I can't be certain as I don't use AIS, but that screenshot I believe this crops up is during registration now if it fails I wasn't aware that it continues to try.
The other issue I have is that your screenshot shows it relates to avast Internet Security.
However, your comment in your previous post "Same issue here. Registering offline worked." and off-line registration is associated with the avast free version, so I'm somewhat confused as to how this would have worked with AIS (Unless you were using a trial version, but even then I don't know how that would work either) ?