From time to times I have to reboot my Ubuntu 11.04 remote desktop. Once it up and I run Cromium browser with many tabs (20 for example) dns server doesn't respond anymore. At beginning I suspected my ISP, so I replaced my /etc/resolv.conf with following values:
nameserver 126.96.36.199 nameserver 188.8.131.52 nameserver 184.108.40.206
The result is the same - I can't use browser for ~20 min. because names are not resolved, ping doesn't work either.
Any idea what is blocking?