Thers a physical problem at one computer the rest of the network can no longer communicate. what you suggest?

Answer 1

Restart the computer that has the physical problem. But first...look at the link lights on the NIC. Are they flashing like crazy? Sometimes a NIC will become defective or just loose its brain and become what is called a "Jabbering NIC".
Replace the NIC if the restart does not help.
If that does not work I will need more info.

Answer 2

I assume you mean a single PC can not longer communicate with the rest of the network :-

In a typical office ?
1) The user has 'tidied' the cables on/under his/her desk and unplugged the network cable (or the cleaner snagged it & ripped it out)
2) Some bozo of a contractor looking for a spare port on the Switch / Router and has unplugged that computer ..
3) Mainenance has just 'fixed' something next to the cable runs ... (lighting, air-con, fire detectors, plumbing etc. etc. = amazing how 'maintenance' can never resist ripping out & tidying any little wires next to whatever they are supposed to be fixing - one guy decided to 'clip them out of the way' by banging 2" nails through the wire bundles ...)

Physical network problems are almost ALWAYS cables ..

If it's not 'physical', the most likely problem is that the user has gone on holiday and some idiot has set the Router / Switch to drop inactive connections or that the DHCP server has run out of IP addresses or that some clever user has manually entered a fixed (duplicate) IP address...


NB> If you are suggesting that a single (user) PC has brought down the whole network, then you need to :-

1) Throw away all those obsolete hubs and replace them with switches
2) Make sure your switches will cut off any ports that detect a 'jabber' fault (most switches less than 5 years old will already do this).

Answer 3

need more information, what's the "one computer" do?
is it a workstation, a server or domain controller perhaps?
what's the "physical problem"?

how is the network configured... can you draw a layout of your network?
Do you have Routers, Switches, Hubs... etc?

define no longer communicate...
can you ping anything on the local network, just not out to the internet?

Answer 4

prolly something wrong with your nic card(network interface card) could also simply be a driver problem...have a nerd friend of your look at it

might also be the cables your using

Answer 5

just take out of the loop till you get it fixed

Answer 6

give up and go to bed.