One Mac on a network has website troubles

[MoMowlam2]

Three Macs, shared internet connection via wired router/ethernet switch.

Suddenly one, running 10.4.11, can't connect to a couple of well known and trusted websites. It gets redirected to a domain parking site. The other machines have no problem, this one can get to all other sites tried so far. Same problem in Safari and Firefox.

Any ideas please?

 

[madog]

Just throwing this out there because I have no idea....

Try the Keychain app for site certificates? Maybe deleting them will do..... something... magical?

 

[MoMowlam2]

Problem solved. Had to change the DNS nos. in network prefs, I'm told it was a 'poisoned DNS cache on the server".