Phone loses wifi networks when it sits - T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting

The lollipop fairy brought me a fun quirk where my phone loses it's wifi connection after about an hour of standby, and then can't find any networks until I kill it and bring it back. Anyone else suffered through this and have any pointers? It's after about an hour but always within three regardless of power and happens at any location unless I'm moving. So five hours on a car dash is fine, but no wifi after sitting through a movie. Weird as hell...
Stock lollipop, rooted, twrp

Any apps that may be causing sleep?? Have you dissabled any services of any kind?? Have you turned "allways allow scanning" off under advanced wifi settings? Wifi sigs do fluctuate.
Have you had lock problems were you know its at least a good 2.4 hopefully a 5g band??
Tapatalk signature: Flashvetrin

Related

[Q] Slow to latch to wifi? Connect to 3g briefly before wifi.

I have a pretty stock HTC One, and I'm on a particularly sub par data plan, where each 'data session' is rounded up.
I have wifi both at home and at work, good wifi signal and am v close to router etc. I find that if I put the phone into standby and then use it again 5-10 minutes later, it is still connected to wifi, all good. If I leave it for 20-30 minutes, when I wake it, it latches onto the 3g network for a few seconds and then realises there is wifi and connects to that.
I have things like Google+, FB messenger and push mail which I presumed required a constant connection.
Any thoughts on why the wifi appears to be being turned off as it entertains deep sleep?
I can just switch data off when at home or work but I don't want to have to rely on that sort of thing, and the apps that do that for you based on GPS etc aren't that appealing either.
Look in adavanced settings under wifi. Should be able to set it to keep wifi on during sleep
Sent from my HTCONE using xda app-developers app
Thanks for the reply. Yup I have that set to always. Seems to happen both on my home and work wifi, despite great signal strength. Sometimes it seems it does happen even if the phone is unused for 5-10 minutes.
I assume this is actually pretty common and most if not all phones do this, you probably wouldn't notice unless you were tracking each connected data session.
I was thinking the phone must do something like, wake, spend x time looking for wifi while simultaneously connecting to 3g, then when wifi is found it is connected to and the 3g connection is dropped. I guess I'd be looking to delay/postpone that connecting to the 3g network for 5 seconds or so to give the wifi time to establish.
Probably nothing I can do really.
I haven't noticed any problem staying connecetd to wifi while sleeping and Ive looked at the notification bar many time before ever unlocking the phone, just to make sure wifi stayed connected as its suppose to and it does. Only see 3g when Ive set it keep wifi on during sleep to only when plugged in and I dont have it plugged in. I also have best wifi performance checked. Dont think that makes much difference though. Im also stock at the moment
Sent from my HTCONE using xda app-developers app

WiFi keeps turning off during sleep

Running any Marshmallow rom on this phone always turns the wifi off after about 30 seconds of screen-off time. This is incredibly frustrating because it breaks any app I have running in the background that uses wifi. For example netflix on chromecast always loses it's connection and I cant control my chromecast because the wifi disconnected. It's also needlessly using cellular data while asleep.
I have checked all the wifi options and theyre all set correctly. There is a whole 10 pages of complaints about this on a simple google search with no real solution provided. You guys have any ideas?

