I had a problem with this as well. However, I don't think it's doable in the form of a module.
In UNIX they have often suggested setting up a CRON job to handle this (a service tries to run Anope every so often and if it's not already running, then it will run a new instance that will connect blah blah).
I've always thought that Anope should run, and upon disconnect just sit in a mode where it will continue to try to connect upon disconnection (either forever or for a certain number of retries that can be specified in a conf directive). However, without modifying Anope's source code this isn't currently possible.
For now though, if you're using UNIX just try the CRON thing, they have a script example in some directory (somebody else will have to tell you this). If you're using Windows you may be able to set up a Scheduled Task. Enh. there are also some 3rd party tools.
-Kain
