NET::ERR_CERT_AUTHORITY_INVALID with and without SSL

[laptopemt]

I am running a home lab with some services that I would like to expose to the outside world

Nginx Proxy Manager is being hosted local within docker

On my TPLink router i have setup port forwarding for both port 80 and 443 to the IP of the Nginx Proxy Manager

I have setup the DNS records with Google domains to point to my public IP assigned by my ISP

Within in Nginx Proxy Manager i was able to get an SSL from lets encrypt

I setup proxy host to use the SSL and point to the private IP of the service i would like to expose.

When ever I try and pull up the domain i get the following error

NET::ERR_CERT_AUTHORITY_INVALID

Looking at the certificate that the browser is getting, the issuer is listed as tplinkwifi.net. I would expect this to be LetsEncrypt??

I dont see any setting within my router to correct this, i am not sure if this is a setting within Nginx Proxy Manager??

Any Suggestions?

Thank You
Michael