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Sudden blip in internet access

Community Veteran
Posts: 38,460
Thanks: 1,031
Fixes: 62
Registered: ‎15-06-2007

Sudden blip in internet access

From router log
Error Aug 23 09:50:35 FIREWALL replay check (1 of 1): Protocol: ICMP Src ip: Dst ip: Type: Destination Unreachable Code: Port Unreacheable
DNS servers are  Primary Secondary and are set on the PC not the router
So it appears that I couldn't access either DNS server for a short time - any suggestions
Community Veteran
Posts: 5,243
Thanks: 509
Fixes: 22
Registered: ‎10-06-2010

Re: Sudden blip in internet access

Considering the source and dest of the icmp packet, I would have thought the log entry means that by the time you received the dns answer, your computer had already given up waiting for it, or the dns cache service had restarted or something like that.