So yeah, I'm getting some slowness again. It seems to be around the same time each day. Looks like the 304 responses for the vBulletin javascripts are timing out every now and then, and the forum pages don't load until the javascripts are loaded.
ClientConnected: 10:57:39.433
ClientBeginRequest: 10:57:39.963
GotRequestHeaders: 10:57:39.963
ClientDoneRequest: 10:57:39.963
Determine Gateway: 0ms
DNS Lookup: 0ms
TCP/IP Connect: 2ms
HTTPS Handshake: 0ms
ServerConnected: 10:57:39.963
ClientBeginRequest: 10:57:39.963
ServerGotRequest: 10:57:39.963
ServerBeginResponse: 11:00:48.954
GotResponseHeaders: 00:00:00.000 This is a 504 (the server did not return a response for this request).
ServerDoneResponse: 11:00:48.954
ClientBeginResponse: 11:00:48.954
ClientDoneResponse: 11:00:48.954
Overall Elapsed: 00:03:08.9906032
That's 3 minutes to load a page, not seconds.
Fewyn, any thoughts?