We had some downtime to my site last Tuesday/Wednesday due to maintenance at Krystal hosting. The forum was still OK.
After the upgrades to the server, the database for my site had its credentials changed and the site couldn't log in.
Last night, I could see that the site and forum were unreachable but then so were all my friends' sites on Krystal.
They've had a DDOS attack aimed at another server which gummed up the whole network. There's not much you can do about that.
I thought I'd add something here in case people were wondering what was going on.