Hi,
I'm using my Galaxy Tab's "Mobile AP" functionality (wifi hotspot). But
it seems to work well only when the Tab is plugged in. When on battery
(even full) the connection from the wifi clients is really flaky: the
wifi signal itself stays up but packet flow seems very irregular, start and
stop all the time. I can't keep a stable ssh session on a remote host,
after a few seconds uptime it gets stuck, then resumes, etc. Once the
Tab is plugged in no more problem. This is with a JMD/JME firmware.
Anyone had the same issue?
Is there a setting I could tune somewhere?
Thanks,
Related
I have just set my mobile web connection to 'always on'. I've done this through the 'Advanced Config' app - GPRS auto attach: Enabled. Will this take more battery? I've read old posts for other phones, that claim this does kill battery but I've also found a post in this forum that says it doesnt! http://forum.xda-developers.com/showthread.php?t=546359
I have had endless trouble with my data connection - not being able to connect to internet, google maps, email etc and the only way to fix it was to either toggle airplane mode on and off or to actually soft reset. I'm hoping that having the GPRS auto attach will solve this trouble.
Any thoughts?
I'm doing experiments now with the battery life.
I charged phone to 100% and left in standby overnight with mobile web connection running. When I checked this morning, after 9 hours battery life was at 98% (received 1x sms and 1x email during the night).
Mobile web has now been connected for 17.5 hours and battery life is at 79%. 22mins device usage, mostly internet. No calls today and just the 1x sms and 1x email (Im not very popular - as is evident from the lack of replies to my post )
I will do the same experiment tonight with mobile web not connected.
Hi
It doesn't drain the battery. You have a permanent connection to the network anyway to receive phone calls. When you "attach" a data connection you're phone obtains an IP address and keeps it. To get an IP address requires an initial bit of talking to the cell and once it has it, that's it, it's doing nothing unless being actively used. If you disconnect all the time you will use more power as it costs power each time you have to negotiate for an IP address. Networks also prefer the connection to remain on as it cuts down on network traffic.
The only way your power is used more is if you have an application that is using the data connection continually.
Regards
Phil
Thanks PhilipL, exactly the answer i was hoping for as my connection seems a lot more stable since enabling auto attach.
I'm using Resco Radio to stream live radio, and, while it works fine over hsdpa, I find it buffers every few mins over WLAN.
I have the WLAN set to "best performance", and am approx 75cm from the router - signal isn't an issue. I work in an IT call center so I have tested it with routers there and get the same issue - its the phone not the routers.
I notice that the WLAN symbol at the top of the screen seems to go to "connecting" when this happens, its as though it just drops out intermittently?
Has anyone else experienced similar or is my device possibly faulty?
Thanks!
I am using Wifi all day here in the states (as the phone only supports edge here).
I never had that problem. Wifi is super fast for me.
I did notice though that I think that after I installed NET3.5 Wifi became unstable.
So I removed .NET3.5 and it seems to be working fine and very stable now.
My Wifi setting are "balanced" and I have to admit that with this phone the Wifi power consumption is super low, comparing to other devices.
WiFi working fine here.
I'm using WiFi all day through work's WiFi and at home as well - both WLANs are perfectly stable and super fast here.
I have it set to "balance" for the performance. I'm also amazed how quickly it connects to the WiFi access point when its brought out of 'sleep' mode! MUCH quicker than my Touch Pro!!
FWIW, I have .NET 3.7 installed - no problems at all.
Ok, uninstalled .net...
That didn't help!
However I think I have figured it out, the stupid thing turns wifi off (even though it is in use) when the screen has been off a few seconds, I guess to save power, thereby interrupting my stream!
Now I just need to find a way to force it to stay on, battery be damned!
I like to listen to the radio when I'm going to sleep, so its plugged in to charge overnight anyway, and I turn off wifi when I go out....
have a look at this registry key
[HKEY_LOCAL_MACHINE\Comm\BCMSDDHD1\Parms]
there's
HTCKeepWifiOnWhenUnattended"=dword:0
Hello. I'm sure that this must have been discussed but I cannot find the answer using search. As is surely normal, I use WiFi within the home and GPRS when there is no WiFi available. If WiFi is connected and I go out for a short while, then when I get back in a WiFi area, the WiFi is still connected. However, if I go away for a long time, and GPRS is used for perhaps a regular weather update, then the WiFi disconnects and has to be manually reconnected upon return to home. This leads to GPRS being used in a WiFi area unnecessarily if you forget to re-connect WiFi. Is there a WiFi connection timeout value or any other setting that can be changed? My old TyTN II did not have this problem. Thanks.
