Trying to set up a friends, he does not speak English and lives 50 miles away. Been there twice, no go so far. I can see both the ESSIDs of the dir-600 (took advice to give each essid a different name, after using the same name failed), but no connection. Followed the tuts on the dd-wrt page. Using latest firmware image. Tried enabling and dis-enabling WPA. There must be a catch somewhere. It has a ralink chipset, BTW. A lot of contradictory info in the few forum posts.
Sorry if this post is lacking, I can't remember all the details.My replies will be slow as I will have to translate and email him the questions.