adaptive wifi

I have it enabled and it says it auto turns off WiFi and back on when near used wifi locations but it doesn't do that at all. Does it simplyeave WiFi on but low energy?
Screenshot l
Yeah it works.
How do you know it doesn't do it? Cellular phones hand off betwixt cellular and wifi all the time.
When and how often it does is based on some under the hood shenanigans that we dont know about.
marctronixx said:
How do you know it doesn't do it? Cellular phones hand off betwixt cellular and wifi all the time.
When and how often it does is based on some under the hood shenanigans that we dont know about.
Click to expand...
Click to collapse
I drive away from my house. WiFi stays on but not connected. Screenshot says wifi will turn on when near known connections but it never turns off ?
masri1987 said:
I drive away from my house. WiFi stays on but not connected. Screenshot says wifi will turn on when near known connections but it never turns off ?
Click to expand...
Click to collapse
I don't think it's supposed to turn off. What that phrase means is that it will connect to WiFi when it's near a saved access point and will use mobile data when none are nearby, but WiFi will still remain on.
What adaptive WiFi does is it will use mobile data even if it's connected to a WiFi access point if the WiFi signal is bad.
I'm not sure what adaptive wifi supposed to do, I have it off and it switches between wifi and cell as it should. Is it switching in the middle of data transfer or something? Because right now I probably drop connection if move outside wifi range and will be on cell tower on the next redial. But to tell truth I never tested it.
So basically it's a gimmick, because Wifi as it is, will auto-connect to previously connected networks as long as you had wifi on. If i'm interpreting the screenshot properly the feature "turns on" wifi, therefore, it must be able to turn it off? I've even manually turned it off to see if it will turn itself back on when i get back home and nothing either.
No documentation on Samsung's site as far as i can find
masri1987 said:
So basically it's a gimmick, because Wifi as it is, will auto-connect to previously connected networks as long as you had wifi on. If i'm interpreting the screenshot properly the feature "turns on" wifi, therefore, it must be able to turn it off? I've even manually turned it off to see if it will turn itself back on when i get back home and nothing either.
No documentation on Samsung's site as far as i can find
Click to expand...
Click to collapse
Basically if you're connected to WiFi but have crappy signal like .2 kbps, it will start using your mobile data even if you're still connected to that WiFi. With adaptive WiFi turned off, it will keep using the crappy WiFi connection until you manually turn WiFi off or manually disconnect from the crappy network. Pretty much the reverse of WiFi calling (use WiFi if phone signal is crappy). Note the exceptions sentence at the bottom, it will not use mobile data even if the WiFi has a crappy signal if the crappy WiFi is exempted.
The "turn on" statement is correct, it will automatically turn on and connect to WiFi when it's in range of "trusted" access points (similar to "trusted devices" and "trusted places") but there is no automatic "turn off", at least, it hasn't done that while I've been using it.
OK i see what you are saying
wifi does not PHYSICALLY TURN OFF. wifi is still connected--the phone will auto switch to the stronger of the two. it won't turn the on screen "switch" off if that is what you are looking for.
its not a gimmick. it works if you are in an area with robust wifi and/or cellular. its supposed to work "in the background" so you don't know its going on.
google fi kinda does this. since google fi uses tmobile and sprint, the phone auto switches between the two carriers depending on which is stronger at the time. i've seen this happen by monitoring an app.
masri1987 said:
So basically it's a gimmick, because Wifi as it is, will auto-connect to previously connected networks as long as you had wifi on. If i'm interpreting the screenshot properly the feature "turns on" wifi, therefore, it must be able to turn it off? I've even manually turned it off to see if it will turn itself back on when i get back home and nothing either.
No documentation on Samsung's site as far as i can find
Click to expand...
Click to collapse
Not a gimmick at all. I work at a hospital that has wireless routers throughout that all piggy back the same access point. I see Adaptive wifi in action all day. Keeps me from losing my connectivity from my work portal.
don't think I want to have this on: I have limit on my cell data, let's say I start downloading something large, let's say 5- 10 GB movie from Amazon on wifi, then I go to my upstairs bedroom, wifi gets weaker, so it switches itself to stronger cell tower and eats my whole month data allotment in one evening, before I even notice? And all I had to do is keep the phone downstairs, next to the router to avoid it. Or am I missing something?
harveydent said:
Basically if you're connected to WiFi but have crappy signal like .2 kbps, it will start using your mobile data even if you're still connected to that WiFi. With adaptive WiFi turned off, it will keep using the crappy WiFi connection until you manually turn WiFi off or manually disconnect from the crappy network. Pretty much the reverse of WiFi calling (use WiFi if phone signal is crappy). Note the exceptions sentence at the bottom, it will not use mobile data even if the WiFi has a crappy signal if the crappy WiFi is exempted.
The "turn on" statement is correct, it will automatically turn on and connect to WiFi when it's in range of "trusted" access points (similar to "trusted devices" and "trusted places") but there is no automatic "turn off", at least, it hasn't done that while I've been using it.
Click to expand...
Click to collapse
Exactly what happens to me when I leave home. My phone (old Note 7) will stay connected to my home network but won't be able to pull down any data from the net. It has to be manually turned off.
Sent from my SM-N950U using XDA-Developers Legacy app
thanks for the education!!
Any 3rd party apps you can recommend that would do what i am looking for?
so an update. It work exactly how it says it would. I had to drive 7 miles out, but wifi automatically turned off, even with scanning off, once i got home it turned back on.
I like it. It works great for me.
masri1987 said:
so an update. It work exactly how it says it would. I had to drive 7 miles out, but wifi automatically turned off, even with scanning off, once i got home it turned back on.
Click to expand...
Click to collapse
Ah, that's the thing. I noticed my WiFi would automatically turn off sometimes and sometimes not, and I couldn't reproduce it reliably. It's most likely either distance or time you have to be away from the "trusted" access point.
Congrats, now you can forget about toggling WiFi forever!
I think this setting has been screwing with my wifi related Tasker profiles. Suspect it really does turn wifi off.
I used to switch my wifi off manually when leaving the house.
All this #[email protected]\%! public wifi, blocking my internet because asking to log in....
Any shop or restaurant where you walk in does it.
And you do not know it, till you search the web and see that there is no internet at all till you switch your wifi off or log in to the shops fishing routers.
Adaptive wifi is a must have and a great improvement.
E.g. walk in a MacDonald's with adaptive switched on or off, you will see it is mother's little helper.
You need to have enough data from your provider of course.
Huib
masri1987 said:
thanks for the education!!
Any 3rd party apps you can recommend that would do what i am looking for?
Click to expand...
Click to collapse
Ifttt on Google play store
marctronixx said:
How do you know it doesn't do it? Cellular phones hand off betwixt cellular and wifi all the time.
When and how often it does is based on some under the hood shenanigans that we dont know about.
Click to expand...
Click to collapse
Now that is some sweet use of the English language!

