First off, I'm guessing this is actually a relatively easy problem to solve. I unfortunately don't have a ton of experience with SonicWall (we use WatchGuard at work) and the UI on their devices is so eye-bleedingly bad, I don't really know where to start working on this. I have a client who runs a translation business. They don't have a huge office but a previous IT consultant of theirs installed a SonicWall which they continue to use, despite it being overkill for their operation. They have a Windows 2008 server that hosts an Active Directory domain. The domain is called CompanyX.com on Active Directory (not going to post their real domain publicly) and it's the same as the domain where their e-mail and web site are hosted on.
The problem is that they can't read or edit their web site from inside their network. If they try to go to www.companyx.com, they get a message saying the web site is not available and to come back soon. It doesn't time out, that's an error page being generated from somewhere and it works perfectly fine from anywhere else. I'm presuming this is because something with the SonicWall is trying to direct internal web requests to that domain to somewhere other than their web hosting company. If they try to access the Outlook Web Access on their hosted Exchange service, that works fine. This has been a problem for a long time but they need to start updating their web site more frequently and thus, need to get this fixed.
Does anyone with SonicWall knowledge have an idea what this could be? Like I said, I'm sure it's not a difficult problem for someone with more SonicWall experience than I have. Thanks guys!