Domain Redirect/Forwarding Times Out

We had set up this redirect months ago and it worked great. Sometime this month, the connection started timing out. Let's call the main domain A and the domain being forwarded to B. B loads fine on its own, while A times out when redirecting to B, so I don't think there is a problem with B. There is something with the redirect.

I have searched the forums and have not had luck in finding a solution that works. Below are the setup details. Any help would be greatly appreciated.



Forward to:

Forward Type: Permanent (301)

Settings: Forward only