I have the new T-Mobile MDA. It has built in wifi. I use the Linksys SRX
200 router and currently have two Dell laptops and one HP ipaq using the
network on wifi with no problems.

The MDA unit sees my connection, I enter the WEP and it will not connect.
T-Mobile and Linksys were no help.

The MDA connects elsewhere, so I know the wifi function works.

Any advice?