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Galaxy Tab 'forgets' to reconnect to wifi?

I've notice a slight issue with my Tab. Sometimes, when it's been left sleeping for a while it 'forgets' to go back to wifi and stays on 3G connectivity, even though I'm sitting right next to the wlan router. If I check the wifi settings, the network is listed as 'out of range'. If I turn off wifi and then back on again, it connects without any trouble.
Has anyone else noticed this behaviour?

This is most certainly a router issue. The simplest fix is to reserve ip up for the tab and use fixed up settings.
I do this with all my LAN devices anyway because it adds a little security, as well as better interconnectivity.
But really you should investigate the router.

Somehow I doubt that. I'm using DD-WRT running on the classic LinkSys WRT54G, a combo that is widely famed for it reliability. I also have the router set up to serve a fixed IP to the Galaxy Tab, determined by the MAC address of the Tabs wireless interface.
I'm also running quite a few other wifi devices with the router, including three other android devices (G1, milestone, nook), and none of them show the same behavior.

I see... how many of your other devices use a dual band revision n radio? In my experience this can be a headache, even for custom firmware.

None, as far as I know. I'm not entirely sure about my wifes Motorola Milestone, but I'm pretty sure the G1 and the nook use bog standard 802.11g. I think you're right that this might be the problem. Any ideas how to improve that? It's not really a problem, just a slight blemish on the otherwise awesome experience.

This is well known android behavior making wi-fi sleep to preserver battery.
There are some mods to keep it on when sleeping.

Khisha said:
This is well known android behavior making wi-fi sleep to preserver battery.
There are some mods to keep it on when sleeping.
Click to expand...
Click to collapse
Yes, and there's nothing wrong with that. I certainly don't want wifi on all the time, I just want it to reconnect when it wakes up.

Ill look into your router tomorrow, but atm I'd say there wont be much you can do other than force g only on the router. This will stop the tab from sending crc/ plcp overhead on both bands. Crazy as it sounds, the tabs radio is actually interfering with itself in this scenario.

I just replaced my HTC HD2 with the Samsung Galaxy Tab and have the exact same problem. The HD easily picked up my work and home WiFi when I moved between them, but the Tab 'forgets' to reconnect after standby.

I'm having this problem too. Every morning I need to turn off the wifi, then immediately turn it back on, before it will reconnect. This is with an Asus WL520GC running DD-WRT.

Yes, seems to be a router/device compatibility issue.
My tab works fine in my uni network (and it has quite a few dark spots), all of my friend's networks but it intermittingly fails to reconnect to my home wlan. I have a sky router (sagem actually).
Sent from my HTC Vision using Tapatalk

I have seen this on various routers before and encountered it again last night.
There is a discussion on the cause here:
http://forum.xda-developers.com/showthread.php?t=839367&highlight=connect+wifi&page=3
It is due to the lease expiring from the access point and the device requesting the old IP with first sending a discovery message.
One work around - not the best - is to reboot the router. Then the Tab seems able to connect. Also I think if you connect ofter to the router you might not see this as the device will ask for a new lease.
Another - from the above referenced post - is to create a DHCP reservation for the Tab. This will ensure it gets the same IP address every time. I made this change to my router - so we will see.
Hope this helps.

Samsung Galaxy tab won't connect to WEP wireless
I am trying to get my Galaxy tab to connect to my HTC HD2 that is set up as a wi-fi hotspot.
My galaxy tab will connect to all WPA/WP2 networks but not the WEP. Please help.

mine does the same on a SMC Gateway (SMC8014WN) aswell as a D-Link Router (DIR-665)

