On one of my servers (Sin'rs too), it keeps coming up with the message IS_MTC - only for multiplayer hosts error.

Doesn't seem to be any one reason why it comes up (like if someone joins server, someone leaves server, someone crashes, etc).

Anyone know what this means?

And how I can get rid of it?

Thanks.

/EDIT

Found this in the InSim.txt file:

ISP_MTC, // 14 - instruction : message to a connection

I assume it's the same thing, but still don't know what it means!

Looks like an LFS/InSim bug to me, that error is caused by sending MTC packets in single player mode. Since you're in a multiplayer host, an MTC should be fine

I've now reset the server, and the message appears to have gone now.