Internet stops working after waking up from sleep

My MPB has a strange and very inconvenient problem. Sometimes when it goes out of sleep Internet stops working. No matter what connection I use: Ethernet or WiFi (tried both), no site can be opened. The strange thing is:
at the same time other devices connected to the same router work fine (both wired and wireless), so router and ISP are OK.
from Mac I can ping any site by IP (and Skype works fine too).
So it looks like some service in Mac OS that is responsible for domain name resolution stops working.
What I tried:
Restart router - no effect
Move Mac to sleep and wake again - no effect
Restart Mac - the only cure. But in this case I have to close and open numerous applications that is really bothering.
Should I mention that all updates are in place?

Try this. Go to: System Preferences/Network/Advanced/ and click on the far right part of the bar, PPP. You have seven possible items to be clicked: instead, only click "Connect Automatically..." and "Disconnect when..." - and leave everything else unclicked.
That should solve your problem, though it'd be great if you were to post your results here.

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Internet stops working after waking up from sleep

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