Why is Solicited TCP Packets: RECEIVED (FAILED) in Shields Up (grc.com)?


I am new to Comodo Firewall, have been using ZoneAlarm for years. ZoneAlarm was causing a MAJOR slow down in boot time, so I uninstalled and and thought I would give Comodo a try.

Everything seems to be fine, but when I used Shields Up (grc.com) all ports are stealthed EXCEPT port 0 & 1 and therefore the TruStealth Analysis is showing “FAILED”. Below that it reads: Solicited TCP Packets: RECEIVED (FAILED).

When I checked ZoneAlarm in the past, it passed with flying colors?

Can anyone assist me in what is going on? I understand the ports are showing closed, I would prefer stealth showing. I have read some other posts stating it is a security hole in the software, but not sure I believe that.

Any help would be GREATLY appreciated!



I have a D-LINK Wireless Router. After checking the firewall settings on my router, I found that one of the settings was not shutting down the ports (only addresses), changed the setting and got a full GREEN (Stealth) from Shields Up!

Hope this can help someone out! :slight_smile: