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Seems like when i answer the phone my GPRS connection is cut off. Is there any way around this?
My understanding is you get one channel. If you're not using the phone it's good for data, but it disconnects data to free the channel up for voice. I read somewhere that the network and technology, in some places, supports concurency but I've never seen it happen that way.
bkeahl said:
My understanding is you get one channel. If you're not using the phone it's good for data, but it disconnects data to free the channel up for voice. I read somewhere that the network and technology, in some places, supports concurency but I've never seen it happen that way.
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due to the way in which GSM operates most networks prefer not to allow simultanious connections.. resulting in your packet data connection being disconnected...
with 3G (wcdma) you can speak on the phone and surf the net no problems....
roll on the hermes!!
:wink:
So the if the phone connects over wifi it drops the data connection that might've been present on your phone network connection. Is it possible to configure your phone to maintain both wifi and 3G/HSDPA connections at the same time?
I require this because my operator provided (H3G UK network) Skype application only runs on 3G and I have to keep turning off wifi for it to work.
Funny, I find this feature great!! With my WM phones I never knew if it was using wifi or my data connection....even if you can do this how do you make one app use one connection over the other?
Sent from my GT-I9000 using XDA App
Good q, i'd also like to know if it's possible...
Sent from my Samsung Galaxy S! ^_^
You can try droid wall, and configure it to block wifi for skype, it may solve your issue.
Sent from my GT-I9000 using Tapatalk
Hmm, doesn't sound like that will work, because the phone has already dropped the phone network data connection as soon as I get back home onto my home wifi network (due to prioritisation?) I want the phone to maintain both so I can receive incoming Skype calls at home with fiddling with my phone. I understand why the phone does it and it is sensible for it to do so in most cases, but just not for my usage requirements!
Is it a software/hardware limitation that wifi and phone network data connections can't be open at the same time?
Install Nimbuzz. It supports Skype without that bulls**t restriction. It doesn't support group chats though.
Tundraswan said:
So the if the phone connects over wifi it drops the data connection that might've been present on your phone network connection. Is it possible to configure your phone to maintain both wifi and 3G/HSDPA connections at the same time?
I require this because my operator provided (H3G UK network) Skype application only runs on 3G and I have to keep turning off wifi for it to work.
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if WiFi is on, and 3G is on
the phone automatically uses WiFi first
AllGamer said:
if WiFi is on, and 3G is on
the phone automatically uses WiFi first
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I lose the "H" or "3G" notifier when the phone connects to wifi, that's why it looks like it's purposesly dropping the data connection once it picks up my wifi, I can't see a way to maintain both simultaneously.
I'm using "Skype for 3" provided by my network, it has special integration on the 3 network which allows me unlimited Skype usage (inbound and outbound) without it eating into my data plan. So with this benefit I don't really want to use an alternative app.
I want to keep Skype running all the time so I can receive calls on it, but once I get home, the wifi kills the "H"/"3G" connection, which means my Skype can't receive calls.
the icon isn't there but i think the data (H / 3G) is still running in the background, incase your Wifi fails.
wifi is the... PREFERRED network?
have you tried getting your friend to call you via skype while you're on wifi?
On my Xoom, Verizon 3G kicks WiFi butt. This shouldn't be.
I thought maybe it's the WiFi network(s) I have been connecting to, but I have sampled a variety of networks including my home network with a very strong signal.
Quite a few 'time outs'. Symptom really seems to be if the connect is idle for any length of time, it disconnects. I quite regularly have to do something ''twice', including in 3 different browsers, to push through to a new connection.
Any similar from other users, possible diagnosis's or solutions?
Thanks in Advance.
I think there might be issues with some access points and different tablets. I've heard of similar things with laptops and ipads as well.
The general consensus here however is that the xoom has the fastest wifi out of any tablet device. I don't have the link but I believe one of the review sites tested this.
-Bauxite
Sent from my Evo 4G
Thanks for the reply. Further reseach shows its apparently a known issue and is being looked at, for example:
http://www.xoomforums.com/forum/motorola-xoom-help/317-connecting-through-wifi-issues.html
And likely root cause:
https://supportforums.motorola.com/thread/46526?pubid=987654
A temporary partial work around is to change the WiFi disconnect policy to the "When screen turns off" setting. you will get a delay of about 5 seconds when first connecting to the internet after unlock, but apparently the memory leak is cleared when you reconnect this way. Continual long term browsing will eventually choke up.
