One of my general gripes about router manufacturer's is their panicky instructions to immediately update the firmware on a new router install. If followed to the letter, the user usually doesn't have any time to get familiar with the existing firmware.
I can hear Liam Neeson saying, "Hurry, there is no time"! 😄
My point is, router manufactures believe that their latest firmware is the best, but for no other reason than it's the latest. This, of course, is not always true. Newer is not always better.
So, when you mentioned at the top that you had just installed the combo unit and upgraded the firmware to v1.1.00.14, the natural presumption is that the router started out with the initial release of the v1.1.00.10 firmware.
Do you know if the Internet LED was blinking green on the initial v1.1.00.10 firmware before upgrading to the v1.1.00.14 firmware? Not what it did when you reverted back to the v1.1.00.10 firmware, but originally.
If you don't know the answer to this, then what we need is someone that also owns a DGND4000 who would share their experiences on the matter.
Meanwhile, when you changed firmware, did you share configuration files between firmware versions?
Saved configuration files are fine within the same firmware version, but should be avoided being used to prevent reintroducing issues between different firmware versions. Although most of the time you can get away with it, the proper way is to reset the router and enter everything from scratch. As mentioned in the link in my signature, step four.
Just a thought.
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