Ian, I've seen some of those with Windows 7. I don't normally run the CC as an admin user but I do recall versions where that was required in order after upgrading versions, and/or plugins.
Unable to close tunnels: have seen this rarely, and relatively recently...this year only? At about the point tunnels stop responding, I can check and find that ltclient.exe is using 100% of one CPU core as if a process is stuck. Closing/ending the program is a solution.
See if this helps any: https://docs.labtechsoftware.com/knowle ... ticle/5784
. At one point a couple of us were getting connection messages repeating every minute or so once we opened a tunnel and this KB fixed it.
I also get the intermittent inability to open computers from searches. Sometimes it seems like after it stops working, it starts again later.
You've probably been around long enough to have done this, but for lurkers with tunnel issues, read and re-read the docs on configuring your router and your clients' routers. That helped a lot and they changed it over the years (as of a couple years ago).