Yes, it supports NAT loop back.

Shield101 wrote

Yes, it supports NAT loop back.

How is this feature enabled?

it is enabled by default in the software.

I also have a Archer C2300 and a Engenius AP ECB300. I can access all my servers from the internal ip address or outside my network via URL but sometimes cannot access all my servers via URL when inside my network. It seems to be related to whether the server is connected wirelessly or wired from the router's perspective. Either wired works or wireless works but not both. For example, if I can access my server that is connected wirelessly via the URL when inside my network, I can't access the servers that are wired via URL but can via IP address when inside my network. Some days it would switch and I can access the wired servers but not the wireless servers via URL. There doesn't seem to be any pattern. I have about 5 wired servers and 3 wireless servers and about 25 clients that can be both wired and wireless. It's considered wired if it connects wirelessly to my Engenius AP. There are no errors in the log and everything else seems to work great. Anyone have any ideas what is going on? Thanks.