error: 0x80072efd - no server connection


this error “0x80072efd” I now have for seven days. Comodo always says that it couldn’t connect to the servers. I didn’t change anything before this error occured with starting the computer one day.
What can I do?
I already changed the name of the “bxxxx.cav” files in the comodo directory, but it didn’t changed anything…

I also have the same error:

no solution yet?

Product Version:

I have the same error on upload suspicious file.
Is there something wrong in the configuration?
Thank you.