Originally Posted by damgar
Maybe you are having problems with your DNS server. Try setting a static DNS server other than your ISP's.
I don't think it's problem of the dns server.
Another computer with WinXP works well with the
same dns server. And after reboot, all works
When the problem happened, ping got a result as follow:
1) ping by domain name
53 packets transmitted, 7 received, 86% packet loss, time 176196ms
rtt min/avg/max/mdev = 17.714/19.668/26.758/3.023 ms
2) ping by ip (same target)
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 19.052/22.237/25.422/3.185 ms