Hi, we seem to have two issues raised by two different folk here, it seems the OP moschops, was on HFC, and is now on UFB as he mentions MyRepublic used by the previous home owners, and we also have Kaczor47 who states he has no ONT and it appears he is on a HFC FibreX Max connection, so he has not ONT, so there will ben a DOCSIS3.1 HFC modem instead.
As others have said, first confirm your router has a GigE connection on its WAN port, once that is established to not be an issue you can then start looking at the provisioning stance.
Yep - big difference between (real) Fibre and FibreX. Also the speeds noted by moschops line up with a different plan so a provisioning error is feasable.
now if only cable would stop being sold as a fibre product.............................
Amen to that (personal opinion only 😀)