I am going nuts here because of the same problem. Tab worked flawlessly for the last 4 months, found any router and had no wifi problems until recently. I have a D-Link DGL-4500 gaming router, and my dsl modem router also has a wifi connection. I suspect from the new firmware. Mine is a Euro model. I dont know why I upgraded from JK5 to JMG stock firmware, and wifi issues started. D-link's logs reports that it receives a deauth from the device and the connection ends... and never revives. Sometimes it happens 3-4 times in an hour, sometimes it stays connected for hours. I tried everything, static IP, delete dhcp list, etc. I have reset the device twice to factory defaults. Even then it disconnected the first minute I turned it on and set the wifi. So it should be a firmware issue. I realize that the wifi signal is also weaker now compared to the previous firmware. Congrats SAMSUNG! The Tab is consuming my data plan even when I am home. And I wonder how wifi only Tab is going to handle this problem. DOES ANYONE KNOW IF WE CAN DOWNGRADE FROM JMG?? Help is appreciated.

my tab does the same thing (so does my x10). But when I open my browser, or anything that needs wifi, it reconnects automatically, however the browser usually needs to be refreshed (retry).

elorimer said:
I'm having this problem too. Every morning I need to turn off the wifi, then immediately turn it back on, before it will reconnect. This is with an Asus WL520GC running DD-WRT.
Click to expand...
Click to collapse
exactly the same behaviour. Every morning, I'm connected to my router but nothing works. Turn-OFF->ON and it works again

I should have noticed Roto's entering line. See: http://forum.xda-developers.com/showthread.php?t=939360.
Since JMG has wifi isuues, I jumped onto JMI !

[Q] Anyone else having WiFi issues with their HTC One?

Hey guys,
So I just got my brand-spanking new HTC One today. I upgraded from the Evo LTE, and I already love it.
But there's one thing that has been really frustrating to me for the few hours I've owned this phone... It has major WiFi issues.
My One can see the WiFi network, can connect to it, but wont give an internet connection! It's so frustrating!
My Evo LTE, being connected to the same WiFi network, connects to the internet with no problem at all.
A temporary fix is to turn off the WiFi radio, then turn it back on. As a result, I would connect to the internet for a minute or so, then it would disconnect from the internet (it's still connected to my WiFi network, and it recognizes it, and it gives no messages about the connection suggesting that something is wrong with my router/connection).
I changed the frequency bands, but they all have the same issue. I have enabled "Best Wi-Fi performance" and "Keep Wi-Fi on during sleep."
I've also reseted my router numerous times... No luck.
Is anyone else having this issue, or did I just get a lemon? Can anyone think of a possible solution?
Thanks!

no issues here with my one and my netgear r6300 ac router.

Wi-Fi has been fantastic for me on my one. My evo LTE if you remember had the issue of wi-fi just shutting off after the phone was asleep. That was fixed in an update but even after that was fixed my evoLTE would show it's connected but data would not work. So I would have to toggle it on & off. I also had an issue with my sense widget not working and getting stuck. I was really starting to dislike the evoLTE because of it since your notifications quit working if your wi-fi was not connected correctly. I put up with crappy wi-fi for almost a year, mainly because I knew if I took it into Sprint they would say everything works perfect I just didn't wanna deal with. I know it's extremely frustrating to not have your wi-fi work correctly. My advice see if you can get a hold of another HTC one to test side by side. If it's a hardware issue you should get it swapped. You could also try hard resetting. I use a a WRT54GL with tomato at home and a Asus N66U at work, both have performed awesome with my one.

I have _exactly_ the same issue with my One. I have no idea if it's a software or a hardware problem. Tried a hard reset just yet, but it didn't seem to make a difference.
Really frustrating indeed, since the One is not very good available in the Netherlands yet, so if I return it, I might have to wait a few weeks to get a new one. I've tried it with at least 6 completely different WiFi networks, but the problem occurs with every one of them.

Only issue I have had with the WiFi thus far is it doesn't seem to have the pickup up range compared to my other phones and tablets.

