So I have had random issues using my T-Mobile UMA service at my house. Typically things work a lot better in the basement or the first floor where I connect to a Linksys WRT54Gs running sveasoft’s Tailsman Basic firmware. I have previously had a ton of connection issues with the UMA service when I am upstairs in my office where my Blackberry 8320 cell phone is connecting to a Linksys WRT600N with default firmware. I have done a lot of searching around the web as well as playing around with all of the devices. I don’t think there is a specific setup that is required to make things work however below I describe what I believe to be the tweaks that have helped me the most.