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Name: aaaaabc
Hi there
I have a bunch of PCs on a switch, and one can ping other PCs but they can't ping it.
It is not antivirus or firewall problems that is causing this as I have done a full format-reinstall and disabled the firewall.
I hooked up to a different network and it was fine, but not on this one. I changed the switchport it was plugged in to, changed the IP incase there was a conflict, have swapped cables, and have rebooted the switch.
Can anyone please help me this is driving me insane and causing major problems!!!
Thanks
Edit: When I say ping I don't just mean pinging, I mean anything
Type ipconfig /all in command prompt of problem creator computer and copy and paste the output to notepad by ctrl+a and ctrl+v and then copy from notepad and paste output here.Explain your problem simply so that we will resolve this accurately.WE are here to serve you.
Are you netork administrator?
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So, it has a solid link light on the switch? Is local area network in state 'Connected' in network?
If no, then check your cable, and try hard setting both sides of the link to 100mbit/full, might not be negotiating right, and then 10mbit/full there's still no physical link.
Do you have an IP on the problem machine?? In the same subnet as the other computers?? Not some 169.254.x.x worthless address right? And the subnet mask's match?
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Yeah I am the network admin - strange as hell though, I swapped out the switch and it worked fine, then I swapped it back and it stayed fine. God knows what the hell was happening, this problem had been going on for months and the switch had been rebooted and everything.
Oh well thanks anyway guys
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There may be a problem of subnet mask.Or firewall.Try ping from server.And then from client.Then tell us.
We will resolve this in any case.
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The subnet mask is 255.255.255.0 on all the computers on our network. I had firewall turned off on the client computer. They're still pinging fine now after what I did yesterday, but when the problem occured the client was able to ping the server, but the server was unable to ping the client
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Today the computer just started being reachable again. Something very weird is happening here - anyone got any ideas of what could be the cause? Thanks
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Nope I've swapped the bad machine with a good machine to see if network cabling had anything to do with it and the problem persisted on the bad machine.
I'd like to say it's the machine that's the problem due to the fact that only this machine has the problem, but it's a fresh build and once I moved it to a different network it was fine.
There is nothing I am aware of on the server or anything (e.g. group policy) that would be causing problems with this specific machine I don't think
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It works fine on other networks though, so can't be the card can it? It MUST be switch-related. I'll see if I can do more tests next time the problem happens
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