WiFi on mine is insanely crazy! Picks up signal way better than any other device I've ever owned. Might be the kernel I'm running. Try it out! Look in the original dev thread.
Sent From My HTC One, On The Now Network From Sprint!

thecreative121 said:
Only issue I have had with the WiFi thus far is it doesn't seem to have the pickup up range compared to my other phones and tablets.
Click to expand...
Click to collapse
I've noticed this as well. Areas in my office where I could get a decent wifi signal with my 3D I am dropping wifi completely with the One.

Router brand/model? Firmware version? WEP/WPA/Open? 2.4Ghz, 5Ghz or dual band? Channel (more relevant on 2.4 than 5)?
Does your phone get a valid IP? Check on the phone itself then the router under DHCP (assuming normal configuration, IP should begin 192.168.*.*)
Can you ping any internal node (ie your router) or external node (ie google.com or the IP to google)?
If your router has WEP/WPA enabled, switch it to Open solely for testing the connection.
Sent from my HTCONE using xda app-developers app

StrikkerXX said:
Hey guys,
So I just got my brand-spanking new HTC One today. I upgraded from the Evo LTE, and I already love it.
But there's one thing that has been really frustrating to me for the few hours I've owned this phone... It has major WiFi issues.
My One can see the WiFi network, can connect to it, but wont give an internet connection! It's so frustrating!
My Evo LTE, being connected to the same WiFi network, connects to the internet with no problem at all.
A temporary fix is to turn off the WiFi radio, then turn it back on. As a result, I would connect to the internet for a minute or so, then it would disconnect from the internet (it's still connected to my WiFi network, and it recognizes it, and it gives no messages about the connection suggesting that something is wrong with my router/connection).
I changed the frequency bands, but they all have the same issue. I have enabled "Best Wi-Fi performance" and "Keep Wi-Fi on during sleep."
I've also reseted my router numerous times... No luck.
Is anyone else having this issue, or did I just get a lemon? Can anyone think of a possible solution?
Thanks!
Click to expand...
Click to collapse
Had the exact same problem. Only thing that fixed it was switching my router encryption from WPA to WEP. Works like a charm now. Best of luck.
Sent from my HTCONE using xda app-developers app

Same problem and my solution
I had the same problem. Finally I tried to reset the phone without putting all my google-account info back. Then the wifi works fine. After that a Added my google-account and can enjoy my new HTC one. The phone is really good!
Note that in this way I didn't get all my setting back from my google account (like access points), but at it is working!
StrikkerXX said:
Hey guys,
So I just got my brand-spanking new HTC One today. I upgraded from the Evo LTE, and I already love it.
But there's one thing that has been really frustrating to me for the few hours I've owned this phone... It has major WiFi issues.
My One can see the WiFi network, can connect to it, but wont give an internet connection! It's so frustrating!
My Evo LTE, being connected to the same WiFi network, connects to the internet with no problem at all.
A temporary fix is to turn off the WiFi radio, then turn it back on. As a result, I would connect to the internet for a minute or so, then it would disconnect from the internet (it's still connected to my WiFi network, and it recognizes it, and it gives no messages about the connection suggesting that something is wrong with my router/connection).
I changed the frequency bands, but they all have the same issue. I have enabled "Best Wi-Fi performance" and "Keep Wi-Fi on during sleep."
I've also reseted my router numerous times... No luck.
Is anyone else having this issue, or did I just get a lemon? Can anyone think of a possible solution?
Thanks!
Click to expand...
Click to collapse

theo.hendriksen said:
I had the same problem. Finally I tried to reset the phone without putting all my google-account info back. Then the wifi works fine. After that a Added my google-account and can enjoy my new HTC one. The phone is really good!
Note that in this way I didn't get all my setting back from my google account (like access points), but at it is working!
Click to expand...
Click to collapse
OMG, you saved my life. This was it!

