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[Princeton Uni] Android DHCP Issue

post #1 of 19
Thread Starter 
Quote:
What is the Issue?

Under some circumstances, a device running Android stop renewing its DHCP lease, yet continues using the IP address after the lease expires. Although the owner of the device may not realize there is a problem, this interferes with service to others on the network.

Circumstances Leading to the Issue

We do not have complete information about all the circumstances that lead the Android device to malfunction in this way.

We have observed that one situation in which the device can malfunction in this way is when the device chooses to remain attached to a Wi-Fi network while the device is asleep. If the DHCP lease comes due to renewal while the device is asleep, the device doesn't renew the lease. If the device remains asleep through the time that the lease expires, the device has allowed the lease to expire. However, the device continues to use the IP address.

Source

This issue occasionally frustrates our system admin. We get round this by manually refreshing the IP on our phones. The sys admin at my workplace informs me our director's iPhone also appears to do this, so perhaps it is more related to the wireless chipset used by smartphones rather than the Android OS itself.
Edited by t4ct1c47 - 4/20/11 at 5:42am
post #2 of 19
yep, this is a huge issue here aswell, and it is not just androids, it is iphones aswell. we just created there own wireless portal and dont allow them on our main network.
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post #3 of 19
My Xoom is constantly causing IP address conflicts with at least one device on my home network. I have to release/renew the IP on that device since the Xoom just picks up the same IP again. Definitely a huge issue that needs to be addressed ASAP by whoever is at fault here (the mobile device software, the router incompatibility with mobile device supprt, etc...).
post #4 of 19
Sounds more like a problem within the provider networks than it is within phone hardware. That or just an Android/iOS bug that can easily be patched.
Edited by Stealth Pyros - 4/20/11 at 7:33am
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post #5 of 19
Quote:
Originally Posted by Open1Your1Eyes0;13200793 
My Xoom is constantly causing IP address conflicts with at least one device on my home network. I have to release/renew the IP on that device since the Xoom just picks up the same IP again. Definitely a huge issue that needs to be addressed ASAP by whoever is at fault here (the mobile device software, the router incompatibility with mobile device supprt, etc...).

is your xoom running with 4g or is it just the wifi model?
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post #6 of 19
Didn't princeton ban iPads because they wouldn't release their IPs too?
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post #7 of 19
yes they did ban them, and we found that whit our business network macs are causing the same issues.
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post #8 of 19
i honestly thought this was due to my crappy wifi router smile.gif

i went as far as just assigning the device a static IP, so it wouldn't conflict with the other wifi devices in the house smile.gif
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post #9 of 19
Quote:
Originally Posted by transhour;13201036 
i honestly thought this was due to my crappy wifi router smile.gif

i went as far as just assigning the device a static IP, so it wouldn't conflict with the other wifi devices in the house smile.gif

nope is all up to programing and drivers written for the devices.
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post #10 of 19
Quote:
Originally Posted by downlinx;13200958 
is your xoom running with 4g or is it just the wifi model?

Mine is the Wifi only model.
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