Comment # 12 on bug 1188949 from Jonathan Kang

(In reply to Vladislav Milenin from comment #11)
> Created attachment 852201 [details]
> Logs of dhcp=dhclient
> 
> After replacing dhcp=dhclient to dhcp=internal, the Internet was connected
> correctly for these few days. But it was worth changing these values back,
> as the same problem reappeared. In a non-working state, I took the logs
> again and returned them back to dhcp=internal, since it works better with it.

Can you install NetworkManager from the repo mentioned in comment#5 and provide
logs again? More verbose messages are needed to debug dhclient.

Thanks.