Unable to ping/telnet/connect to external ip addresses, internal is fine
Posted on 2010-01-04
This is ludicrous... all internal pings/telnets/shares/email works fine. The ip is dynamic and exactly matches the setup of all other computers on the internal network, but this one pc cannot get out to the external world! If I ping "domainname.com" I get the correct ip address identified by the internal dns server, but the ping request repeatedly times out. If I ping the ip address directly, I simply get an immediate time out.
I have done ipconfig release/renew/flushdns dozens of times on all computers on network, all of them work perfectly except this one machine which will only work with internal ip addreses. It's driving me scatty, I have no idea what to try next. I have enabled/disabled firewall without any change.
I put a wireless card in the machine and it connected to the wireless office router fine and when I disabled the wiired network card, I could ping external ip addresses from the pc, but I don't want the pc to have to use the wireless network. It's mad! I cannot think of what could be causing this...