WinXP and Hyperterminal? Can you hear me over there in 2003?
Use PuTTY like everyone else.
https://www.chiark.greenend.org.uk/~...ty/latest.html
Just make sure that each port on your switch is set to provide untagged traffic to end devices (PCs, printers) and that any tagged traffic is going out a port that is connected to something that expects tagged traffic.