Galaxy Tab S2 5g wifi troubles

Hi, is this the spot to ask about problems with the stock tablet? If not, I'm sorry. If, so please help!
So, I got a tab s2 for christmas. So far I'm loving it, except it will not stay connected to 5g wireless for long! Sometimes it will kick me out every half hour or so of continuous usage, other times it will kick me every 5 minutes. The connectivity problem seemed at first like I just had to adjust something with my network except that any other device that uses the 5g signal does not have that problem! ALSO, sometimes when it hangs it completely freezes the tablet and I have to do a hard reboot (power and vol down buttons) to make it usable again.
At one point I was in the wifi settings page and saw the wifi toggle go grey. It NEVER reconnected after 3 or 4 reboots! Is there something wrong with this particular tablet or is this some sort software issue?
My router is a netgear r6250 fwiw.

Try changing channels on the router, you may have interference on the channels it's using
You can use InSSider to check for channel congestion.

ashyx said:
Try changing channels on the router, you may have interference on the channels it's using
You can use InSSider to check for channel congestion.
Click to expand...
Click to collapse
I have been using Netgear Wifi Analytics to figure out my wifi dropping. I have no trouble with signal in the house...None of my other wifi devices are having trouble! As a matter of fact, just a little while ago, while testing the wifi on the tablet, the signal dropped. I pressed the home button then the whole tablet froze again. Instead of hard rebooting it, I decided to leave it alone to try to get it to unfreeze on its own. It did after about a minute...BUT the area near the volume and power buttons are was pretty warm/hot. The battery also lost nearly 8% in that time as well!
Does this particular one I have just simply have a bad wifi switch/modem/antenna?

I have the same issue. SM-T810 keeps dropping wifi connection to my netgear r7000. Both 2g and 5g. None of my other devices have the issue. Seems to occur a lot with chrome or anything else that saturates the wifi link.

I'd suggest getting the tablet replaced. I've disabled the 2.4GHz mode on two of my routers (ASUS AC66U and ASUS TM-AC1900) and my Tab S2 never had any troubles with 5GHz on these routers.
Anyway, no matter what obscure configuration your router might have, it shouldn't cause the whole device to freeze. Unless Samsung seriously screwed something up, even if the wifi driver crashed (in the worst case), the worst that would happen is that Android won't let you turn on the wifi.

I replaced mine yesterday and the new one is just fine!

I called the Samsung help line, described the symptoms and they said it sounded like a hardware fault rather than a software issue - took my reference number back to place of purchase and swapped it over for a new one. The new one has had zero issues, has not disconnected from wireless once or frozen and even just general browsing seems smoother - the first one definitely had some issue with the wifi bit.
This without even rebooting the R7000 router between the last bout of freezing and disconnections with the old tablet this morning and then starting to download all my apps and settings and wireless sync of 2 gig of data for the new tablet without a single hiccup two hours later. So the router or signal are not the issue.

MadFinn said:
I called the Samsung help line, described the symptoms and they said it sounded like a hardware fault rather than a software issue - took my reference number back to place of purchase and swapped it over for a new one. The new one has had zero issues, has not disconnected from wireless once or frozen and even just general browsing seems smoother - the first one definitely had some issue with the wifi bit.
This without even rebooting the R7000 router between the last bout of freezing and disconnections with the old tablet this morning and then starting to download all my apps and settings and wireless sync of 2 gig of data for the new tablet without a single hiccup two hours later. So the router or signal are not the issue.
Click to expand...
Click to collapse
It sucks, but I'm glad I'm not the only one that had issues!

WiFi Issues

Not exactly certain where to post this (as I am not altogether certain the cause) so if mods have a suggestion to move it let me know.
I have a rooted Tmobile S6 (not rhe edge) running Sick as Hell custom Rom version X w/ Unikernel v9.
Periodically my WiFi signal will display the ER041 - DNS (or less frequently the ER081) error which I believe is related specifically to WiFi calling.
My GF has the exact same phone and the same setup (I think she has WiFi calling enabled as well).
I have run some tests previously where I turned WiFi calling off and still had hiccups with the WiFi (both home and at work).
It seems that when I clear the cache and reboot the issue resolves itself but only short term before I have to do it again.
No one else in the house is having WiFi issues such as me and I cannot seem to figure out if there is a setting that is throwing things off or what.
Any help is greatly appreciated.

