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Switch/Hub question

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9 replies

by dschwer

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Hi

Here is my scerario. I currently purchased an unmanaged switch to convert to from my 10meg hub. I plug in all the patch cords into the new switch and all my computers work except one. It will not connect to anything.(internet , shares, etc) However when i plug everything back into the hub that computer works just fine. I am thinking that i have a nic issue on that machine but I am not sure where to start.

Any help would be appreciated

Thanks
Dale

9 replies

by jschein

The machine you are having issues...

Does it have a 10/100 nic or just a 10?

What is it's OS? Can it ping or pick up DHCP if using DHCP? If on DHCP, have you manually changed the i.p. address and tried a ping? Is it in the same workgroup? Does it have the same I.P. or name of another computer on the network?

Sorry for all the ?'s, they will help.

J.

by evkuo

I've seen something like this happen when the NIC either is or needs to be hard coded to a certain speed. Basically, go to one of the PC's that is working and see what speed it is running at. Then on the "bad" PC, go to the Device Manager, open the Properties of the NIC, click on the Advanced tab, and look for Link Speed & Duplex (they might be slightly different and/or seperate listings, depending on the driver your using). Then hard code the NIC to the speed/duplexing that you found on the "good" PC.

by chris910

I have run into a similar issue with an HP procurve switch that cannot auto negotiate a connection if the NIC is hardcoded to 100MB full duplex. It is documented and explained in the manual under troubleshooting

by budthegrey

Does this switch have an 'uplink' (crossover) port that perhaps you plugged into by mistake?

I've seen unmanaged switches that have an 'uplink' port which is really the same as the last port, only in crossover mode (i.e., the switch has two port '24's). In this situation, you can use one or the other, but not both.

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