Hi dmanguia,
Probably this thread can help: Seafile CE + Collabora integration
In fact your setup is different, you have self-signed certificates and you run the server on an internal network, but still…
Just a guess - try the following:
openssl genrsa -out /etc/loolwsd/key.pem 4096
openssl req -out /etc/loolwsd/cert.csr -key /etc/loolwsd/key.pem -new -sha256 -nodes
openssl x509 -req -days 365 -in /etc/loolwsd/cert.csr -signkey /etc/loolwsd/key.pem -out /etc/loolwsd/cert.pem
openssl x509 -req -days 365 -in /etc/loolwsd/cert.csr -signkey /etc/loolwsd/key.pem -out /etc/loolwsd/ca-chain.cert.pem
and in /etc/loolwsd/loolwsd.xml replace
localhost
with
your server FQDN, then restart it.
Good luck