俺的计算机已经有一个多星期没法登录了。当初登录后再“自动登录”没问题，一旦“自动登录”过期后就登陆不上。似乎是DNS问题，所以可能是局部的。

俺这里上他们的主页没有问题：

C:\Users\Eddie Cheng>ping t.sohu.com

Pinging t.sohu.com [61.135.131.117] with 32 bytes of data:
Reply from 61.135.131.117: bytes=32 time=293ms TTL=240
Reply from 61.135.131.117: bytes=32 time=257ms TTL=240

Ping statistics for 61.135.131.117:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 257ms, Maximum = 293ms, Average = 275ms

C:\Users\Eddie Cheng>ping blog.sohu.com

Pinging fbjuni.a.sohu.com [61.135.132.59] with 32 bytes of data:
Reply from 61.135.132.59: bytes=32 time=254ms TTL=49
Reply from 61.135.132.59: bytes=32 time=256ms TTL=49

Ping statistics for 61.135.132.59:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 254ms, Maximum = 256ms, Average = 255ms

但是与登录有关的网站就不灵：

C:\Users\Eddie Cheng>ping passport.sohu.com

Pinging passport.h.a.sohu.com [220.181.2.225] with 32 bytes of data:
Request timed out.
Request timed out.

Ping statistics for 220.181.2.225:
Packets: Sent = 2, Received = 0, Lost = 2 (100% loss),

C:\Users\Eddie Cheng>ping sohu.com

Pinging sohu.com [61.135.181.175] with 32 bytes of data:
Request timed out.
Request timed out.

Ping statistics for 61.135.181.175:
Packets: Sent = 2, Received = 0, Lost = 2 (100% loss),