Mine does this too but it usually clears itself up within a minute or two.

OP, check your IP address to see if your phone is getting an IPv4 address. I don't know why, but my phone was having major issues with this. I still haven't figured out exactly what the issue was; I was on Sow Nice, flashing back to stock solved the problem. The phone was getting an ipv6 lease, just not ipv4, for no apparent reason.
If that doesn't help, I would advise setting network configuration manually. However if ipv4 isn't working, this may not solve the issue.

WiFi Issues
Alright gang I need some brainstorming...and curious if any other T-mobile Galaxy S6 users are experiencing this issue. I don't believe it is ROM related but thought I'd post the inquiry in here anyhow.
Specs:
T-Mobile Galaxy S6 (SM-G920T) rooted with Sick as Hell X and Unikernel v9.1.
Baseband: G920TUVS3DOJC
Issue:
WiFi is intermittent (both work and at home). WiFi will be running fine on this device and also on my Kindle Fire and at some point WiFi on my S6 will stop working. The WiFi icon will still appear and the up/down arrows will flash but I can't pull up Google search results, YouTube videos, etc.
I get a ER041 - DNS error which is related to wifi calling but I think this issue is in fact DNS related (I've googled and googled and am just not entirely certain, if it is DNS related, exactly how to change settings to thwart this issue going forward).
If I run a speedtest I will get a "Network Communication Issues" message. If I turn off WiFi and then turn it back on the connection is still broken.
HOWEVER, if I clear the cache and reboot the phone, it will connect to WiFi for a period of time until the connection gets broken once again.
My phone seems to be the only device experiencing this issue. I have booted into Safe Mode and the issue still occurs so it doesn't appear to be app related. The Smart Network switch has always been off as well so I know that isn't the culprit.
At work I'm not going to be able to check the router settings but obviously I can at home (at home 4 other users connect to WiFi no problem).
There has got to be some sort of tweak/button/setting that I'm just not catching that is causing this. It is irksome.
I recently did a factory reset but the issue is still persistent. Scanning the interwebs this seems to be a pretty common issue with the S6 and Lollipop.
Any ideas??

socal87 said:
OP, check your IP address to see if your phone is getting an IPv4 address. I don't know why, but my phone was having major issues with this. I still haven't figured out exactly what the issue was; I was on Sow Nice, flashing back to stock solved the problem. The phone was getting an ipv6 lease, just not ipv4, for no apparent reason.
If that doesn't help, I would advise setting network configuration manually. However if ipv4 isn't working, this may not solve the issue.
Click to expand...
Click to collapse
Ya lost me on the IPv4 ipv6 lease jargon.

WiFi issued are 99% kernel related

The Sickness said:
WiFi issued are 99% kernel related
Click to expand...
Click to collapse
Hmmm...well then, Twisted v7.1 has yet to settle in so I guess I can let it ride for a couple days and see how things go.
Thanks bud

cwhiatt said:
Hmmm...well then, Twisted v7.1 has yet to settle in so I guess I can let it ride for a couple days and see how things go.
Thanks bud
Click to expand...
Click to collapse
Keep in mind, the other kernels are international
source.
EDIT.... also uni kernel adds a default.prop in system that has ro.securestorage=false when it needs to be set to true for USA devices

I'd say at this time I can rule out the kernel (it's a been a few days now running Twisted v7.1). I honestly think it is a Samsung bug. Not just S6 users but Galaxy S7 users are now reporting the issue as well (there is a thread over at AndroidCentral).
Just like myself, those users are reporting that Smart Network switch and Blutetooth and the like are turned off/disabled and yet the problem persists.

I've had WiFi issues on an s6 edge. But I figured it out that if I'm near my microwave and it's on WiFi dies on the phone. Soon as the microwave goes off it works fine ?

