As this seems to still be an ongoing issue and I've had my unit for some crazy amount of time, after testing the latest firmware every month or so I seem to have finally cracked this issue.
No promises that this will work for everybody but it certainly worked for me.
I have my MT set to some pretty vanilla standards
I have static channels configured
But again, all really normal bizwack.
The only change required on my onion in order to connect cleanly was the following
root@Omega-2EB7:/etc/config# cat wireless config wifi-device 'ra0' option type 'ralink' # option mode '9' # This doesn't seem to work on an MT option mode 'sta' # This works on an MT option channel '6' # This shouldn't be required to be a number and can be left as 'auto' option txpower '100' option ht '20+40' # Meh, 20, this works but so does 20 or 40 from memory option country 'AU' # Whatever your country is option disabled '0'
I'm not going to say that this is the magic bullet but it certainly got me up and running.
Caveat I still don't have network access other than ICMP. I think this is a firewall issue on the unit itself but I can't work it out yet. This is just my first step so sharing in case it corrects the problem for anybody else.
Hope that helps somebody