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Flaky wifi - frequently needs disconnecting and reconnecting when using 5GHz wifi

Anyone else having issues with 5GHz wifi becoming unresponsive and needing to be turned off and immediately back on to kick it into working?
I've got Smart Network Switch and Download Booster (switch to mobile data if wifi is no good; use wifi + LTE) both switched off, so they shouldn't be a factor.. I even switched them back on and then off just to be sure that they were in fact off.
After a painful day spent trying to transfer data to the new phone, and installing all of my usual apps - having to disable and renable wifi at least 50 times throughout the day - I decided to switch from using my 5GHz wifi to 2.4GHz (same router), and it now seems fine. Switching back to 5, and I end up back with the same result - wifi will work fine for a while before stopping.
My Galaxy S5 has no issue using the 5GHz (and neither do any other devices I have), so it doesn't appear to be the router (Asus RT-AC87U) at fault unless there's just some compatibility issue with the S6.
Phone is G920I (Australian version, 64GB)

Kaibosh said:
Anyone else having issues with 5GHz wifi becoming unresponsive and needing to be turned off and immediately back on to kick it into working?
I've got Smart Network Switch and Download Booster (switch to mobile data if wifi is no good; use wifi + LTE) both switched off, so they shouldn't be a factor.. I even switched them back on and then off just to be sure that they were in fact off.
After a painful day spent trying to transfer data to the new phone, and installing all of my usual apps - having to disable and renable wifi at least 50 times throughout the day - I decided to switch from using my 5GHz wifi to 2.4GHz (same router), and it now seems fine. Switching back to 5, and I end up back with the same result - wifi will work fine for a while before stopping.
My Galaxy S5 has no issue using the 5GHz (and neither do any other devices I have), so it doesn't appear to be the router (Asus RT-AC87U) at fault unless there's just some compatibility issue with the S6.
Phone is G920I (Australian version, 64GB)
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Pretty sure this is a Android 5.0 problem. My nexus 6 has this problem as well. I have the AC68U. I am getting my GS6 tomorrow so I will see if it has the problem then. No problems on 2.4 like you.

Turn off the stupid Smart Network Switching.

noticed exactly the same thing, all other devices in the house are perfect, but the S6 loses connection now and then even when next to the router.

No issues using my 5ghz wifi network and the S6, have not had to disable/enable it once for any reason. Tmobile version.
You might try getting yours replaced, 50 times in a day is insane.

Thanks for the replies guys - oddly comforting to see that some others are having the same issue..
@byronhinson - Can I ask what brand of router you have (since both Prod1702 and I are having the issue with Asus routers + Lollipop)

I have exactly the same issue and on top of that the phone gets laggy when it losts the wifi!
However with classic wifi (not 5Ghz), it works fine all the time!
GS6 32Gb - Australian version as well

Same issue here. I hope they will fix it.

No issues here, 5ghz all day long well when I'm home
Sent from my SM-G925T using Tapatalk

I have a AC68U as well (or the T-Mobile 'Cellspot' version of the same), and my Galaxy S6 stays solidly connected to my 5ghz network all day.

Turn Off Smart Network Switching!
Problem solved..

meboy said:
Turn Off Smart Network Switching!
Problem solved..
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Click to collapse
Tried it already. Problem still there..

meboy said:
Turn Off Smart Network Switching!
Problem solved..
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Click to collapse
Mine was never on

Mine was fine last few days... today i have had to toggle the wifi 3 times... only after reading this damn thread last night though... damn karma.. or virus. Lol. Jk. Hope it can be fixed with a software update.

Comando156 said:
Mine was fine last few days... today i have had to toggle the wifi 3 times... only after reading this damn thread last night though..
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Click to collapse
Look at the silver lining - at least you didn't spend an entire day unawares and having to constantly switch wifi off and on to kick it back into gear, before *eventually* (after all of your transferring of data and installation of apps was done) thinking to switch to 2.4 and having it work as I did

