help, router stops giving internet connection.. i think

hey

i am using a DSL-G604T wireless router, on my pc its wireless and ethernet
to my dads. it provides good quality and efficient broadband until all of a
sudden, firfox says (and ie before i got firefox) cannot find server, only
can access the IP for the router. i dont know what its doing, the comodo
firewall is allowing every application that isnt getting through and it says
in its log:

Inbound Policy Violation (access denied, ICMP = PORT UNREACHABLE)

Protocol: ICMP incoming
Source: 192.168.1.1
Destination: 192.169.1.2
Message: PORT UNREACHABLE
Reason: Network control rule = 5

It only happens sometimes randomly and im forced to restart the router,
which isnt good i take it lol.

any help is really appreciated =]


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Confused