Aggressive WiFi to cellular handover

Does anyone else experience their pixel 5 deciding that a perfectly good wifi connection is "low quality" and using cellular instead?
I have this happen very often. Have at least 50% of the wifi symbol full on my fast home network (that nothing else struggles on) and my pixel 5 just labels it as "low quality" and switches to cellular. I normally just have to go to airplane mode and turn wifi on. Toggling wifi (without airplane mode) will get it to reconnect but it'll quickly do it again on occasion.
I remember in the past there was a setting for aggressive WiFi to cellular handover but that's gone now. Not sure if that would solve this anyway.
What are your actual wifi stats? Just because the icon shows 50% doesn't mean you actually have a good signal.
Gibsonflyingv said:
Does anyone else experience their pixel 5 deciding that a perfectly good wifi connection is "low quality" and using cellular instead?
I have this happen very often. Have at least 50% of the wifi symbol full on my fast home network (that nothing else struggles on) and my pixel 5 just labels it as "low quality" and switches to cellular. I normally just have to go to airplane mode and turn wifi on. Toggling wifi (without airplane mode) will get it to reconnect but it'll quickly do it again on occasion.
I remember in the past there was a setting for aggressive WiFi to cellular handover but that's gone now. Not sure if that would solve this anyway.
Click to expand...
Click to collapse
count your blessings. in my experiences, android tends to hang onto bad wifi connections for faaaarrrrrrr too long. i'll be a half mile from the house before it finally switches over.
WaxysDargle said:
count your blessings. in my experiences, android tends to hang onto bad wifi connections for faaaarrrrrrr too long. i'll be a half mile from the house before it finally switches over.
Click to expand...
Click to collapse
I wish that was the case for me. Mine will pick a single bar of LTE over my near full wifi signal. I've never had another phone do something like that. I basically have to use my phone with airplane mode on at home.
Unlock the developer settings and turn on verbose wifi. It should give you better wifi signal and band information to work with.

Question Wifi <-> Mobile switching?

I have this strange issue that has been with me almost since the beginning. I haven't been able to trace when it happens, but it now seems almost 100% of the time.
I only have WiFi in the house (wifi6, if it matters). If I go out, I only have 4G (I left only 4G and disabled 5G). I have no data until I put the phone into airplane mode and back, or I disable and re-enable mobile data.
Same thing when I go back in the house: no data until I disable and re-enable WiFi.
I've disabled the option for 'always-on mobile data' or similar, it's quite a battery drain if there's no cell signal.
Seems like a very strange bug, I don't have this with any of my other phones.
So you have both WiFi and 4G enabled and they don't switch seamlessly?
Exactly. I always have to restart each one of them, usually by toggling airplane mode. Was wondering if anyone else ran into this issue.
Ok this really is strange. There are 2(!) different toggles to enable data switching between WiFi and 4G, but for me it works flawlessly without them! As soon as I get out of my home WiFi range, 4G kicks in, and when I get in range again, the phone connects to my WiFi...
Hi, i have this problem too but it's not always.
I have a wifi 6 router too.
I also have problems switching from wifi to 4g. Need to toggle airplane mode on/off. 5g deactivated. No wifi 6 here.
I always assumed my vpn is causing problems during the switch to 4g. But hearing others have the same problem i would assume its zenfone problem.
I never had any issues in this area with my ZF8. With the option to have cellular always on I could walk out of my WiFi zone during a video call and no drop or short pause would appear.
With this off the network need a few second to work, and some apps need to be refreshed/restarted to gain connection. Never needed to toggle connection for this to work.
Maybe a reset would be enough or check for updates.
Ah, exactly! It does not necesarily need a network restart, but some apps just lose connection for a while, which can be from a few seconds to >1h. Which is even more weird as the icons are showing full connectivity. I would go out of the house, do stuff, come back later and I would only get the notifications when I'm back inside the house.
Rarely I had the connection drop completely (no signal) when switching, but I haven't noticed this happening since the last update.

Categories

Resources