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Cant log into Network

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21 replies

by melissa

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I have about 25 PC's logging into a Windows NT Network, useing 2 hubs and 1 switch. I now want to move an old computer to a new location on out Network. The problem is that I can plug into one port and the computer works, but if I take it to this new location it will not log into the Network. I have tried all the obvious things like cable,line problems and everything works fine. I can plug the old PC into the new location and it works, but the new one will not work at the new location. Theweird thing is that the new computer will work at another port?? So it seems like that port will not except that new computers network card. Any idea's??

21 replies

by rapidad

if the hub is 10mips it may not read or may not pass the packets from a 100mips new network card. can you tell us if all the cards and hubs are 10/100 mips??

by melissa

The Network cards are 10/100 and I have two 10mips hubs and 1 100mips switch. Would you suggest getting rid of the 10mips hubs?

by systhine from tampabay.rr.com

Expanding on what rapidad advised, some NIC cards, hubs and switches are NOT auto-sensing (for speed 10/100Mbps, or duplex half/full). These settings can usually be adjusted in the adapter properties or with included NIC software to match the network hardware you are interfacing with. However, you mentioned you couldn't log onto the network, but can you ping other devices on the network? Can you ping the server? If so, it may not be related to the lower physical layer connections.

by take_smile

Dear Melissa
Pls. Give the detail to us your problem which we think is that the NIC card you are using is not supporting by the hub. If the hub is 10Mbps this will not support to the 100Mbps NIC card so pls. Try to change the card from old pc to new one or check out the hub and NIC card speed.
First you try to ping from the new computer to the server and if it succeed then the problem is different. Pls. Reply after doing so

by melissa

I tried plugging the cat 5 cable into the 10 mbps hub abd also the 100 mbps switch. Is there a conflict with the two 10 mbps hubs and the 100 mbps switch?

by melissa

Does the switch or Hub hold onto any information as to where the computer always logged?? Would resetting the hubs/switch do anything??

by melissa

Does the switch or Hub hold onto any information as to where the computer always logged?? Would resetting the hubs/switch do anything??

by systhine from tampabay.rr.com

I think your problem can only be solved by trial and error. If you adjusted the speed and duplex settings on your adapter as advised, replaced NICs and cables involved, swapped out hub ports, there is very little else you can do.

Is there a link light?

I believe there was some good answers in this thread.

by melissa

What doesnt make sense to me is that this computer works at other locations and not at another in the same office. Even though its plugged into the same hub?? I have tried plugging into the 100mbps switch and it didnt make a difference.

by systhine from tampabay.rr.com

Although, I'm not absolutely sure this isn't a cabling issue, you can change the speed and duplex settings, as I mentioned, in the software supplied with your NIC or in the NT4 Control Panel->Network->Adapters Tab->[Select Adapter] Click Properties

by melissa

I changed the settings around but that made no difference. This computer has an integrated Network card on the mother board. I have replaced the entire monther board and still no success.

by fenaikh

Hi

Given
1- Old computer works in the PORT and any other port.
2- The new one will not work at the new location, but it works in any other port.
3- Tried all the obvious things like cable, line problems and everything worked fine.

Logicallythe problem is seems to be that there is computability or a conflict between the NIC card and the port as you mentioned it.

Please supply info:

1- Does the new PC in that port ping it self.
2- What is the number of the port that did not work with the new PC..
3- The hubs model and maker.
4- The switch model and maker.
5- Did you change of the new PC NIC card with the old PC, which worked with the port, Then try both.

Please Do:
1- Run winipcfg and check the IP address if any. Then release it then renew it. Then try the new PC
2- Change he new PC NIC card with the old PC which worked with the port.
3- Run winipcfg and check the IP address if. Then release it and renew it. Then try both in the same port.

Good luck

Mohamed

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