No can't say as I have had any wireless issues, other than not being able to tether to my phone, but that's the phone's problem, not my Xoom, stupid Samsung.
Sent from my Xoom using XDA Premium App
I have had the browser FC on me after long wifi browsing. So this bug may have leaked out without getting fixed. i have tried the 3g that much but i will tonight and see what happens.
Just-in-time said:
I have had the browser FC on me after long wifi browsing. So this bug may have leaked out without getting fixed. i have tried the 3g that much but i will tonight and see what happens.
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Yes, that is one of the symptoms of the memory leak. We should see a fix eventually.
mjpacheco said:
Yes, that is one of the symptoms of the memory leak. We should see a fix eventually.
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Love the eventuall lol. Yeah its not that big of a deal. Its worth it to be a first 3.0 user.
I've definitely experienced this as well. Wi-Fi disconnects and won't reconnect unless I reboot or manually turn off/on. Question, if I use the temp fix to change the Wi-Fi disconnect policy, doesn't that mean my 3G will be used and therefore my allotment of 1Gb / month will be eaten when not using the device due to background sync? Is there a way to turn off 3G as well?
flippingout said:
I've definitely experienced this as well. Wi-Fi disconnects and won't reconnect unless I reboot or manually turn off/on. Question, if I use the temp fix to change the Wi-Fi disconnect policy, doesn't that mean my 3G will be used and therefore my allotment of 1Gb / month will be eaten when not using the device due to background sync? Is there a way to turn off 3G as well?
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Just turn 3g off... which is what I do, I will only have it on for road trips, ect.
Plus it will only use 3g if WiFi is not available.
Same issue
I had the same issue on my Xoom. Everything after long video streaming, the problem started and the video start to lag and eventually freezed.
If i try the turn off the wifi, it wil stuck at "turning off.........." forever untill i reboot it.
This is driving me insane!
When I have WiFi enabled at the office, my Samsung Galaxy Note (stock ICS, rooted) constantly receives incoming data and I haven't got a clue which setting, app or service is causing this.
SystemPanel registers a nonstop stream of incoming traffic at 8 to 10 Kbps.
TrafficStats shows an accumulation of Received data under Total WiFi, but can't seem to link it a particular app or service: after resetting the data, no processes appear but the incoming data keeps on growing.
All sync options are off, I've tried to kill every running app or service (one by one, all at once), I've tried to block all traffic using Droidwall. As soon as WiFi is enabled, the incoming stream is unstoppable. When switching to 3G, there's no incoming traffic.
But to make matters even more mysterious, I do not have this problem with my WiFi connection at home.
It only occurs at the office, only on WiFi and (as far as I know) only on my phone.
Any ideas?
This is simply because your wifi antenna still "hears" the data going trough the wireless network on wich you are connecter. Event if your phone doesn't asks for any data at the moment the traffic there is on the network will still be counted by the wifi chip on your phone.
It will be the same on any public network or if you have another phone or a computer connecter on the same wireless router and generating traffic.
Thanks for replying, John!
That sounds very plausible, but then I still have to figure out why only my phone is registering this traffic - maybe it's an ICS thing or brand specific?
And I'll try to 'reproduce' it at home by connecting a laptop at the same time.
I think that the above is correct. That may be default behavior.
Sent from my XT862 using xda app-developers app
Well, I've tried to connect several devices at once on my home WiFi network, but it did not reproduce the incoming traffic problem I experience at work.
There were a few incoming bytes registered, not nearly as much as the constant stream of 10 Kbps at the office network...
Your works wifi may be set up like that. Who Knows?
Sent from my XT862 using xda app-developers app
MrObvious said:
Your works wifi may be set up like that. Who Knows?
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Well, our it-department certainly does not.
You're probably right that this is normal behavior. I'll just have to figure out which drains less battery under these circumstances, WiFi or 3G. Thanks anyway for replying.
I'm on the mobile app, but if you have GSM then just switch to 2g until you use it.
