Scheduled tasks have disappeared (CF10)

[Outside5 Ltd]

I have checked my CF Admin today and noticed that the 20 or so scheduled tasks I have in the administrator have vanished without trace.

Any ideas what would cause this to happen? Is there any way I can trace the cause?  Possibly related, the server (Windows Server 2003) was updated and restarted overnight last night.

Also noticed that the cf administrator scheduled tasks page has the following error

Variable DSNVALUE is undefined.

The error occurred in scheduletasks.cfm: line 749 Called from scheduletasks.cfm: line 289 Called from scheduletasks.cfm: line 1

-1 : Unable to display error's location in a CFML template.

Thanks,
Paul

[tribule]

We've suffered a few problems with the scheduler too when renaming tasks. Once it ran all tasks at once.

Is your /CFIDE/administrator locked down (not publically acessible) do you know?

[Outside5 Ltd]

It was on the main site, but not on subsequent sites (not realising that each site in iis would have its own access).

It is now locked down across all sites.

[tribule]

Check your logs for accesses to /CFIDE. We have locked down our CFIDE but I am wondering if it wasn't locked down well enough. Perhaps the scheduled tasks were manipulated remotely; it's a common attack vector it seems.