I just saw that BAM! sent my machines (BAM! IDs 529044 and 673024) the instruction to attach to two projects today:

Two problems here:
1. Both projects were already attached with another URL and were not detached before reattaching. So they are now attached twice and complain loudly about it, e.g.:

2. The "new" WCG URL is wrong, the old http://www.worldcommunitygrid.org/ is still the valid master URL (and I really doubt this is going to change anytime soon).

The duplicates were detached now (delayed detached, actually, but there were no tasks left anyways), so problem 1 is fixed.

I have the same problem with WCG. In fact my second host has now detached from WCG completely (had duplicates yesterday), and the main host is going to remove WCG when tasks are done.

The project URL is http, not https.

I was stupid, somebody send me a PM that WCG had changed to https. I verified the address, it worked, so I switched over. Now I reversed it but some host will still detach http when they got the detach the first time and did not complete all WU yet.

No worries, my second host just reattached with http automatically (it was out of WCG tasks), and my main host will probably detach from https and reattach to http similarly when it finishes its WCG tasks. No input required on my part!

All good again, thank you for getting it sorted.

Thanks for the explanation Willy. My hosts are running well again.