I have a sprint galaxy S6 that I rooted years ago with the pingpong root. So its on the stock rom and never updated passed 5.0.2 I believe. I haven't done much with the root except enjoy the use of the hotspot that sprint tries so hard to deny users. However lately I've been having problems. The build in hotspot no longer works, and I suspect its some stealth update from sprint. It'll turn in without issues, but then I'll watch my mobile data disappear. The 4G blinks off, then it tries 3g, then nothing, then 4g, 3g, nothing, etc... Turn the hotspot off and everything returns to normal.
Fine. I'll download "Wifi Tether Router" and use that. However, every 5-15 mins my laptop loses connection and the hotspot won't show up in the list of networks despite it still running. What I suspect happening is my wifi is quickly turning on and off, disrupting the hotspot. Now, after getting the phone and going through all the settings, I turned off connection optimizer and unchecked the allow scanning. However every once in awhile while using the phone, if I happened to have the drop down menu down.. I'd notice the wifi quickly cycle on then off. It never affected anything I did so I left it be. Now when using the tether app, I rechecked all my settings, even turning off "keep wifi on while asleep" and checked the dev settings to make sure the wifi scanning/roaming was off. I am completely lost. Are there any settings I'm missing? Is there anything I can do with root to stop wifi from turning itself on without user interaction?
Or, is there any way to fix my built in hotspot? I have a new laptop and now have more use for this function.
Thanks guys.
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Hi,
Just wonder if anybody is experiencing the same wifi fallback issue on the SGH-i727?
Basically, the phone doesn't automatically fall back to the previously added wifi network from LTE/4G when the screen is off. To get around that, I'll need to hit the power button once every time I enter the wifi range. When the screen is turned on by hitting the power button, I will see the 4G/LTE being replaced by the wifi icon very quickly. After that, it will then stay connected to the wifi network regardless whether the screen is on or off.
I was able to confirm this issue by monitoring the app traffic before and after I turned on the screen.
Without turning on the screen in the wifi range, the phone will stay on the 4g/LTE network forever even though the previously added wifi network is available.
I have already tried out different routers and it's still the same. SSID broadcast is on. I am thinking if there's a bug with the phone. Note that on my phone, my "Wi-Fi sleep policy" under the advanced menu of the "Wi-Fi settings" is always set to "never". Also, it's a stock ROM, nothing is modified at all.
This issue has never happened on other phones. What you think? Am I missing anything here?
After playing with it more, I noticed that the phone will never do the wifi handshake when the screen is off.
I tried turning off and on the wifi in the Wi-Fi settings. If I turn off the screen quickly before the phone gets connected to the wifi network again, it *will* remain unconnected until the screen is turned on again. =(
Did you go into the advanced wifi settings and change the wifi sleep policy?
Sent from my SAMSUNG-SGH-I727 using XDA App
No, I didn't. I've never touched that setting. The "Wi-Fi sleep policy" is always set to "never".
My phone can still be connected to wifi when the screen is off, so it doesn't seem related to the "Wi-Fi sleep policy". The problem is only that it won't do any wifi connection handshake during screen-off.
Am I the only one having this issue? I guess that's more of a software issue rather than a hardware issue?
Have you tried the AT&T wifi app? It automatically turns off and on wifi as needed
No, that doesn't help.
Yes, I do realize I'm bringing back a thread from the dead, but...
I just got a Samsung Stratosphere (SCH-i405 -- a CDMA-1X/EVDO/LTE Galaxy S phone) and it does EXACTLY the same thing. It's ironic, on the Stratosphere they added a bit of fun that CONSTANTLY lets you know there's networks (which I had to disable), but it doesn't connect to the wifi networks I do have in there until I turn on the screen I guess that's just how it is; at least it doesn't kill the wifi once it IS connected.
If anyone knows a programmatic way to bypass this, I'd be interested, and I could write up a wifi app to implement the solution. I'm guesisng it's a behavior of the drivers though and would take some custom ROM or something to fix.
You could always try to use tasker for automatically connecting to the wifi using radio antenna or maybe can't remember if possible by identifying certain wifi spot.
Hey,
I have a Nexus 5 that is set up to basically act as a router using wireless tethering. I live in an area where I constantly have full-blast LTE that is usually above 30Mbps. For about a month, everything's been great until this last week. Now, every few hours my data connection gets killed completely after anywhere from a few minutes to a few hours after tethering has been running. Data stops working on all tethered devices as well as the Nexus 5. Entering airplane mode and then resetting the WiFi tether fixes the symptoms, and if that fails, restarting fixes it.
I've disabled wireless_tether_dun (sp?), switched to IPv4 and I sometimes use a VPN that passes through all network traffic through the VPN. Even with VPN disabled, the data drop keeps happening.
I know there are so many things that can be going on, but has anyone else noticed this recently? I'm wondering if it is a hardware issue, a signal issue, or perhaps T-Mobile has changed something on their side of things that is killing my somewhat obvious abuse of their network.
x2
jondwillis said:
Data stops working on all tethered devices as well as the Nexus 5. Entering airplane mode and then resetting the WiFi tether fixes the symptoms, and if that fails, restarting fixes it.
