I can connect to my home network but not others? (Wireless)

Hey all… using 11.4 with GNOME on an Acer 5517 Aspire. No hiccups so far at all, and I’m loving the distro. Wifi worked almost out of the box, after I installed firmware. It connects to my home network without any trouble at all, never disconnects… today I’m at an out-of-home location, and connected to a network that I have never had any problems with on Windows or Ubuntu 11.04. It was connected for just a second, then disconnected. Same with the other 3 public networks accessible. I’m using NetworkManager, and as I have no network access I can’t install the needed dependencies to go back to traditional ifup.

Any idea what might be causing a problem like this? I’ve never seen something like this in my Linux journey. Thanks in advance, will do my best to post any outputs I can, though I’m obviously accessing 'net on another machine.

Look into NetworkManager logs, while trying to connect to the network. To do this live use :

tail -f /var/log/NetworkManager

You can post the logs here coping the log file by for example copying it to a pendrive.

Best regards,
Greg