>> Thank you for all the suggestions, I’ve changed the config as suggested,
>> unfortunately the problem still happens.
>> There seems to be little for me to investigate.
>> The latest crashes all occurred when there was very little load on the server
>> and on firebird.
>>
>> All access is done by php which I’m inclined to think might be the culprit, but
>> there doesn’t seem to be any recognizable pattern on the errors.
>> The windows event logs aren’t showing anything but the crash themselves.
>>
>> I’m open to any suggestion on how I might track this problem.

>Does your database have/use custom developed UDF's?

>Have you tested them? Could they be causing the failures?

>Have you tried using the FBTrace functionality, to trace all database activity?


No custom UDF’s. The same databases runs with no downtime on their firebird 2.5 version.

I haven’t used fbtrace, will start to dig trough the manuals now, thanks.