Hello,

I have been trying to use the null modem emulation in dos box to play
multiplayer on "sub 688 attack sub" I can connect the two dosboxes
together, however when I begin the game and attempt to connect there is
an error message in the status window telling me overrun: 10. Now I
have tried to increase the rxdelay many times however the overrun error
repeats with a different value. How may I go about fixing this?

Thank you