Kaibosh said:
Anyone else having issues with 5GHz wifi becoming unresponsive and needing to be turned off and immediately back on to kick it into working?
I've got Smart Network Switch and Download Booster (switch to mobile data if wifi is no good; use wifi + LTE) both switched off, so they shouldn't be a factor.. I even switched them back on and then off just to be sure that they were in fact off.
After a painful day spent trying to transfer data to the new phone, and installing all of my usual apps - having to disable and renable wifi at least 50 times throughout the day - I decided to switch from using my 5GHz wifi to 2.4GHz (same router), and it now seems fine. Switching back to 5, and I end up back with the same result - wifi will work fine for a while before stopping.
My Galaxy S5 has no issue using the 5GHz (and neither do any other devices I have), so it doesn't appear to be the router (Asus RT-AC87U) at fault unless there's just some compatibility issue with the S6.
Phone is G920I (Australian version, 64GB)
Click to expand...
Click to collapse
I had the same problem and my router also is ASUS AC87U , wifi disconnected problem can solved after upgrade your router's firmware.
but there is a very serious problem I found.
on ASUS AC87U 5G wifi + Galaxy S6 , it drain battery very fast and get very high cpu usage at screen off.
it means the phone always keep running and can't get in sleep mode.
connected to another brand router it just be fine, very stable and no battery drain, So, I don't know this is ASUS's problem or Samsung's, that makes me very annoyed :crying:
hope someone can told me how to solve, thanks!

ryu2964 said:
I had the same problem and my router also is ASUS AC87U , wifi disconnected problem can solved after upgrade your router's firmware.
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Argh - trying to update the router firmware was the first thing that I tried when I found the issue.. Stupid bloody router kept on saying that I had the latest version, but checking the Asus website shows that there's a later version from 2nd April that requires a factory reset after installing - 2 of the things fixed are around wifi issues..
Updated and so far so good, but I guess a couple of time will tell. I'll keep an eye on battery/cpu usage and see how it goes..
Hopefully a router firmware update will fix the 5GHz issue for others that are having the issue too, at least for those with Asus routers.

For all of you who are having this issue, how is your battery life?

Just got my S6 today, same router as the OP (Asus RT-AC87U) and same problem on 5Ghz. Constantly disconnecting and reconnecting to Wifi.
2.4Ghz works fine
5Ghz work very solid on other devices so i'm not really sure what is the problem.
Galaxy tab S 105 and 8.4 works fine on the same router's 5Ghz network.

5GHz for dummies
I was having similar problems, where two Samsung devices in the house were both having difficulty remaining connected to the AC87U router for any length of time. Sometimes they would continually report Authentication Error but then connect happily after a reboot. Other times, they just would not connect.
In my case, it boiled down to dumb user error. I was using the same SSID for both bands, but had mistyped a character in the password for the 5GHz band and so was only able to connect to 2.4GHz band.
Perhaps this will save somebody else some trouble!

Moto X Play WiFi Performance Issues

Hey guys, got my Moto X Play delivered on Tuesday and so far I'm loving nearly every aspect of it, the camera and the large battery are definitely an improvement over the Moto X 2014 that I upgraded from. However, one issue that seems to keep bothering me is the wifi. Basically it seems to constantly drop the connection for no reason at all, my Internet at home is provided by virgin media and the virgin hub is in modem mode and I'm using a TRENDnet router to broadcast wifi. No other devices in the house seem to have any issues connecting with this setup.
The moto x play seems to connect fine to both the 5ghz and 2.4ghz networks but after a couple of minutes they just seem to loose signal. The wifi icon in the status bar doesn't change to imply that this has happened but chrome or Netflix, etc will just get very unresponsive. The phone has been restarted several times since I got it, I have also tried 'forgetting' the network and re-entering the password (on both 5 and 2.4ghz) and I have also tried the setting in lollipop to change the wifi type from auto to 5ghz only and to 2.4ghz only but nothing seems to have any effect. Does this sound like teething problems that could settle down to anyone else or does it sound like a faulty device?
Has anyone else had any issues with this phone?

I had these issues when I bought my tablet and thought maybe it was the tablet. Then I tested the tablet at my brother house who had different service provider and it worked fine.
So maybe give it a go at a resturant or a friends house and see what happens.
P.S I was with Virgin Media aswell when I had these issues no idea if they are connected.
Sent from S3 via Tapatalk App.

Thanks Geordie Affy, i'm actually going to be at my parents this weekend so i'll give it a go on there and see if the situation improves
Hoping it settles down as i really don't want to go to the effort of returning it to amazon

Its most likely your router not your phone causing these issues.

