Take the 2-minute tour ×  I'm encountering a strange phenomena
in Ubuntu 11.04.  My Thinkpad x220, has two operating systems
installed, Ubuntu 11.04 and Windows 7.  In Windows, everything
is OK. My network speed is very fast, no matter if wired or
wireless. But in Ubuntu, it takes a long time to open a website,
both wired and wireless (but wired is faster than wireless). In
wireless, I tried to ping google.com. It would take several
seconds to respond and the delay was more than 1000ms. If I ping
google.com in wired state, it's also very slow. It also took
several seconds to respond but the ping program said the delay
was only 10ms.  My wireless card is a Realtek 8192c.  Does this
relevant to Ubuntu drivers?  My traceroute to google.com:
martin@martin-ThinkPad-X220:~$ traceroute google.com traceroute
to google.com (, 30 hops max, 60 byte packets 1 ( 2.995 ms
51.938 ms 52.460 ms 2 ( 52.168 ms 52.174 ms 52.216 ms 3 ( 52.119
ms 52.170 ms 52.175 ms 4 ( 52.749 ms 52.750 ms 52.739 ms 5 (
52.682 ms 52.673 ms * 6 (