Perhaps a mod can help you. Further questions before drastic measures: did you install Comodo recently? If so, did you uninstall properly the previous FW (some FWs leave things behind, and cause conflicts).
If everything else fails, i suggest a re-install, but wait for further help, and answer the above please:
Backup the rules, if you prefer- Script to Backup CPF firewall settings
( Comodo Forum )
this is a workaround until a feature comes along to backup rules.
There have been some reports similar to this on the forums, and seems to be a problem with a file becoming corrupted.
Can you try a reinstall, you can use the script posted by someone to backup your rules.
Also, if you recently installed do you have any other security software active? It may be a good idea to disable these when installing CFP as they can block registry and startup changes for applications causing problems.
“Someone” - I installed Comodo a month or so ago. Worked wonderfully and flawlessly until yesterday. No recent changes to system for me to pinpoint why it suddenly went down.
I used to use Mcafee provided free to Comcast customers. It was a security suite which began misbehaving for me when it wouldn’t update and was a bit of a resource hog. I used their installed uninstaller and my ISP also had me run a script to “REALLY” clean it all out.
I’ve been running Comodo quite happily for a firewall for the last month and Grisoft for my AV.
I have no other security apps running. (Though I have turned on the Windows Firewall since Comodo went down)
“Soyabeaner” - I’m running XP SP2 and am current with all appropriate Microsoft “critical” and optional security patches via Microsoft update. I also run Ad-Aware and Spybot Search & Destroy once a month. My system is generally pretty clean.
Many thanks for your collective wisdom and guidance!