I received your PM with names but not links. However, I have tested Diamonds n Lace and it is working for me.
I cannot test NC because I don't have enough privileges (as I am not a member) but I would have thought I would not even see that message if the Chat Room was not working. Not sure.
However, I did get an Error Message for W&C.
Alice is the Alice Administrator. She will be online in a couple of hours time. I will alert her to this thread and provide her with the forum names and links.