No problem ... keep us posted [emoji106]
Sent from S3 via Tapatalk App.

Ok so, bit of an update.
We had a visit to the mother in laws last night and i tested this issue with their wifi (provided by BT, using all original BT equipment) and still got the same issue. I'm concerned now that this is a problem with the handset.
Any other thoughts on what could be causing it or what i could try to cure it?
Another bit of info i've discovered recently is that even on 5ghz when connected to wifi the phone really seems to struggle to multitask (from a web perspective) i.e. if i'm updating apps on the play store i can't successfully browse the web on chrome and vice versa.

jhaedee said:
Ok so, bit of an update.
We had a visit to the mother in laws last night and i tested this issue with their wifi (provided by BT, using all original BT equipment) and still got the same issue. I'm concerned now that this is a problem with the handset.
Any other thoughts on what could be causing it or what i could try to cure it?
Another bit of info i've discovered recently is that even on 5ghz when connected to wifi the phone really seems to struggle to multitask (from a web perspective) i.e. if i'm updating apps on the play store i can't successfully browse the web on chrome and vice versa.
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I want to confirm that I have wifi issues too. Just received my device and wifi it's not working. I never had any issues with other devices in my house and I have lots of them. Phone seems to be scanning indefinitely.
Have a look if you have the same exclamation mark over the wifi icon?!
Any updates on your device so far?

No, mine is even more frustrating in that the icon remains the same whether I'm connected or not. I've spoken to a guy at Motorola on live chat this morning and as I'd done all the things he had suggested already he recommended doing a factory reset. At least that's one of the big advantages of this phone is that I can backup all my stuff to my sd card and eject it before reseting. Should make it a whole lot easier.

The only thing that seems to have made any kind of difference, and really, it could just be coincidence (as I don't know how these things work at a scientific level) but I reset the router this morning I. E. Turned it off waited a minute or two and turned it back on again and that seemed to improve things slightly. In fact I thought it had cured it as this morning I was unable to even get through one song on Spotify but since the reset I managed to get through an album and a b8t before the connection borked. Since then the signal had dropped out once or twice but not on the same scale as before.
Debating whether to bother with the factory reset now...

I somehow got my wifi working but now I am browsing and whole browsing experience no matter what website I am in is stuttering and lagging .Simple browsing in Google Play store remains the same jerky ,same thing observed on facebook app.
Even my friends Sony M works much smoother. I have tried both H+ 4g and wifi performance very inconsistent. Don't know what to think

Wifi is definitely slower on my Moto X Play than it was on my Galaxy S6. Just going by memory (which could be wrong), I want to say that my LG G3 and Galaxy S5 had better wifi than the X Play too. I only had it for half a day, but the 3rd gen Moto G even seemed better.
I do have an odd issue with the wifi that is annoying but easily fixable (thankfully). Every time the phone boots up, I get the exclamation mark over the wifi icon and it just runs off my mobile data. If I toggle the wifi off and back on, then it connects properly to the wifi and no more exclamation mark. I have to do this every time I restart the phone though.
Hopefully an update will fix this.

How odd it is . I was playing with Moto G 3 gen and it was smoother that Moto X play.

What I am now finding strange is at my parents the wifi has seemed fine! However amazon are already sending me a replacement unit today. Not sure what to do now.

jhaedee said:
What I am now finding strange is at my parents the wifi has seemed fine! However amazon are already sending me a replacement unit today. Not sure what to do now.
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Yeah I thought it would be the case. Had issues like this but never figured out why it happened tbh. Fortunarlely after a couple of months we changed our internet to BT and worked a treat (Minus BT going down haha)
Sent from S3 via Tapatalk App.

I've had issues with this as well. Appears to be connected but no data transmits while every other device works fine. Only happening on one old router not all. May have something to do with Motorola dropping the "ac" WiFi standard on this phone. More annoying is the phone being slow to pick up a cellular signal after leaving WiFi. I've had this happen often and for as long as 5 minutes.

I got my Motorola x play about two weeks and I've just noticed a few Wi-Fi issues. I'm connecting it too the super hub router provided by virgin media on the 5ghz signal and it was fine when I noticed if I held the phone by the top half in the palm of my hand instead of the bottom half, the signal strength shown by the icon in the top right hand corner would drop by half. Is anyone aware if the phones Wi-Fi aerial is on the upper reaches of the phone?

