone. Then I can see and connect to 5GHz again but the same problem re-occurs after around one day. Really annoying !
No issue though with the 2.4GHz networks apparently.
I wanted to downgrade to the previous firmware to confirm my suspicion, but can't find it on the web for my region (EU).

Categories

Resources