Sent from my xt862 using xda app-developers app
Djezpur said:
Well, I've tried to connect several devices at once on my home WiFi network, but it did not reproduce the incoming traffic problem I experience at work.
There were a few incoming bytes registered, not nearly as much as the constant stream of 10 Kbps at the office network...
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About this, it is simply that at your office there is traffic on the network (download/upload) while at home simply having devices connected doesn't generate traffic or almost none. Start several dl on several devices (phone laptop) (guess 2-3 is enough, maybe even one but not sure, not en expert after all ) then you should notice signifficant traffic on your phone, I guess!
So interesting I find this thread because I have the exact same problem!!!!
How I noticed it...when I am at home I drop 1% battery on Wifi per hour. 10hours = 10% (sometimes less).
I go to work on the Wifi, I DONT USE ANYTHING ON THE PHONE and the battery is DRAINING LIKE CRAZY!!! 5%/h or more!!!
( I am in airplane mode in both place)
So I was thinking, WTF with this work wifi, i am not doing anything at all on it. Then I look at my wifi icon I have a constant RECEIVE icon. And I bet my phone does not go to sleep or something.
So why in the world my work wifi is draining my battery and the one at home is not. I will check tonight but I dont think I have traffic like this. I am registering 5-6kbytes/s for nothing. The explanation given above is hands-waving. I do not agree with it fully. YEs sure there are several pings and beacon emitted back and forth but i do not think it is enough to cause 5-6kbytes/sec . The wifi is not in Monitor mode and it only receives the packets destined to my phone.
This is madness!!!! BTW When I had a different kernel on back on ICS this behavior stopped. I will try to monitor again.
kalinusa said:
So interesting I find this thread because I have the exact same problem!!!!
(...)
This is madness!!!! BTW When I had a different kernel on back on ICS this behavior stopped. I will try to monitor again.
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Hey kalinusa, did you find a solution to this problem?
I'm currently on the SpeedMod kernel, but that does not seem to make a difference to the 'office WiFi behavior' (so I keep my phone on mobile data).
I don't want to speak out of my ass, because I haven't a clue how the app works.
As far as I can guess SSH tunnel may help you. I would hope someone else could tell me I'm right, but I'm probably wrong.
I have had this same problem with two of my devices. The first is a Samsung Captivate with the last AOKP ICS build. The second is a Google Nexus 7 with AOKP's first Jelly Bean build (it happened when I had stock as well).
This only happens when I'm connected to WiFi at my university. The down arrow on the WiFi icon is ALWAYS on and it drains the battery. At home, I don't have these problems.
I emailed my university's IT department but I'm not sure if there's anything they can do. Anyone have any suggestions? Thanks.
I have exactly the same problem, but I think I found the reason which is causing it. I think that some of the routers are capable of the multicast over the wifi and then we can get a constant wifi traffic. I tested it at home, where I have enabled multicast over wifi and my phone wifi receiving the data all the time, even if it is in sleep. Now I'm in the office where we do not have such capable router with multicast over wifi and my phone wifi behavior is as expected. When I will be at home I will test it again with my router and with disabled multicast over wifi and hopefully it will solve this issue.
danielo said:
I have exactly the same problem, but I think I found the reason which is causing it. I think that some of the routers are capable of the multicast over the wifi and then we can get a constant wifi traffic. I tested it at home, where I have enabled multicast over wifi and my phone wifi receiving the data all the time, even if it is in sleep. Now I'm in the office where we do not have such capable router with multicast over wifi and my phone wifi behavior is as expected. When I will be at home I will test it again with my router and with disabled multicast over wifi and hopefully it will solve this issue.
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More than multicasts it could be broadcasts, what are you reaceiving. For example if you don't use WINS server in Windows domain, all computers use broadcast to get IP address for a computer name (if you dont use DNS name, but that's another story). At home, where aren't many computers, there are very few broadcasts. But somewhere, where a large amount of computers is on the same network (not splitted to broadcast domais), number of broadcasts would dramatically increase
btw. if you connect a PC to the same network as your phone and stop ALL running applications (mainly instant messangers, web browsers, e-mail clients) you should see the same network bandwidth in use as on your cell phone.