I too have noticed this. Thought it was all in my head which is why I hadn't mentioned it previously lol.

I haven't so far been able to replicate the issues you guys are facing with WiFi. Performance seems to be in general at least on par with my late Galaxy S4.
Sent from my XT1562 using XDA Free mobile app

This could also be a Android 5.x issue. I'm facing similar problems on my LG G2 running SlimLP. WiFi and also cellular seems to be dropping for no apparent reason and I have to manually reconnect. Interestingly though, my Nexus 7 WiFi 2013 doesn't have these issues running UberCM 5.1.1.

other problems with WiFi.
I have this strange problems. See if someone else has the same.
I used googled maps for GPS me to destination. When I am driving WiFi cut off and the phone use data. When I am arrive at destination. I go to McDonald. The phones can't connect to free WiFi at McDonald's. Even this is a saved network. I turn off then on the WIFI, still not connect.

Warranty phone Wi-Fi also suffers due to Bluetooth

So this must be inherent with the phone. I can't be alone in this right? The Wi-Fi loses connection due to Bluetooth being on at the same time. At least I've never witnessed any issues with bt off, and I've had this phone now over a year. Maybe it's not so specific to this phone? Well I don't remember it ever happening like this with previous phones. works most of the time but not enough. I have some Wi-Fi reconnect widget I use but it's still annoying obviously. Anyone have a solution?

juntjoo said:
So this must be inherent with the phone. I can't be alone in this right? The Wi-Fi loses connection due to Bluetooth being on at the same time. At least I've never witnessed any issues with bt off, and I've had this phone now over a year. Maybe it's not so specific to this phone? Well I don't remember it ever happening like this with previous phones. works most of the time but not enough. I have some Wi-Fi reconnect widget I use but it's still annoying obviously. Anyone have a solution?
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My G5 haven't had issues with WiFi and Bluetooth being on together. Try WiFi connection that is 5.0 GHz instead of 2.4GHz. Once I had tried 3 HTC 10 phones and when I was connecting to 2.4GHz network then the phone had issues with internet when Bluetooth was on. Once I did some troubleshooting, I was able to solve the issue by connecting to my other band which was 5.0 GHz and that one never gave me any issues.

Ah thanks. That's probably it. But I don't have a better modem to test with. Ill keep that in mind though if I decide to upgrade

If you're still watching this thread, and are still having problems, install the Wifi Analytics Tool and see which channel is the farthest from any other signals (neighbors), then connect to the router (or modem/router if that's what you have) and change the channel to that one. The stronger wifi signal may get through even with Bluetooth making noise.

Major wifi issue in pixel

Everything is smooth and perfect except Wifi.
I can found close wifi networks (Mobile hotspots created by other phones) but if I try to connect it just saves them, cannot connect to any wifi networks.
And the strength is too low. It is unable to find my room's wifi ...!!
So I am just totally unable to use wifi in my Pixel :/
Also I turn on Hotspot on my Pixel, it turns on but I cannot find it from other devices.
Also upgraded from 8.1.0 to 9.0 but still same issue.
Without Wifi its so miserable experience Any Solution?????

Yeah, same issue. It's a hardware thing. If you've dropped your phone either the cable came loose or the PCB board is off. I threw mine before (long story) but can't use wifi nor Bluetooth without being close to what I'm connected to.
I just don't feel like fixing it considering the pixel can break by repair. Plus, my 6p is my DD anyway

Dang, I gave my sister this phone and this problem just appeared. Time to look for a new phone for her.

Ok, being real for a second, this worked and I know it is a VERY BAD workaround but can help in a pinch.
I bought a refurb pixel on woot. Took a while to get it because it was sent to a friend's PO box and then brought to mexico, ergo no warranty.
Unboxed it and had this exact same issue; little to no signal on very few wifi hotspots and just "saving"
Seeing as this might be hardware related as @creep138 mentioned, I tried the following:
PRESS considerably hard on the point that the antenna connector should be.
After a couple of seconds of force and massaging, wifi came on and connected.
I KNOW this is a bad idea, I KNOW this might cause several issues on the long run, but if you have it sitting in a drawer doing nothing because of this issue, give it a try.
For reference this was done on a Verizon Black Pixel. The small one. and the point to apply pressure to is about half an inch below the camera and flash module.
Hope this helps

