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Knowledge Base > TR-069 > I received an invalid certification using HTTPS. What should I do?

I received an invalid certification using HTTPS. What should I do?

When using HTTPS, the ACS configuration on the CPE may need to use the domain name of the ACS rather than the IP address in order to validate the ACS server certificate. The default server certificate for the ACS included with CDRouter is registered to the domain name acs.qacafe.com. CDRouter will automatically configure this DNS name in all DNS servers used in CDRouter.

The ACS URL configured on the CPE should use the domain name.

For example: 

   https://acs.qacafe.com

The CDRouter configuration file would be as follows. 

   testvar acsIp 6.0.0.1
   testvar acsPort 443
   testvar acsTransport https

CDRouter will automatically map the testvar acsIp (6.0.0.1 in the example above) to the domain name acs.qacafe.com.