How do I update an expired TR-069 related certificate?

By default CDRouter uses the SSL certificate acs.cdroutertest.com.pem for all ACS sessions requiring HTTPS. This certificate is located in the following directory on your CDRouter Linux host:

/usr/cdrouter/tests/acs.cdroutertest.com.pem

Likewise, the intermediate CA certificate is located here:

/usr/cdrouter/tests/acs.cdroutertest.com-ca.pem

And the root CA is located here:

/usr/cdrouter/tests/acs.cdroutertest.com-rootca.pem

More information can be found here: What root certificate must be installed to verify acs.cdroutertest.com.pem?