minhaz.sourav said:
Everything is smooth and perfect except Wifi.
I can found close wifi networks (Mobile hotspots created by other phones) but if I try to connect it just saves them, cannot connect to any wifi networks.
And the strength is too low. It is unable to find my room's wifi ...!!
So I am just totally unable to use wifi in my Pixel :/
Also I turn on Hotspot on my Pixel, it turns on but I cannot find it from other devices.
Also upgraded from 8.1.0 to 9.0 but still same issue.
Without Wifi its so miserable experience Any Solution?????
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Status update:
After doing what I have already described, that helped to connect to the wifi at my workplace. Nonetheless I didn't have suck luck with my home wifi.
After reading here and there, some users reported the device connecting to 5Ghz wifi no problem. My work is indeed 5Ghz and my home is 2.4
After unpacking and installing a 5Ghz capable router, the pixel connected no problem to it (after applying the aforementioned pressure)
Hope this helps

S10e WiFi connectivity issue

Hello all!
I have a S10e, running stock Android 10. The wifi at my house constantly disconnects and reconnects, rendering my phone as virtually useless, as it switches between my mobile network and wifi. I have tried all of the trouble shooting I've found online, just short of a full backup/master reset. I'm trying to avoid that.
Does anyone have any idea what may be causing this? Better yet, how can I fix it? I'm rather annoyed, as I've had several Samsung Galaxy phones that have had minor issues, but nothing as annoying as this. I'm about to buy another model phone.
Thanks in advance

settlethestorm said:
Hello all!
I have a S10e, running stock Android 10. The wifi at my house constantly disconnects and reconnects, rendering my phone as virtually useless, as it switches between my mobile network and wifi. I have tried all of the trouble shooting I've found online, just short of a full backup/master reset. I'm trying to avoid that.
Does anyone have any idea what may be causing this? Better yet, how can I fix it? I'm rather annoyed, as I've had several Samsung Galaxy phones that have had minor issues, but nothing as annoying as this. I'm about to buy another model phone.
Thanks in advance
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Click to collapse
Hi, I have the S10e G970F_MMI - Singapore Snapdragon. Similar issues with wifi and bluetooth turning off immediately after update. Got one message from Wi-Fi control history that said Google Play services turned off wi-fi. I tried disconnecting Play services but that did not help however I am suspicious that it might also have something to do with Bixby Routines. Tried Samsung but no help as my phone is only 13 months old and 1 month out of warranty and I am not in Singapore but stuck in UK. Like you, I am a long time Samsung client with phones, tablets and TV's but I have now lost confidence in them. I tried factory reset and reflashing the custom ROM but no luck. I do hope that you can resolve your wi-fi issue and have a wonderful New Year.

Apparently, Samsung admitted the S10 series suffers from this issue. I noticed it on mine, just in the last month or two, disconnecting intermittently roughly every 30 minutes. I thought it might have been my router, but I realized it's definitely my phone (S10e US snapdragon).
Nothing I tried fixed it. I did disable "wi-fi power saving mode" and wifi auto connect (I have tasker auto re-connect wifi when it disconnects).
I do have "wi-fi san throttling" enabled in developer options, which shouldn't have anything to do with this. HOWEVER, you might try "wi-fi safe mode" under developer options and see if that helps keep it more persistent.
One other suggestion, though it shouldn't matter, is to try assigning a specific IP address to your phone (do this from your router settings, not your phone). And you can search for other solutions online to cut down on radio interference on your home network. Other devices and neighbors might be disrupting the router signal strength, possibly dropping it below a level that causes your phone to drop wifi.

I got the same problem before, used an Asus router. I changed to a Qualcomm chip router and its fixed. Try a different router?

androidfanforever said:
I got the same problem before, used an Asus router. I changed to a Qualcomm chip router and its fixed. Try a different router?
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Unfortunately I cannot, as the router I have is from my internet provider. I would have to run that to another router and at that point it's just a waste of money. Thank you for the info though! If I get annoyed enough I may buy a cheap router to see if it fixes the problem.

androidfanforever said:
I got the same problem before, used an Asus router. I changed to a Qualcomm chip router and its fixed. Try a different router?
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Click to collapse
My Exynos stopped disconnecting after installing OpenWrt on my Qualcomm router