Can’t ping properly ….

Hi guys …

Would like to get some ideas for this issues.

Well, i have 3 pc’s. Name A, B and C. All these pc’s are using OS Win98. They are connected to each other with network cards and hub. All IP is automatic, and no firewall. Use Norton Antivirus 2003.

They can access each other, share files, and etc. They can ping each other. But when use A to ping any pc’s, it can’t ping, and the dial up program popup too.

Why? Are there anyway i can solve it?