Parent Site to Child Site Global State = Link Failed

CM2 (Primary site) was out of room (think it was the 9 million patches we downloaded).  It was probably like that for a few days.  It's a VM and yesterday I migrated CM4 (WSUS) off to another host so this box could get more disk.  That helped and things started purring, but software update summaries seem to be dead.  Earlier today I saw that DB replication was dead and it still is:  

Parent Site to Child Site Global State = Link Failed

Can't find boo on how to reinitialize it as it's service broker based, not transactional based.  Hoping it'll just catch up or something, but who knows?

Update: Beta 2 still has some transactional replication.  A couple of those replicas had gone stale.  I had to reinitialize them and generate a new snapshot.  That seems to be helping the console dates (one was status msgs).

Update: Found this in the primary (CM2) site's rcmctrl.log: ERROR: DRS queue is NOT enabled, so not calling the DrsActivation procedure.

So I opened SQL Server Studio and went to the service broker & enabled it.  Link status is back to active and data is flowing again!