@lawanswers - Still happening. Just opened the Commercial Law forum from the home page and the browser was stuck trying to connect for over 40 seconds (6:21PM). This page then loaded straight away.
I think you need to look at the DNS settings. I just looked them up at
MxToolbox and the TTL (Time To Live) setting is 30 seconds - that's way too short. It should be at least 5 minutes. If your server has a static IP address (which it should), then there's no reason for a TTL of under 1 hour, in fact, I recommend 24 hours to reduce DNS server load.
A TTL of 30 seconds is causing way too many DNS lookups and it appears that the DNS servers are choking on it. I think this is what's causing the connection problems.
(FYI - I have several I.T. qualifications, including Networking.)