Cannot successfully connect to dynamic DNS setup

[dgj]

If it helps I see from Wikipedia that the block 100.64.0.0/10 (100.64.0.0 to 100.127.255.255, netmask 255.192.0.0) is allocated for CGN scenarios.

Private network | Dedicated space for carrier-grade NAT deployment

@axell Checking my router’s IPv4 address is how I detected that I was behind a CGN. At the following post, Sunil offers some suggested ways around a CGN to access the FreedomBox.

Let's Encrypt "Failed to obtain certificate ..."

Thank you for the help! I did port-forwarding on the router (ports 80 and 443). I verified my IP address and tried to reach my FreedomBox in a browser. I get a time out. I think I figured out the problem, though. I think my ISP (PYUR, was Tele Columbus, in Germany) uses a Carrier-Grade NAT (CGN). When I checked my router’s IPv4 address it appears to be a private address (e.g., 100...**). What options are there for getting around a CGN to access a FreedomBox?