Develop Bugs

3G when connected to WiFi

On most Android Devices, when you connect to WiFi, your 3G disappears. This doesn't occur on my 2.2 Defy. Is this normal?

Mine does that too, but not completely. After the upgrade WiFi always disconnects when the phone sleeps (in 2.2.1 US the setting to force WiFi had gone away), and it takes a while after a turn-on for WiFi to be re-established, after which the 3G icon goes away. BUT, this is not the case right after reboot when for the 3G icon to go away I need to first toggle WiFi off and on.

try juice defender

MarSOnEarth said:
Mine does that too, but not completely. After the upgrade WiFi always disconnects when the phone sleeps (in 2.2.1 US the setting to force WiFi had gone away), and it takes a while after a turn-on for WiFi to be re-established, after which the 3G icon goes away. BUT, this is not the case right after reboot when for the 3G icon to go away I need to first toggle WiFi off and on.
Click to expand...
Click to collapse
change your wifi sleep policy

hah2110 said:
change your wifi sleep policy
Click to expand...
Click to collapse
That's the crux; that setting is absent in 2.2.1 (as I mention in the text you quoted)

Do you still have ability to select preferences in wifi calling -- if so, does that help over-ride 3G with wifi?

scrannel said:
Do you still have ability to select preferences in wifi calling -- if so, does that help over-ride 3G with wifi?
Click to expand...
Click to collapse
The short answer; yes, and no, the long; had to rename the app first, and the Calling Preferences is there and it was set to WiFi preferred.
So, it seems that the WiFi behavior is one of those things that still needs fixing in the 34.4.9 release.

Yes mine does it too. It did it on 2.1, and now 2.2.1. After about a half hour the 3G icon goes away. Doesn't bother me.

Mine wasn't doing this on 2.1, and yes, it bothers me. I'm on a limited data plan, so I have to make sure that most of my big downloads happen through WiFi.

MarSOnEarth said:
Mine wasn't doing this on 2.1, and yes, it bothers me. I'm on a limited data plan, so I have to make sure that most of my big downloads happen through WiFi.
Click to expand...
Click to collapse
It still uses Wi-Fi even though both icons are showing. I track my use with NetCounter from the Market, and "Data" is always 0 (zero) when I have both icons.

[SOLVED] WiFi not working properly? 3G/4G stays on due "My Account" App

So when i am home i have my WiFi on, which means my 4g is off. Now when the WiFi is on, i can not receive or send pictures. Also cant use the web or do anything like that but just send and receive text/calls.. and reason to this? maybe i have certain settings on that i don't know about? If i remember right, my wifi worked properly a few days ago.. but i cant remember exaclty. Help please? Thanks

no one knows?

Power cycle your router?

I've been having a different wifi issue. at home I have only edge coverage but I have petty good cable internet so obviously I want to use my wifi but for some reason the phone connects to wifi yet still uses the mobile network unless I turn off mobile data. My wifi sleep policy is set to never btw. Any ideas?
Sent from my Hercules with xda Premium.
Edit
Also if I turn off mobile data while connected to wifi then turn it on while still connected it stays on wifi fine. Its like the mobile radio is preventing the wifi connection from fully initializing or something

Same issue!
kenvan19 said:
I've been having a different wifi issue. at home I have only edge coverage but I have petty good cable internet so obviously I want to use my wifi but for some reason the phone connects to wifi yet still uses the mobile network unless I turn off mobile data. My wifi sleep policy is set to never btw. Any ideas?
Sent from my Hercules with xda Premium.
Edit
Also if I turn off mobile data while connected to wifi then turn it on while still connected it stays on wifi fine. Its like the mobile radio is preventing the wifi connection from fully initializing or something
Click to expand...
Click to collapse
I am having the same issue. I have to go into airplane mode, then turn on wifi to actually be able to use it... otherwise seems to default to mobile radio...

