Networking Issue - 3Com Switch

Question

Not much of a network guy - more of a programmer. I recently replaced a PC, and attached it to a simple 3Com switch. I have one other PC and a Printer attached to this switch. I can see the new PC on the other PC; however, I cannot see the other PC or Printer on the new PC. Funny thing is, I can ping the other PC from the new PC. Any suggestions? If you need further detail, please let me know.

Answer 1

check if there are any personal firewalls running on the new PC.  Is the 3com switch a managed device?  Maybe there is some type of port security running on the switch?