ShinySide said:
I've had WiFi issues on an s6 edge. But I figured it out that if I'm near my microwave and it's on WiFi dies on the phone. Soon as the microwave goes off it works fine
Click to expand...
Click to collapse
Huh. Not the case in my situation. I've got a microwave but it's in the basement and rarely used.

Dodgy wifi

Has anybody had any problems with their WiFi not connecting? My device seems to fail to connect to wifi after a couple of days and just sits trying to connect. Toggling WiFi doesn't seem to resolve it, and I have to reboot the entire phone to get it back online.

No problem here.
Connects very quickly, never seen it fail to connect, even on my works dodgy BT homehub 3, which used to tie my old Z3 compact up in knots..

Yep.I thought that Snapdragon 835 cause this problem. Xi oami 6., ZTE z17 and Op5 had the same question with WI-FI connection.

gesongwei said:
Yep.I thought that Snapdragon 835 cause this problem. Xi oami 6., ZTE z17 and Op5 had the same question with WI-FI connection.
Click to expand...
Click to collapse
I have a sd835 s8 and I haven't had any wifi issues whatsoever since launch. It's a sample size of 1, but I don't know if it's truly due to the sd835

I haven't had any WiFi issues. In fact my WiFi connections have improved using the XZ1 compact over the X performance (the X performance dropped its WiFi connections 3 times during my data transfer to the new phone)

I've had my XZ1c for about a week now (European model) and it connects to my home network (5G) normally. Signal strength is fine, although the galaxyS6 it replaced definitely had superior reception. I do have wifi issues, but only when already connected to the network. When the phone is asleep (screenlocked) it seems to lose an active connection. The wifi connection should be on at all times, even asleep. It will show the wifi symbol, but data apps don't load, and it will have lost the connection as remote for spotify connect (playing on my reciever). It will also switch to mobile data at random times with normal wifi signal strength (even though I toggled this function off in the developper settings).
I'm not sure if this is something that can be fixed through system updates. I haven't seen any forum posts with similar problems though, so I'll try to document what is actually happening before I contact Sony support.

I bought the US version and flashed the UK firmware to get the fingerprint reader to work. No issues whatsoever with this phone. No Wi-Fi issues, overheating, signal strength, battery, nothing. Everything works just perfectly.

Same issue here. Mine is Europe (NL) version. The upload and download speed can be very unstable. And especially when I take it a bit far way, even you see that it's connect to the wifi with full signal strength, it said internet is unavailable.
I'm not sure if this related to the system update of last weekend or not.

Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resolve it is to reboot the phone, which fixes it instantly.
I contacted Sony and they told me to do a complete reset on the phone, this didn't work. I updated my findings and pointed out that it's seems to be a firmware compatibility issue. Of course, you only get to talk to first line, and as a reset didn't work, they want me to send it off for a warranty repair (which of course will be returned with "no fault found" as no doubt their wifi will be different enough for it not to have been picked up on day 1 testing).
I'm currently trying to gather a bit more information on the fault, e.g. does it only happen on my home wifi etc. I've disabled channel bonding but that didn't help, and I've not jiggled my DHCP settings after seeing plenty of posts describing wifi problems on Oreo for other phones.
It doesn't happen frequently enough and I don't have the time to delve deeply into the network to identify the cause.
One interesting thing was that it went funny at home, but it was working when I got to work. When I got home it still couldn't connect. So I suspect it's to do with a particular compatibility issue somewhere.

no problem here conecting to 5 and 2.4 wifis...

android_fury said:
I bought the US version and flashed the UK firmware to get the fingerprint reader to work. No issues whatsoever with this phone. No Wi-Fi issues, overheating, signal strength, battery, nothing. Everything works just perfectly.
Click to expand...
Click to collapse
I haven't gotten around to this yet. Do you still have wifi calling and volte available?
---------- Post added at 11:05 AM ---------- Previous post was at 11:04 AM ----------
So far my wifi has been fine...