I have the same issue..this is what i do to work around it though:
1. Go to Settings>Wireless and Networks>Mobile Networks
2. Uncheck packet data, and then check it again.
Once i do this, my wifi works again, let me know if it works for you.

jmr533 said:
I have the same issue..this is what i do to work around it though:
1. Go to Settings>Wireless and Networks>Mobile Networks
2. Uncheck packet data, and then check it again.
Once i do this, my wifi works again, let me know if it works for you.
Click to expand...
Click to collapse
That does work but its a frustrating step lol
Sent from my Hercules with xda Premium.

jmr533 said:
I have the same issue..this is what i do to work around it though:
1. Go to Settings>Wireless and Networks>Mobile Networks
2. Uncheck packet data, and then check it again.
Once i do this, my wifi works again, let me know if it works for you.
Click to expand...
Click to collapse
yes, does seem to work, but agree it's frustrating.... Hope they fix this soon.

Got this from the battery thread. This actually fixes the wifi issue on my SG2
The program is called Llama and can be downloaded from the market. I deleted all the default events and just added these 2. Hope this helps for all of you with this issue.
Originally Posted by paprcut View Post
Here are a couple of things that really helped my battery life:
- Install Llama and launch it
- Add an event called WiFi
-- Add condition: WiFi Connected (any network)
-- Add action: WiFi Sleep Policy (never sleep)
-- Add action: Toggle Mobile Data (off)
- Add another event called WiFi Disconnected
-- Add condition: WiFi Disconnected (any network)
-- Add action: WiFi Sleep Policy (sleeps when screen turns off)
-- Add action: Toggle Mobile Data (on)
Click to expand...
Click to collapse

Try freezing "my account". It toggles data even with WiFi is on. Try it and let me know.

Brotha Noompsey said:
Got this from the battery thread. This actually fixes the wifi issue on my SG2
The program is called Llama and can be downloaded from the market. I deleted all the default events and just added these 2. Hope this helps for all of you with this issue.
Click to expand...
Click to collapse
Actually saw this tread and had Llama installed with these 2 profiles added and was till getting this issue... Going to try Freezing My Account to see if that helps... I know it helped with my wifi issues on my G2x.
Update: Nothing seems to work now. Can't have Wifi and cell radio on at the same time... can get calls but nothing else...

I've seen it occasionally as well. I haven't needed to reboot though. It usually recovers after I toggle WiFi on and off and mess with some other things.

Splaktar said:
I've seen it occasionally as well. I haven't needed to reboot though. It usually recovers after I toggle WiFi on and off and mess with some other things.
Click to expand...
Click to collapse
I notice the same issue and I also toggle wifi on and off to get it to work back again.
Sent from my SGH-T989 using xda premium

Same here. I have to toggle wifi on/off and sometimes reconnect through wifi settings to get it back.
Sent from my SGH-T989 using XDA App

Same here. It's really annoying
Sent from my SGH-T989 using Tapatalk

Medikay said:
Recently I have noticed that the wifi on my phone stops working randomly...even though it says it's connected. Usually I can solve this problem by rebooting; should I return the device?
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Click to collapse
Yes, either return or warranty exchange for a new one, I have not noticed this issue with my device at all.

I've been having the same issue and it definitely causes excessive battery drain. Sometimes toggling wifi off then on works. Other times it requires toggling mobile data off then on.
I had it happen just now and tried freezing 'my account' in titanium backup as suggested and my 4g indicator immediately turned off. Sweet! It seems that 'my account' is the culprit!
Edit: I really wish this topic wasn't merged...I think there were a couple 'wifi problem' threads talking about different issues. To clarify, my problem was that while on wifi my 4G indicator would sometimes turn on and consume more battery and (sometimes) force all data to use 4G instead of wifi. Really annoying!
Sent from my SGH-T989 using xda premium

[Q] WiFi not working properly? 3G/4G stays on
My mobile data doesn't always turn off when wifi is on. Any ideas?

same here ,dont know what that is

Bump.........

