tough one need help from you network admin/experts

[holden j caufield]

One computer at work cannot occasionally ping the server. The server works with all other computers on the subnet. This one computer sometimes can ping the server and other times can?t. client is on the same subnet, already tested the loopback with 127.0.0.1 so tcp/ip stack is fine, pinged itself and everything seems fine. Checked the bindings and all is also ok. Tried ?ipconfig /all? and all again it seems fine. I?ve narrowed it down to the address resolution protocol. At the command prompt I?ve typed ?arp ?a? only to show that no entries exist. So using ?ipconfig /all? I?ve obtained the MAC address of the NIC on the server and then I?ve statically mapped the address resolution of aaa.bbb.ccc.ddd to the MAC address. After that is done I?ve typed ?arp ?a? and there are mappings of the server ip to the server physical/mac address. This should work but the client still can?t ping the server. Client is running win2k pro and server is win2k advanced server. tried a different nic but also a no go sometimes.

 

[Mark R]

At this point, I'd suspect a physical problem with the network connection, rather than a misconfiguration.

Have you checked the cabling? Do the link lights on NIC and hub light? Does the link ever go down?

Have you tried moving the computer to a different network port?

 

[holden j caufield]

yes I've tried a different nic/cable and port. all a no go so far. thx though

 

[10Strip]

Are you pinging by computer name or by IP? Are you using Dynamic DNS or just static entries. WINS yes/no? Since you said that you had replaced all of the hardware already in the client, rule out any possibility for name resolution problems. Maybe...create a static entry for DNS and or for WINS, make sure netbios is running on top of TCP/IP. Get those names resolved!