Hi OP,
I agree with Drew, it would be best to create a new conversation for this with a screenshot of the output.
However, taking a bit of a shot in the dark, is the baud rate set correctly? The WM3600's console port runs at 19200 baud, and most PuTTY and most other terminal emulators default to 9600 baud. A baud rate mismatch could lead to garbled text being seen.
-Brandon