One X thinks it is connected to WiFi when no longer in range

I've noticed of late that my One X thinks that my home WiFi is still in range, and that it's connected, even when I am not at home. To get mobile data to work I have to turn WiFi off and back on again to make it work properly.
Anyone experiencing the same?

OliverHaslam said:
I've noticed of late that my One X thinks that my home WiFi is still in range, and that it's connected, even when I am not at home. To get mobile data to work I have to turn WiFi off and back on again to make it work properly.
Anyone experiencing the same?
Click to expand...
Click to collapse
Nah, there is an option for disconnecting the wifi if there is no good connection.
also there are wifi fixing tools in the market, switching between aps etc.
also there are tools for switching to 3G if WiFi is under some threshold.
Unfortunately you must search and test. Did my fair share of that.
Also check out that option in the settings if you have it checked.

PAGOT said:
Nah, there is an option for disconnecting the wifi if there is no good connection.
also there are wifi fixing tools in the market, switching between aps etc.
also there are tools for switching to 3G if WiFi is under some threshold.
Unfortunately you must search and test. Did my fair share of that.
Also check out that option in the settings if you have it checked.
Click to expand...
Click to collapse
Regardless of that setting, it should know that the Wi-Fi it was connected to is no longer there.

OliverHaslam said:
Regardless of that setting, it should know that the Wi-Fi it was connected to is no longer there.
Click to expand...
Click to collapse
Okay and? Are you completely stock. And you tried already factory reset, and this happens with every AP on the latest sw ?
Then you could try to return it for repairs?
Sent from my HTC One X using Tapatalk 2

Mobile data sticks even on Wifi

I'm having this strange issue that I've never before seen on Android. Whenever I'm connected to Wifi, the phone seems to maintain a mobile data connection. Also, I'm on T-Mobile with wifi calling enabled, and it seems to stick to the cellular network even with wifi on. Am I the only one?

Ive got something similar, my battery stats show Wi-Fi is on even though its off. Rebooting the phone sorted it out.

Prasad said:
I'm having this strange issue that I've never before seen on Android. Am I the only one?
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Click to collapse
elvinrush said:
Ive got something similar, my battery stats show Wi-Fi is on even though its off..
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Click to collapse
Did you, guys, clear those two? Please!

Oh that makes sense. Thx

Prasad said:
I'm having this strange issue that I've never before seen on Android. Whenever I'm connected to Wifi, the phone seems to maintain a mobile data connection. Also, I'm on T-Mobile with wifi calling enabled, and it seems to stick to the cellular network even with wifi on. Am I the only one?
Click to expand...
Click to collapse
My M8 does this, so I would expect the M9 to do this as well. However the mobile data is not used; the icon for mobile data just stays up. It passes data on WiFi when a WiFi connection is available. The WiFi icon is the only one that comes and goes.
I have unlimited calling so I don't use the WiFi calling, can't comment on that.

My mobile radio stays active even while I'm on WiFi calling. Which, I'm pretty sure the mobile radio should completely turn off..
Mobile data icon stays on as well even without wifi calling, same as you.

I think the stickied mobile data icon is a non-issue, but the fact that it sticks to cellular network, pointlessly draining excess battery (especially in a region with poor network connectivity) when Wifi calling is enabled, is seriously annoying.
jauhien said:
Did you, guys, clear those two? Please!
Click to expand...
Click to collapse
Both settings are unchecked, like in your screenshot.

Just got mine too.
Am noticing the same problem. Mobile data stays on.
Hopefully there is a fix coming out?

