Starting about a month ago, every few days Kaspersky delivers a system message saying that the license has expired. I learned that simply restarting the Wingate engine would make it at least appear that Kaspersky was back on the job and let it go as a minor nuisance.
At the moment I got the message anew after restarting Wingate, but note that, after closing Gatekeeper and returning to it a few minutes later to fetch numbers for this message, the message is gone and Kaspersky says "Status: Ready".
I also have a live-with-it problem where Kaspersky sometimes reports that its daily update didn't complete successfully, and in fact that's been the situation for several days. Usually I go to the scheduler and say "do it now" and after five or ten minutes I get a "completed successfully" but that hasn't happened recently. Despite nothing but failures Kaspersky says "Last updated: (today's date)"
Along with all that I accidentally visited a malicious site last weekend; Kaspersky did indeed log and quarantine several viruses, but let enough through to give me a nice clean-up chore.
Engine version is 4.0.2.32; Wingate is 6.2.2. I'm still running NT4AS.