So oddly I did speed test and found my setup was only getting 25mbps down on a 100mbps speed line.
I reset my modem and DGL-5500, but the DGL-5500 never found the internet again. It sits there and blinks orange forever. I have used this setup for years without issue. I plugged my cable modem direct into my PC and I have 100+ mbps now. It appears my DGL-5500 went awry at some point.
I pin poked the reset button and same issue. I unplugged everything for a moment and reset, same issue. I even tried to reflash the firmware in the browser and nothing. I can still access the browser admin section, but it cannot detect my internet type.
Perhaps this router has officially died?