Unable to access network with wifi

Dear sir,
I'm using MBP with Retina 14" and OS X 10.9.1 (13B3116)
I can connect to my wifi and using the internet without problem but after about 30 mins to 2 hours, I cannot access the internet anymore and can't ping to my router (the wifi connection is also established, not disconnected or rejoin). When I open console and see wifi.log, I found this error show every time before problem occured.
Sun Feb 16 14:51:48.488 <airportd[86]> _handleLinkEvent: Unable to process link event, op mode request returned -3903 (Operation not supported)
Now, when I faced that problem, I have to turn off my airport and reconnect.
Please help.
Thanks

Have you tried changing the channel(s) on your router?
For 2.4GHz routers, Macs seem to prefer channel 11.
For 5.0GHz routers, try channel 149.
Call back...
Clinton

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