Cannot connect to secondary site through Orbi

[mmike62]

I am unable to access a secondary site when connected to the Orbi.  My connection goes through a HTC modem.  If i am on the HTC Wifi i have no issues.   If I am on a site and I need to click a link for secondary site i get the dreaded 401 error site is not availble.  Interned on the Orbi always shows as Offline yet i can get to any URL. Firmware V2.3.5.30.

[plemans]

You're running 2 routers at the same time.

https://kb.netgear.com/30186/What-is-Double-NAT

you'd want to place either the htc modem in passthrough mode/modem only mode or the orbi in access point mode.

that'll fix the double nat and potentially your issue.