We've just completed a 3 race evening with 18 drivers (no AI) and not one disconnect either through race or at race end. Our remote server is;
View attachment 12359
Good to know Goanna,
Here since I moved from the Launcher to SteamCMD this is every end of race.
I reinstalled onto a dedicated SSD but this did not change anything, rest of the PC runs fine.
Now finishing a few computers and will run a new trace on both server and local as Friday night is our league night.
Server stays on, just disconnects (Connection lost) both local and online clients while loading new race.
Reconnection to server for clients is problem free.
As it seems, it is my problem and there is no support so we will deal with it and hope for future updates to solve it.
Hardware/network/software is checked multiple times (that is my daily job, I am a self employed IT installation technician for 25 years)
This is the end of the trace of a successful 30 minute World GT3 race at sm_Imola with 28 AI if anyone can recognise anything as the problem (not sure why I get a smiley on Post !):
4538.51s game.cpp 2611: Entered Game:

ost()
4538.51s sound.cpp 1611: Entered Sound:

ost()
4539.57s specialfx.cp 4171: Entered SpecialFX:

ost()
4539.57s steward.cpp 9632: Entered Steward:

ost()
4539.61s dynman.cpp 2771: Entered DynMan:

ost()
4539.62s slot.cpp 1142: HALT? Time UNloading Max Koebolt was (0.00+0.00+0.00+0.00+0.00+0.01+0.00+0.00+0.00+0.00+0.00+0.00+0.00) = 0.01
4539.75s camera.cpp 5541: Entered CamMan:

ost()
4539.75s render.cpp 3135: Entered Render:

ost()
4539.75s onscreen.cpp 4330: Entered OnScreen:

ost()
4539.75s vidman.cpp 3164: Entered VidMan:

ost()
4539.84s plrfile.cpp 2929: Entered PlayerFile:

ost()
4539.84s plrfile.cpp 2037: Attempting to save to C:\Games\rfactor2-dedicated\UserData\player\player.TMP
4539.89s plrfile.cpp 2061: Retcode: 0 for renaming to C:\Games\rfactor2-dedicated\UserData\player\player.JSON
4539.89s JNILog.cpp 32: SRLI: received 36 bytes of data
4539.89s JNILog.cpp 32: Putting on the event bus: SessionResultImpl [sessionType=PRACTICE1, entries=[SessionResultEntryImpl [steamId=0, position=-1, positionInClass=-1, totalLaps=0, finishTime=-1.0, fastestLapTime=-1.0]]]
4539.89s game.cpp 2656: Entered Game::Exit()
4539.93s JVM.cpp 158: Invoking stop call
4539.93s JNILog.cpp 32: Stopping framework
4539.93s JNILog.cpp 32: Thread interrupted
4539.93s JNILog.cpp 32: Joining
4540.42s JNILog.cpp 32: Joined
4540.42s JNILog.cpp 32: Stopped framework
4540.42s JNILog.cpp 32: Framework stopping bundles
4540.42s JNILog.cpp 32: Framework unregistering native services (including this logging facility)
4540.42s JVM.cpp 163: Destroying JVM
4540.42s JVM.cpp 165: Destroyed JVM
4540.42s sound.cpp 1632: Entered Sound::Exit()
4540.42s specialfx.cp 4201: Entered SpecialFX::Exit()
4540.42s dynman.cpp 2851: Entered DynMan::Exit()
4540.42s render.cpp 3184: Entered Render::Exit()
4540.42s onscreen.cpp 4361: Entered OnScreen::Exit()
4540.42s vidman.cpp 3226: Entered VidMan::Exit()
4540.45s osman.cpp 1015: Entered OSMan::Exit()