Switched From Verizon to FirstNet cell network, port forwarding does not appear to be working

So I am working on a old military base, due to its remote location we are running off a cell data network on Saturday we switched from a Verizon network to AT&T's FirstNet network. People working at different locations need to be able to access this network remotely to sign into a NAS where mission-critical data is stored. We had websitex.com redirect into the myqnapcloud login page so people could login remotely and sign into the NAS. When we switched over to the FirstNet network we were initially told that they did not give out static ip's for security reasons. We were eventually able to secure a static ip through the state. We are using a cradlepoint aer2200 router that we had to do a factory reset on in order for it to register the new static ip. After that we set up port forwarding on ports 80, 8081 and 443 on the router so that whenever people type in websitex.com they can login into the NAS. However currently whenever someone types in websitex.com they are directed to the cradlepoint routers admin login page. So port-forwarding doesn't seem to be working? Anyone have any ideas?