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How do I verify a NIC is working?
majikman Jun-22-02 07:21 PM
I work for a computer company doing technical support over the telephone and we are having a problem determining if a NIC is working when it is being detected in the device manager. The problem is with the customers that have a broadband modem. We can't determine a way to tell whether it is a problem with the NIC or a problem with the modem. People have made suggestions to ping the localhost and run ipconfig but if i'm correct, pinging the localhost will only verify that the tcp/ip stack is installed properly. If the NIC is showing up in the device manager, then the TCP/IP protocals should be isntalled propely and pinging the localhost will always work. Same applies for running ipconfig. Can anyone else think of a solution if the customer does not have another computer nearby? Thanks.

1. RE: How do I verify a NIC is working?
DJ Net2Infinity Jun-22-02 07:31 PM
In response to message 0
Localhost meaning 127.0.0.1 or their ip address? Also ipconfig is for Windows 2000, they can enable the tray icon and also view the status of the NIC card in their network properties and see if they are actually moving data. Tracert is another good troubleshooting command.

2. RE: How do I verify a NIC is working?
stephenl Jun-24-02 11:04 AM
In response to message 1
if you can ping loopback this will determine if your nic is working the other commands will rely on correctly configured ip settings etc
also nic cards have lights on act lnk etc try thhem

4. RE: How do I verify a NIC is working?
lbyard Jun-24-02 03:34 PM
In response to message 2
Try running msconfig (Win 9x,Me) or ipconfig (Win NT,2K,XP from a DOS window; c:\>ipconfig /?) select the adapter, and release and renew the IP address lease (TCP/IP should be set to get it automatically). But, first, remove all power (pull the power cord/converter) from the MODEM for several minutes. That should cause it to look for a new Ethernet MAC address (adapter). If will probably move this thread to the networking forum. Larry

5. RE: How do I verify a NIC is working?
stephenl Jun-25-02 04:01 AM
In response to message 4
youve also got the winipcfg command on a 95/98 box nice graphical ipconfig version with buttons !

6. RE: How do I verify a NIC is working?
lbyard Jun-25-02 01:05 PM
In response to message 5
Sorry, that is what I meant: winipcfg, not msconfig, that is. Larry

7. RE: How do I verify a NIC is working?
trumpetr Jun-26-02 10:48 PM
In response to message 6
LAST EDITED ON Jun-26-02 AT 10:49 PM (EDT)
 
I see where you are going with this, I deal with dead nic's every day (darn lightning power surges) The nic will seem to be fine, all lights ok, link etc. but the only way that I've found to truly test out the nic is to try connecting to the modem router hub etc with the same settings, cables, etc. snd different PC. If it works, swap the nic. Cheaper than the time it takes to try and really diagnose the NIC and still find that it's faulty......The only other way I can think of is to see if it's moving data packets.... Still if it's flakey swap it out.

8. RE: How do I verify a NIC is working?
lbyard Jun-27-02 10:28 AM
In response to message 7
I've seen more than my fair share of flacky nics in the last 15 years, believe me. Before that, it was RS-432, RS-232, etc. interfaces, etc. You should see what happens to five rooms full of multi-thousand dollar PCs, Cromenco's (S100), pdp's, Macs, Lisas, etc. when lightning hits a microwave tower located a few feet from the building. And they were all under my care, sigh! Larry

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