Since I do not get an answer in the german board, here my (hopefully not to bad) english translation:
Without any traffic (PC is online and idle, as good as no traffic is shown) cmdagent.exe uses full cpu.
It does this pretty exact every 30 seconds for about 25 seconds and uses 45-50% (which is 100% of one cpu since i have an intel dual cpu).
cpf.exe uses at exact this time 14-17% cpu.
This does not happen every time but after some time i CAN occur. It dies occur when I am working and it does occur when PC is running but I am away since hours.
When I tell CPF to BLOCK or ALLOW ALL at this moment all is working fine.
When I turn on USER it comes back. Every time (when the problem was there at this time).
Please help, only reboot does work.
This may be due to the logging carried out by the firewall. You could try disabling logging to see if there is any improvement.
In network monitor right click any block and log rules and select edit. Uncheck the box ‘create an alert if this rule is fired’.
You can always turn this back on later if you wish.
Another option which can help and will still allow you to view some log events is to make the log file itself read only:
Log Files usually at: C:\Documents and Settings\All Users.WINDOWS\Application Data\Comodo\Personal Firewall\Logs
Right click the file and make it read only. This drastically reduces the drain on your system in most cases. Worked for me and many others.
Thx! There is only on rule which does that and its now without logging. Lets see if it helps 