[BUG] Dedicated Server Constantly Disconnects With Host Rejection Error When Logging In

To whom it may concern,
I run a dedicated server for the game Icarus.

I keep running into issues with Network disconnects from the 'host'.

I have ran PingPlotter to check for packet drop between myself and the low.ms dedicated Icarus server that I run and the pipe looks clean from end-to-end.

I have had to restart this server several times for the past couple of months to try and rectify this issue, but it still persists.

I keep receiving constant disconnects when trying to log into the server.
Could we have this looked at from Rocket Werkz/Steam backend have a look at the Dedicated Server code for this error and see if there may be an issue on that end?

At least to rule this part out of what's causing the constant disconnects upon login.
Here is an excerpt from the ticket that I posted with Low.ms server hosting:

"This seems like a very big issue searching for network error on the steam forums returns you over 150 separate threads..."

See attached screencap.