Public bug reported:

Binary package hint: network-manager

After I resume from suspend to ram, often NetworkManager is unable to
reconnect to my wireless network. I am running Ubuntu Feisty Fawn 7.04
on a Dell Inspiron 6000 with a pentium m processor and my wireless
networking card apparently uses "intel inside centrino(tm) MOBILE
TECHNOLOGY." All that has to be done to reproduce the bug (on this
computer, at least) is to suspend to ram, and then resume.

Even killing and restarting NetworkManager does not fix the problem.
Only restarting the computer allows me to reconnect to the network. I
have not tested if there is the same problem with my wired network,
since I am using a laptop and rarely use the ethernet cable.

I originally posted the problem as a question at
https://answers.launchpad.net/ubuntu/+question/19780, and Oliver solved
the problem by telling me to install wicd instead of NetworkManager.
That has worked for me so far. There is more information on that link
concerning the outputs of "dmesg" before and after being unable to
connect to the network, and the output of "iwconfig" and "sudo
NetworkManager --no-daemon".

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New

-- 
NetworkManager does not successfully reconnect to a wireless network after 
resume from suspend to ram.
https://bugs.launchpad.net/bugs/177053
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