[ 18.378210] ERROR!!! RTMPSetTimer failed, Halt in Progress!
I am quite confident that this is the problem.

I compiled this package against my 3.5.xx kernel and it spits out many, perhaps dozens of warnings but no errors. When we compile from source code, the proof test is if it actually works. Obviously, in your case, it doesn't. I only have three suggestions.

* You might try the Windows XP driver and ndiswrapper.

* You might email the developers and ask them:
author: Paul Lin <paul_lin@ralinktech.com>
In a few cases, Ralink has sent out a revised package. If you get one, please share it with me so I can make it available in my Dropbox for others in the same circumstance.

* You might try Ubuntu 12.04 LTS that uses a 3.2.xx kernel.

I am sorry I don't have a better solution.