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Click to collapse
I am having the exact same issue -my post- in a completely different place, only I have been assured it is completely fine to use my phone on the network in this way. Did you ever find a solution to this?
I have a Motorola DROID RAZR Maxx HD and i use wifi tethering on it alot. Sometimes, when ive had my phone in airplane mode, and then take it out, it takes a long time for the tethering to come on even when i have service. So for example, ill have my phone in airplane mode, take it out, get 4G, and it still takes up to a minute or so for the "Checking Subscription Status" box to come up.
I also have the above problem when either A) I turn the wifi tethering on and it turns on but then turns back off (Need help with that problem to) Or B) I turn my WiFi tethering off and then try to turn it back on.
I also would like to note that i use GO Power Master with the PRO Version key. I use screen off optimization, and have most of the system settings checked off so they wont turn them off, but its still slow.
So my question is, what all processes go into the WiFi tethering and how can i fix the problem. Im also unrooted.
I wanted to know if i can make wifi turn off with out coming back on by it self i hate that and have turned off everthing that automatically turns on yet it tryst to turn on over and over again does it the most when I'm using my .mobile hotspot and will actually turn off my hotspot
When I turn off wifi it stays off.
Hmm my wifes note 5 does it to
I just turned off some settings WiFi advanced menu. ..going to see if that helps.
Sent from my SM-N920P using Tapatalk
Turn off your connection optimizer in settings
Sent from my SM-G920P using XDA Free mobile app
I now have everything turned off now it only seems tobe happing when hotapot is active it tells me that activating wifi will disconnect hotspot then it says cencel of turn on wifi if I hit cencel it will pop back up quick if I do nothing it just sit there untill screen blacks out then turns on wifi by its self and kicks me off hotspot really making me mad
My Sprint Note 5 does the same thing. When using the hotspot, it keeps displaying the "Turning on WiFi will disable hotspot notification. As soon as I return home and the Note 5 sees my home WiFi network is automatically connects and kills the hotspot. Even though I haven't responded to the notification.
If I'm not using the hotspot, then it never automatically turns WiFi back on when returning home.
I have set location services to use GPS only, set Smart network to off. Yet, when using hotspot, it keeps trying to turn WiFi back on.
Same here :/
I wonder why can we get a dev insight on this
That is connection optimizer at work which switches when you get home it looks for the best signal..... turn it off in settings.
Chaz187 said:
That is connection optimizer at work which switches when you get home it looks for the best signal..... turn it off in settings.
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Click to collapse
It is turned off everything about wifi is turned off the only time wifi trys to activate is when mobile hotspot is on and if I don't catch it it will deactivate my hotspot this is something else
uknow said:
It is turned off everything about wifi is turned off the only time wifi trys to activate is when mobile hotspot is on and if I don't catch it it will deactivate my hotspot this is something else
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Thats wierd i have no issues with wifi and hotspot turning off.....
I can say I have the same problem. I'm on sprint, not rooted but used the MSL code to open hotspot. Me and the Wife both have note 5's both with the same problem.
I also have connections optimizer and all settings I know of keeping wifi off.
Only does it when hotspot is on.
Hi,
I'm using a Sony Xperia Z5 Dual Android 7.0 facing that issue making me unable to use my WLAN hotspot (which it pretty anoying cause it doesn't only dissallow me to share my internet connection but also I can't do other network stuff between devices I'd use that hotspot for).
So when I try to turn on my the hotspot it simply turns itself off again after small amount of seconds. When I got to WLAN hotspot in settings then I have the active button to switch the hotspot on while it shows me tbat it's of at the moment. Doing that it says "Activating hotspot..." (pretty exactly that) until it's going off again with a quick "Deactivating hotspot" and you could activate it again but it will do nothing again than say "activating" and go off again. While it is "activating" it already shows the active hotspot icon in the top bar of the phone and the hotspot settings are as well already active and no more inactive greyed out. But only for nk idea, 3 seconds probably. Within that short period of time my laptop didn't find my phones hotspot but that might just be down to an to high delay in scanning and finding so I don't know wether it would shortly pop up seeable for other devices.
Earlier that day I had my hotspot working actively (nobody actually joined) but it worked and would have if somebody joined because that issues is not new to me on my phone and when the hotspot activates, then it also works. But half of the time it seems when I want to use it, it doesn't work. I haven't changed any settings inbetween or restarted my phone. It was probably on for one week, but after then trying a restart it still didn't help.
I already changing some one-click stuff like just turning out WLAN, turning off or on data save mode (which stops background data for all apps in mobile internet and WLANs marked as hotspots), turning off or on mobile data. But well, I don't know anything else and earlier it worked with all the same settings so what could be the problem behind that?? Besides that my phone always just works completely normally without any issues, WLAN always works without problems, only Bluetooth sometimes doesn't want to activate and then I see it active after some minutes or hours later, but that can always be fixed with a restart if I needed it instantly. If you just wait and it is active then tough, it is kinda awoken and works instantly then again shutting it off and on.
Phone is not rooted btw.
Ok long text, but please if you have any ideas tell me..
Greetings, HelpsToMes