Comment 18 for bug 1000208

NM will roam automatically if there is a network with a higher signal level, once the difference passes a particular point. Perhaps the closest AP is just prone to more interference, and setup on a busy channel?

Regardless, if it's location-related, it's mostly a matter of signal levels and interference, busyness of a particular channel or whatnot; so not an issue with NetworkManager.

I'm willing to give this a bit more testing, just in case there really is something suboptimal that we can fix in NetworkManager or wpasupplicant.

Can you please run:

sudo python /usr/lib/NetworkManager/debug-helper.py --wpa debug --nm debug

Reproduce the issue (without restarting if possible, because then you'll want to run that script again); and attach the full contents of /var/log/syslog?

Thanks!