Try this CAB
It disable disconnecting WiFi when phone is in sleep mode and with this phone automaticly connects to WiFi when Leo will be in range.
Thanks Franq_23_pl. I think that the CAB just stops WiFi disconnecting when the device is in sleep mode. That will just drain the battery, surely? My old TyTN used to disable WiFi when in sleep mode, but as soon as you switched it on again, WiFi would be enabled and it would connect if in range. The problem with my HD2/Leo is that if I am away from my WiFi for some considerable time (ie, most of the day), then when I get back home and switch the device on, WiFi is disabled, and I have to manually toggle in on. So my question is..... What are the circumstances that cause WiFi to disable itself, and Is there some way of stopping it happening?
OIC now. I think you having some battery saving app and this app turning off WiFi when iz not used. What apps or registry mods you have installed on Leo?
You have the same behavior after hard reset?
My Leo don't disable WiFi. When i go outside (for ex to work) and back after few hours my Leo connecting to my home wireless network automaticly.
I remember, that i had the same problem like you and it was caused by app, which had duty to save battery.
Hi,
I have the strangest behavior with my wifi, the phone keeps connecting and disconnecting between 4G and WiFi every few seconds when i'm at home. This drains my battery in couple of hours and I can't do anything unless i turn off WiFi. I have smooth transition between 4G and Wifi enabled in settings (i've tried disabling it, all it did was to speed up connect and disconnect between 4G and wifi) Anyone else experiencing this strange behaviour with WiFi and 4g?
I have the same behavior. You need to disable "Smart network switch" under the advanced Wi-Fi settings. I have not found a fix that will allow leaving this feature enabled.
I disabled the "smart network switch" and my phone still refuses to connect to known networks that are well within signal range. It may be staying connected better once connected but I have my wifi sleep with the screen so when I wake it up, the wifi should re-connect. Not working well at all. This 5.0 update sucks, you'd think that since Verizon takes forever to get updates to flagship phones that at least they'd be well tested and stable, NOT!
Hey,
I recently got a used Lenovo A7600-F tablet from my office because they weren't using it anyways.
Everything seems to work perfectly fine - except the wifi connection.
Code:
Model: Lenovo A7600-F
Android: 4.4.2 (no further update available for that model)
Kernel: 3.4.67
Build: A7600F_A442_000_029_150401_ROW
Here is the thing:
I disable/enable wifi
I click my home network and enter the password
Nothing happens for ~2 seconds
"Failed to connect to network" (no "connecting" or similar)
To make sure my WPA2 security isn't the problem, I made an unprotected hotspot on my phone. Absolutely identical problem.
One thing I noticed: The tablet is able to find all the networks around me and updates their signal strength in the list without any problems. As soon as I try to connect to one, it takes around 2 seconds until it says "Failed to connect to network". If I then try again, the message pops up instantly with no delay for all networks. From that moment on, the list also stops updating and can't be refreshed until I turn my wifi off and on again.
I downloaded "Wifi Analyzer" and I can see all the networks' strength values moving. I can close the app, do something else or go to standby and come back to see the values still updating. But as soon as I try to connect to a network, it will give that error again, stop updating the list in the wifi section and Wifi Analyzer will not be able to find any more signals. If I close that app and bring it back up now, the list of networks will remain empty. Same with the networklist on the wifi settings. Turning wifi off and on again resets the whole thing.
In short: My tablet sees all networks around me and updates them, but gives an error ("Failed to connect to network") as soon as I try to connect. Then no more wifi updates until i disable/enable it again.
Factory reset did not help, I let the battery drain and charged it back up - no success! I also tried an app called "Wifi Ruler", which was mentioned to fix a similar problem in a post I found on another forum. Connecting through that has exactly the same effect.
Does anybody have an idea about what is going wrong and what else I could try to fix this?