Re: [WIRELESS-LAN] Android wifi continually receiving data bursts

[Ethan Sommer]

My experience would also point to low cellular signals rather than wifi. Ask him to turn off wifi for a day and see if battery life improves, my guess is that it won't be much better. On 07/08/2012 10:26 PM, Scott Smith wrote: I have not seen such an issue, yet.  I have seen that our campus buildings "suck" the battery life as the cellular signal levels are very low and in-turn the Android device is searching their primary signal carrier all day.  I'm not at all dismissing your question or the possibility of this happening, I'm just putting out there what I've seen so far in our buildings.  If I get other reports I'll let you know. On Sun, Jul 8, 2012 at 6:12 PM, Wright, Don <donald_wri...@brown.edu> wrote:       I've heard this same complaint from a user on our campus.  He claims his droid lasts all weekend on his home wireless, but runs down in a day on our campus.  I'm not sure why this would be, assuming he runs the same apps all the time.  My only thought was that his wi-fi driver was actively scanning (aggressive roaming) the other access points he would see here looking for better signal.  Anyone have any other ideas ? - Don Wright Brown University Please consider the environment before printing this email. `·.¸¸.·´¯`·.¸.·´¯`·...¸ ><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º> On Tue, Jul 3, 2012 at 5:07 PM, Hurt,Trenton W. <trent.h...@louisville.edu> wrote: I have started getting complaints from users regarding battery life on android devices when connected to our campus wifi.  The issue is being seen when you install a type of bandwidth meter app on the device.  The one I use is  android status and I look at the network section to see the Rx and Tx statistics.  Once connected to wireless the device still receives bursts of traffic, at least according to the app on the device.  We are cisco wifi shop and I’m running 7.2mr1 code on the wlc’s.  Has anyone else heard or seen this issue?     I found this post  http://forum.xda-developers.com/showthread.php?t=1738171   which states…   This is simply because your wifi antenna still "hears" the data going through the wireless network on which you are connecter. Even 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.     I have tried to increase the DTIM setting on one of the wlans and it didn’t help.  Any suggestions?   Thanks Trent       Trenton Hurt, CWNA, CCNP(W), CCNA(W), CCNA(V), CCNA(R/S) Wireless Network Administrator University of Louisville Phone (502) 852-1513 FAX (502) 852-1424   ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- Ethan Sommer Associate Director of Core Services Gustavus Technology Services 507-933-7042 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.