Figured it out (For T-Mobile WiFi calling variants only)
Go into WiFi Calling settings (there should be an icon in your status bar)
Select the bottom "Do not use Cellular". This will disable cellular when WiFi/WiFi calling is enabled.
Cellular was enabled for calling handoffs (when you leave a WiFi calling area, the call gets handoff'd to the network)

wifiguru said:
Figured it out (For T-Mobile WiFi calling variants only)
Go into WiFi Calling settings (there should be an icon in your status bar)
Select the bottom "Do not use Cellular". This will disable cellular when WiFi/WiFi calling is enabled.
Cellular was enabled for calling handoffs (when you leave a WiFi calling area, the call gets handoff'd to the network)
Click to expand...
Click to collapse
Nah. That solves nothing. I don't want to be disconnected when leaving Wi-Fi. I just want cellular to be off when in Wi-Fi range, which was automatically managed with the same setting on previous phones.

Prasad said:
Nah. That solves nothing. I don't want to be disconnected when leaving Wi-Fi. I just want cellular to be off when in Wi-Fi range, which was automatically managed with the same setting on previous phones.
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Click to collapse
Correct, all that setting does is completely disable cellular. Even if you leave Wi-Fi, or disable it.
On all previous T-Mobile phones with Wi-Fi calling using "Wi-Fi preferred" it would completely disable the cellular radio.
Now, when I have poor signal but am using wifi calling, my phone is constantly searching for signal. Switching between 2g/4g/lte.

Yeah, you guys are correct.
Left home this morning, no Cellular.
Well, shoot...

Boo

Difference between Smart Switch and Wifi Calling....and performance questions

I've read (and THINK I understand) what smart switch is supposed to do (going all the way back to the Note4.
And it seems like the complete opposite of what wifi calling does.
Anyone care to explain the difference or real reasons one is used over the other?
Also on a related note, in the developer options category there is an option to turn on "Aggressive Wi-Fi cell h.."
With the explanation "switch from wifi to mobile networks more quickly when wifi signal is weak"
Kind of self explanatory and my question would be real work use. If you have unlimited data, any reason you would NOT want to check this?
Unless this just sounds great, but doesn't work well......
Thoughts?

vtcats said:
I've read (and THINK I understand) what smart switch is supposed to do (going all the way back to the Note4.
And it seems like the complete opposite of what wifi calling does.
Anyone care to explain the difference or real reasons one is used over the other?
Also on a related note, in the developer options category there is an option to turn on "Aggressive Wi-Fi cell h.."
With the explanation "switch from wifi to mobile networks more quickly when wifi signal is weak"
Kind of self explanatory and my question would be real work use. If you have unlimited data, any reason you would NOT want to check this?
Unless this just sounds great, but doesn't work well......
Thoughts?
Click to expand...
Click to collapse
Smart switch imports the data from your old phone when you switch to a Samsung phone; WiFi calling routes voice traffic over WiFi when available.

Sorry, I meant to say Smart NETWORK Switch. It says your phone will be connected to a mobile network if Wifi becomes unstable.
And Wi-fi calling kinda of says the exact opposite. If mobile becomes unstable, it will switch to Wifi......
Anyone?

Many times.. even when the wifi signal is weak, as long as wifi is turned on, the phone will remain connected to it. This especially happens when you are just pulling out of your house and you are trying to get to google maps for directions or something.. but because the phone is still connected to your home wifi, it'll remain so and since the connection is weak, you won't be able to browse or anything and google maps may say "no network connection".
I believe what Smart Network Switch does, is that in such cases, it'll immediately switch to mobile data.

androidbuff123 said:
Many times.. even when the wifi signal is weak, as long as wifi is turned on, the phone will remain connected to it. This especially happens when you are just pulling out of your house and you are trying to get to google maps for directions or something.. but because the phone is still connected to your home wifi, it'll remain so and since the connection is weak, you won't be able to browse or anything and google maps may say "no network connection".
I believe what Smart Network Switch does, is that in such cases, it'll immediately switch to mobile data.
Click to expand...
Click to collapse
This happens to me every morning in my driveway trying to route Waze. I get a weak wifi signal that the phone hangs onto and I get a no network error from Waze.