Servers suddenly freezing/disconnecting for no apparent reason

[streakeagle]

The Forgotten Early Cold War servers have been around quite a while, so we have some idea how to troubleshoot problems.
But in recent weeks, the main online public dedicated servers are causing frequent disconnects experienced by multiple people.
The weekly co-op mission suddenly freezes, and everyone is disconnected.
The server appears to be running ok without crashing, but the local network gets jammed.

I also host dedicated servers with the same configuration.
The only difference is that I add mods like the VSN F-4 and allow red side clients for PVP.
I have suffered this same disconnect on my own network: i.e. I am using a separate PC as my client to join/fly on my dedicated server.

The same problem has occurred at two physically different locations with different dedicated PC servers.

However, they are both running the same missions/scripts: most missions have MOOSE, some have Skynet and/or MIST.
The persistent PVE servers are also running SLmod, but the private weekly co-op server does not use SLmod.
Today's co-op mission was using Liberation.

Studying the logs from today after attempting to fly Liberations twice, the only abnormal errors I could find looked like this:

2024-02-25 21:38:08.047 INFO    ASYNCNET (Main): onPlayerSlot(6, 485_2)
2024-02-25 21:38:08.048 INFO    ASYNCNET (Main): rejected by onPlayerTryChangeSlot
2024-02-25 21:38:08.151 ERROR   LuaHooks (Main): [string ".\Scripts\RPC.lua"]:53: bad argument #2 to 'format' (string expected, got nil)
2024-02-25 21:38:08.151 ERROR   LuaGUI (Main): [string "./Scripts/RPC.lua"]:53: bad argument #2 to 'format' (string expected, got nil)
2024-02-25 21:38:12.575 INFO    ASYNCNET (Main): release unit 
2024-02-25 21:38:12.575 INFO    ASYNCNET (Main): client[6] occupied unit 485_2
2024-02-25 21:38:12.704 ERROR   LuaHooks (Main): [string ".\Scripts\RPC.lua"]:53: bad argument #2 to 'format' (string expected, got nil)
2024-02-25 21:38:12.704 ERROR   LuaGUI (Main): [string "./Scripts/RPC.lua"]:53: bad argument #2 to 'format' (string expected, got nil) 

 

[Zyll]

did you ever get anywhere with this issue streakeagle? We had a mission tonight where we saw alot of these errors, and the symptoms were rubber banding, AI blinking in and out of existence, and a generally terrible experience for ~40 pilots in our mission. Interestingly, it seemed when the RPC.lua errors went away was when things started to look better in the game. Does anyone know what these errors may be a symptom of?

 

2024-03-18 01:08:18.968 INFO    ASYNCNET (Main): Current ping: 151.1ms
2024-03-18 01:08:48.840 ERROR   LuaHooks (Main): [string ".\Scripts\RPC.lua"]:53: bad argument #2 to 'format' (string expected, got nil)
2024-03-18 01:08:48.840 ERROR   LuaGUI (Main): [string "./Scripts/RPC.lua"]:53: bad argument #2 to 'format' (string expected, got nil)
2024-03-18 01:08:48.971 INFO    ASYNCNET (Main): Current ping: 70.2ms