Environment
Situation
Resolution
In Chrome:
- chrome://flags/#tls13-variant
- Change TLS 1.3 to Disabled
- restart Chrome
In Firefox:
- Enter about:config in the address bar and press enter
- In the search space enter tls
- Change the value for security.tls.version.fallback-limit from 4 to 3
- Change the value for security.tls.version.max from 4 to 3
- Restart Firefox
If that resolves your issue, then there will be probably more users at your site having the same problems.
You can disable this protocol version on your server site by editing server.xml file located in /opt/novell/groupwise-tomcat/conf directory.
By default, we use to secure tomcat section (via the ".keystore file) and there is a corresponding section like:
<Connector address="127.0.0.1" port="18080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="18443" />
add there a single line which would restrict the protocol version to TLSv1.2:
<SSLHostConfig protocols="TLSv1.2">
This section of the server.xml file will then look like:
<Connector address="127.0.0.1" port="18080" protocol="HTTP/1.1"
<SSLHostConfig protocols="TLSv1.2">
connectionTimeout="20000"
redirectPort="18443" />
Save the changes and restart tomcat, i.e. rcgrpwise-tomcat restart.