RAK7258 - Bad Gateway

Issue: Receive “Bad Gateway” when Browsing to RAK7258 on LAN

Setup: WisGateOS_1.3.1.bin

LoRa® Server:

Details: When I attempt to browse to my RAK7258 Gateway I get this error. The gateway is up and functioning. I can ping it.

I upgraded the software 3 weeks ago. All went well. Today I noticed this issue