I notice that on my SGS4G running Gingerbread, that if I enable wifi the 4G icon goes out, and if dig deeper ifconfig shows just the pdp0 mobile interface is replaced by the eth0 wireless interface.
A colleague of mine has a new SGSII also running Gingerbread and when he enables wireless he gets both the wireless icon and the 4G icon. ifconfig shows both the pdp0 and eth0 interfaces alive at once.
Any reason for the difference in behavior?
I only notice both at same time when download SMS.
Sent from my SGH-T959V using Tapatalk
My wireless AP is going crazy at my house. Its custom and has some driver problem a Co-worker of mine is looking into.
What happens is the ssid still broadcast, but the AP doesn't pass traffic. On my phone I see the wifi icon and 4G when this happens. If I reset the AP so wifi works again (for another hour) the 4G icon disappears.
Maybe the sgs2 is able to connect, but not able to pass traffic. If you had a static build of netkit ping, it has an option to specify the interface to ping out.
Sent from my SGH-T959V using xda premium
Actually, I think I remember koush saying something on g+ about udp not working over cell networks. Maybe im wrong. You could also use tcpdump.
Sent from my SGH-T959V using xda premium
Lol, nevermind. Ping works.
Sent from my SGH-T959V using xda premium
The 4G icon goes away because you would not need the 4G data service if you have a WiFi connection with an active internet connection. It is standard even not for 4G signal, it does that with edge, 3g, and HSPS. I believe it just leaves a standard GPRS connection open with the tower. All to save battery.
Related
Hi to all, does anyone have problem WiFi connection its stops working then, the icon shows full bars but if I'm trying to use its using the 4g connection. Like both icons are on and its using the 4g connection, sorry I don't know how else to explain.
Sent from my LG-P999 using XDA App
The thing is it doesn't turn off the 4g radio once u connect to the wifi it shows both of them connected and when I try to use the speedtest app its testing the 4g connection then changes to wifi
Sent from my LG-P999 using XDA App
I saw that this morning. It just took a while for it to actually switch over to wifi and I don't think the 4g icon ever went away.
I'm trying my best not to use wifi because I'm testing T-Mobile's service to see if it works for me.
Sent from my LG-P999 using XDA App
I'm having a similar problem. I have a terrible T-Mobile signal in my house so I always have wi-fi enabled. I've noticed a couple of times that my phone tries to use the mobile data instead of the wi-fi data even though I have no mobile signal and full bars on the wi-fi. I have to either go to airplane mode, then re-enable the wi-fi, or un-tic the "use mobile data" box in the wireless settings, and then it will switch to wi-fi and it works fine. I've had the phone for two days and this has happened twice.
One other thing I've noticed is even when I have a good signal, MMS is reluctant to send over the mobile network. If I reboot my phone and then send the message it sends right away.
It also takes a while for it to switch to wifi for me as well. Once it's on, it's on though. I noticed that to enable it quicker, turn it on and go into Wifi settings where you see all the available networks. It appears to connect instantly from that screen.
Yes this issue is starting to get real annoying. I powered on this morning and both wifi and 2g connected. 2g wouldn't drop until I toggled the data connection
Sent from my LG-P999 using XDA App
here's a thread that may help. i think it's the same issue you're describing.
http://forum.xda-developers.com/showthread.php?t=1044349
If this has been asked and answered, I apologize. Can't figure what to search for to find it.
I have a multi-story house and one wifi access point simply doesn't cover it all. I've wired up one for upstairs and one for downstairs. One of the two has DHCP enabled. Both have identical SSIDs and security. I do not know to change BSSIDs (some kinda hidden SSID?) Have tried setting both to same channel and to different channels - currently on 7 and 11.
My charge will not automatically switch between them. Under EE4 I could turn off wireless and when I turned it back on it'd connect to the stronger signal. Under all the gingerbread builds it connects to one and even after turning wireless on and off it connects to the original one. Under GB I can only switch between them using Wiifi Analyzer's connect feature. Under GB I've taken to setting up the SSIDs to different values so I can at least manually switch between them in settings. This is a royal pain as I walk between the two floors all the time.
