I have a couple of websites I host on a web server that runs on my LAN. They are externally reachable through port forwarding set up on my Z100G. I can reach the websites with no problem internally using their internal IP address. I can also reach them with no problem externally using their DNS names. However, I am only partially successful trying to reach them internally using their DNS names. I can actually contact the website, and get partial content downloaded to my browser, but the pages take a very long time to load, and rarely finish complete (missing images, etc). Note that these are simple HTML pages with nothing fancy on them.

This used to work for me. Recently, two change occurred. One is that I bridged my LAN and WLAN. Second, I received a firmware upgrade to 7.5.41x. Unfortunately, this happened on the same day so I am unable to determine when it stopped working.

I tried rolling back my bridge, but after experiencing that this was not as simple as it should be, I left it the way it was (bridged). I don't see any option of rolling back the firmware upgrade, other than resetting the Z100G, which I do not want to do.

Anyone have any suggestions as to what I should try next? I'm not a network engineer or an IT guy, so don't omit the obvious.