More than multicasts it could be broadcasts, what are you reaceiving. For example if you don't use WINS server in Windows domain, all computers use broadcast to get IP address for a computer name (if you dont use DNS name, but that's another story). At home, where aren't many computers, there are very few broadcasts. But somewhere, where a large amount of computers is on the same network (not splitted to broadcast domais), number of broadcasts would dramatically increase
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Interesting. Roughly how many devices would need to be on the same network, to see that kind of traffic load?
-- Sent from my TouchPad using Communities
post-mortem said:
Interesting. Roughly how many devices would need to be on the same network, to see that kind of traffic load?
-- Sent from my TouchPad using Communities
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It depends on what you consier as network load. If you start a network monitor like Wireshark or MS Network monitor and even if there is one computer on the network, you wil see "some" traffic (from time to time a few network packets). To generate constant network load, you'll need a few dozens of computers. And it always depends on how the network is designed and what applications the computers run. If all computers connect to a server, the network load will be a lot lower than if the computers share resources among them.
Or you can design your network in such way, that you divide computers into segments, where computers can communicate only with computers in its segment (or with some distant servers). This way the network load will dramatically decrease, as computers from different segments would not interfere.
I currently only have one computer connected to my home network atm via wifi, and it keeps a constant broadcast going to my phone for some unknown reason. I thought it was my dlna server, so I shut that off, and it is still broadcasting _something_... Its causing quite a battery drain, and unfortunately I cant seem to find the root of the issue. I've trolled through my router settings -- multicasting isnt on -- so Im at a loss. =\
Spz0 said:
I currently only have one computer connected to my home network atm via wifi, and it keeps a constant broadcast going to my phone for some unknown reason. I thought it was my dlna server, so I shut that off, and it is still broadcasting _something_... Its causing quite a battery drain, and unfortunately I cant seem to find the root of the issue. I've trolled through my router settings -- multicasting isnt on -- so Im at a loss. =\
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It can be caused also with the Media servers which runs on PC, also DHCP etc. It is not easy to eliminate all broadcast traffic and sadly our phones react at all that multicast packets.
Ok I'm wondering if is it possible to bridge a wifi connection with my mobile data network so both work simultaneously and increase speed and also when you get home and wifi kicks in you dont lose internet access momentarily?
juan_carlos__007 said:
Ok I'm wondering if is it possible to bridge a wifi connection with my mobile data network so both work simultaneously and increase speed and also when you get home and wifi kicks in you dont lose internet access momentarily?
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On the first part, I'm not sure if you would be able to do that,. On the second part, if your wifi is on, it will always choose wifi automatically, if you're downloading a file. At least this is what I am lead to believe.
Sent from my Nexus 7 (2013)
Berrydroidcafe said:
On the first part, I'm not sure if you would be able to do that,. On the second part, if your wifi is on, it will always choose wifi automatically, if you're downloading a file. At least this is what I am lead to believe.
Sent from my Nexus 7 (2013)
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Yes but everytime you go away you loosr wifi signal and mobile network kicks in right? And vise versa. And every time it's switched from wifi to mobile network or the other way around if youre watching youtube, hearing spotify, or downloading something it cuts signal instead of smoothly transfering without losing internet access. Plus we could benefit of doubling internet speed by something like this.
juan_carlos__007 said:
Yes but everytime you go away you loosr wifi signal and mobile network kicks in right? And vise versa. And every time it's switched from wifi to mobile network or the other way around if youre watching youtube, hearing spotify, or downloading something it cuts signal instead of smoothly transfering without losing internet access. Plus we could benefit of doubling internet speed by something like this.
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Yes, that could happen, but there's not much you can do about that unfortunately.
Sent from my Nexus 7 (2013)
Really? That sucks, it seems something that it would get really good use of.
juan_carlos__007 said:
Really? That sucks, it seems something that it would get really good use of.
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It's not really a big deal with most because at the most the video you're watching or the file you are downloading will buffer for a second or two while transferring signals, which it would do normally, whether you're using wifi only, or traveling down the road, which it (buffering) will do without fail as it (signal) is passed from one tower to another. Some hand-offs are pretty rough.
Sent from my Nexus 7 (2013)