Mine is worst, i couldnt get it to connect at all but all my other device including xperia xa, xzp, laptop, Ps4 PS3, everything connect without any issue whatsoever, already excahnged once and still the same.

Think mine is struggling with either a single access point or VLANs. I need to dig further, but that requires buying a new AP - this phone is getting more and more expensive!

exactly same issue as Dashers describes with my XZ1c. I am not watching it closely, but it seems that it is hapenning after around 2 days online. Never happened before on same network with my previous Z3c, which had run months without restart and any problems whatsoever (till its display died

Dashers said:
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resol... .
Click to expand...
Click to collapse
I have more or less the same issues, and a reboot always solves it. It happens with both routers form ASUS and Draytek.
Additionally I see issues with Spotify connect dropping or not being found on my Sonos (hardwired to LAN), but not so much to Chrome Cast Audio on the same network.

I don't have a problem connecting to wifi, but I seem to have a different issue. Even though wifi scanning is toggled off in settings, my phone still seems to be scanning according to Battery Historian. I think this is one of several things contributing to my high idle drain. Does anyone else have this problem?

jrbmed08 said:
I don't have a problem connecting to wifi, but I seem to have a different issue. Even though wifi scanning is toggled off in settings, my phone still seems to be scanning according to Battery Historian. I think this is one of several things contributing to my high idle drain. Does anyone else have this problem?
Click to expand...
Click to collapse
Have you turned wifi scanning off ?
settings\Lock screen & security\Location\Scanning - turn wifi scanning off

Didgesteve said:
Have you turned wifi scanning off ?
settings\Lock screen & security\Location\Scanning - turn wifi scanning off
Click to expand...
Click to collapse
Yes, wifi and BT scanning are both turned off in settings and have been since the beginning, but both seem to be happening anyway according to Google's Battery Historian tool. When I go back in to see if they've been toggled on by an app or something, they still appear to be off.

Dashers said:
Further to my issue. My phone will drop wifi connection and repeatedly try and connect - it usually cannot see any other networks at the time. Restarting the wifi on the phone, or rebooting the access point do not help. Running a packet sniffer on the LAN shows no activity, which indicates the issue is to do with wireless handshaking.
The problem occurs every few days and the only way to resolve it is to reboot the phone, which fixes it instantly.
I contacted Sony and they told me to do a complete reset on the phone, this didn't work. I updated my findings and pointed out that it's seems to be a firmware compatibility issue. Of course, you only get to talk to first line, and as a reset didn't work, they want me to send it off for a warranty repair (which of course will be returned with "no fault found" as no doubt their wifi will be different enough for it not to have been picked up on day 1 testing).
I'm currently trying to gather a bit more information on the fault, e.g. does it only happen on my home wifi etc. I've disabled channel bonding but that didn't help, and I've not jiggled my DHCP settings after seeing plenty of posts describing wifi problems on Oreo for other phones.
It doesn't happen frequently enough and I don't have the time to delve deeply into the network to identify the cause.
One interesting thing was that it went funny at home, but it was working when I got to work. When I got home it still couldn't connect. So I suspect it's to do with a particular compatibility issue somewhere.
Click to expand...
Click to collapse
I have this exact problem. One second its 100% signal and is workin as expected. The other second it just drops and tries to reconnect like crazy. I have even had moments when i am unable to find my wifi after said disconnect. All my other devices is working like normal on my wifi. Using Asus n66u 5ghz.

I have been having the same issues as mentioned above with my XZ1 compact(european). My issues with dropping wifi signal seems to be happening when there are two different wifi signals to choose from. They are both on my local network. One is an extender due to the size of my house. When it can detect both signals, it can't make a decision on which one to choose. Once I remove a device(forget wifi device), it stays connected to the other with no problem. Since it isn't trying to compete with the other.
Has there been any improvement on this issue?