RDP Sessions Disconnect Unexpectedly

I am currently in the process of running a new round of testing for this issue on my machine, which I have experienced for probably over a year at this point but I honestly am unsure what the root cause is.

Problem Description:
I have used Remote Desktop Manager for a number of years now both at work and at home and at work I never seemed to have any issues with keeping long-lived RDP Sessions open over a local network.

Here at home however, I have a primary desktop machine plus 3 additional machines running Windows 10 Pro / Windows 11 Pro and I'd like to have Remote Desktop Manager keep RDP Sessions to those machines active.

This used to work without issue from what I recall here at home, however probably for about a year now, I'll open up sessions to these 3 machines and leave those open for the day and when I come back later in the day I'll discover that one or more of the machines are now disconnected.

Yesterday, I read through the suggestions here (https://forum.devolutions.net/topics/41193/any-way-to-capture-rdp-disconnects-to-allow-for-reconnects-when-servic#187366) and enabled the "Keep tab page opened on disconnect" option under the User Interface area for the connections and also enabled the "Smart Reconnect" mode under the Advanced tab and also went ahead and even saved my password in the connection to further help with any possible automatic reconnection behavior, but even with those options enabled it doesn't seem like the "Connect when available" option shown below is utilized automatically?



I am currently collecting some additional data to share here since it's been a while since I last tried to figure this issue out, but just to share a few details of previous tests I have used the Net Uptime Monitor program to confirm it isn't an internet issue, but that mainly checks for external internet activity.

Aside from that, the current network structure is <main eero 6 Pro unit> -> primary desktop (wired) and that main eero 6 Pro unit is connected to another eero 6 Pro unit wirelessly across the room where a switch is connected that allows for the 3 other desktops to be connected to it. The connection between the two eero 6 units is strong and I don't have any reason to believe that there is an issue between those two. I've also swapped out the network switch previously that the desktops are connected to which also didn't improve the behavior either.

The other possible factor here is that even though the desktops are local on my home network, I am utilizing ZeroTier and am connecting through the private IP addresses on the ZeroTier network to the other machines.

As additional tests I am running a new one with the regular Windows RDP client to one of the desktops to see if it will stay online or disconnect as the ones via Remote Desktop Manager do currently since it's been a while since I ran that test. To rule out ZeroTier as a factor I will also swap over to using the regular internal home network IPs once I see the next round of disconnects occur here in Remote Desktop Manager and report those results as well once I have them.