It would appear that the server that hosts forum.avantbrowser.com (and other sites) is down and has been for several days due to an ongoing dDos attack. There's no information available as to when it will be accessible again. See this information
I use the old AB Version 11.47 Build 46 SR and have been experiencing some issues recently with blocked URLs and scripting on certain websites that are OK on IE 10 and Firefox and was considering finally upgrading to latest Version of AB. It was when I tried to access the AB Forum that I found this issue. I guess I won't be upgrading until this issue is well and truly resolved.
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