What am I doing wrong? Doesn't anyone else have this problem?
Instead of multiple routers, try using wireless repeaters or extenders. A repeater picks up a wifi signal and rebroadcasts it for better reception. A network extender has an ethernet port that connects to your router and makes an access point without making a new network.
Sent from my Gummy Charged GBE 2.1 using XDA App
I prefer dd wrt routers using WDS. There are lots of resources about this. Or just buy a some access points. I find that repeaters have interference issues.
Sent from my SCH-I510 using XDA App
Well, actually my second router is currently setup in firmware to be an access point.
Have either of you guys observed a Charge w/ GB actually handing off correctly? If so, at least I'd know that it's my setup.
Sent from my SCH-I510 using xda premium
A repeater is the best solution? The upstairs location just barely picks up the wifi from downstairs. Seems like you'd lose a lot of thruput that way.
Sent from my SCH-I510 using xda premium
Tried the app "Wifi Manager"? It might help you. There a bunch others. I would try them all out to see if they help your situation.
WiFi Jumper fixed this problem for me. Well worth the money.
Sent from my SCH-I510 using xda premium
BillLee3 said:
WiFi Jumper fixed this problem for me. Well worth the money.
Sent from my SCH-I510 using xda premium
Click to expand...
Click to collapse
Seems like a nifty utility. Easier than setting up WDS, but I still think that WDS is the bees knees when it comes to having rock-solid wifi everywhere you want.
Now to be specific I'm not talking about cellular network I'm talking about sharing a wifi signal thru my phone because my phone can reach the signal but my computer cannot is there any way for me to connect and beacon the signal thru my phone I believe it's called ad hoc but not sure
Sent from my HTC Sensation using XDA
see if you can share the connection via usb or bt tethering
I did it once not sure how i used my phone as a wifi modem don't ask me how or what app or setting it was
Sent from my Sensation using xda premium
wifi shuts down as soon as I turn on tether
Sent from my HTC Sensation using XDA
It's probably easier to get a wifi repeater.
It's not as cool from a ""Look at the awesome nerdy stuff I can do" perspective...but it's probably the easiest way.
Using your phone as a repeater will be unfriendly to your battery life.
Had it pluged in comp lol
Sent from my Sensation using xda premium
USB tethering shares wifi (at least it did in my previous phones, not tried on Sensation/CM9).
The only network I connect to is my home WIFI... here come's the stupid question...
when I leave the range of my home network it will switch to 4G
but... will it switch back to my home network when i am in range
in essence, does it prioritize wifi over a 4g connection if a profile exists?
i ask because i had downloaded VZW auto wifi on... seems like it might just be bloat
anyway, thanks all
I'm fairly certain all Android phones "prioritize" Wi-Fi over mobile data. If you leave LTE enabled then turn on Wi-Fi while home, you can see this yourself.
Sent from my SCH-I535 using xda app-developers app
Yes. If you leave your wifi on on your phone and at home, when you get back home it will auto connect to the wifi cause it scans for available points every so often
Sent from my SCH-I535 using Tapatalk 2
Hello all,
So it seems as though the WiFi network at work is draining the battery on my phone way faster than my WiFi at home. What would the cause of the exponential drainage at work and not at home?
We have Ruckus wireless network setup at work, and I have an ATT 2Wire wireless router at home.
My work wifi was crazy noisy... Use the app Network Log to check traffic when you're at work and at home.
The thing to check for is if the the kernel sends and receives a lot of packets at work. If it does, try switching to ktoonsez's kernel over in Original Android Development. He implements some TCP congestion code that silences my work wifi.
Sent from my SCH-I535 using xda premium
So it seems as though my work WiFi is pretty noisy. I currently on IMOs 1.5 kernel and am skeptical to switch. But I will try it out and see what happens
Sent from my SCH-I535 using xda app-developers app