I'm experiencing the same problem. Before I updated to Win10 1903 (build 18362.418), multiplicity was working fine on my laptop configured as a secondary computer and running Win10 1809. After the update, the laptop secondary computer shows up in the seamless window on the primary computer but it is greyed out. Also the primary computer can't seem to determine the ip address of the secondary computer on the configure screen. I deleted the computer from both the grid and the available computers and then added it back in. Multiplicity was able to find it on the network and placed it back into the available computers. I was able to add it to the grid but could not control it. Again it was greyed out. The IP address reported isn't even in the same subnet. (eg. 192.168.0.XXX instead of 192.168.1.XXX). I tried uninstalling and installing on the secondary, unloading and reloading on the secondary and primary computer all to no avail. I have a shared drive between the laptop secondary computer and the prime computer and it works fine.
I checked norton firewall settings and it has full privileges for multisrv.exe and multipl2.exe on the secondary computer. I've even turned off all firewall and antivirus software to no effect.
I'm running Multiplicity 3.44 KVM pro Build 0090 on both my laptop and primary computer. I have 2 other secondary computers on the grid and I can control them fine. These other computers are running version 1903 (build 18362.356) of windows 10 pro as is my primary. So it could be the differences in the build.
Computer information for non responsive laptop:
- LG gram
- 16 gb memory
- 512GB SSD
- Intel I7 processor
- Intel UHD 620 graphics processor