> You are making an interesting point regarding the network. Would it be possible for Firebird to report the bug check due to the network layer misbehaving? While new clients cannot connect the existing connections are still working fine until they get the bug check and have to close. Also local host connections are refused as well, not just those using the machine IP.

AFAIK after any bugcheck work with database is blocked because FB
server can't be sure that the bug is harmless.

SY, SD.