Some thoughts:

Try recreating the container  sh /opt/novell/base_config/CEcontainerRecreate.sh

Try redeploying a new CE appliance

What certificate are you using? some CAs have some intermediary certs that cause problems, try a file with just the public cert and key.

Hi Robin,

getting back to this:

1) Recreating the container had no effect. 2) We are using lets-encrypt as our certs. 3) redeploying a new appliance with self-signed certificated worked up until the latest update (OpenText branding), at which time I received the same:

This page isn’t working

If the problem continues, contact the site owner.

If this is still an issue, will you duplicate the problem and provide access to the /var/opt/novell/contenteditor/logs/coolwsd.log?

what happens when openssl s_client -connect filr.company.com:443 or ce.company.com:443 is queried.
Please enter on both systems. Are there errors?

to see the chain "-showcerts" option is needed

clearly --showcerts is necessary. My little text was a hint to approach the problem with openssl.
I trust that the admins here know openssl can be used as a tool with many possibilities.

Hi All;

Thanks for the input. 

This issues was escalated to OT support who provided the following temporary fix:

"Add enable.content.editor.check=false in /opt/novell/filr/apache-tomcat/webapps/ssf/WEB-INF/classes/config/ssf-ext.properties"

We are still investigating the root cause as we have upgraded this system for several years and this is the first occurrence.