MAC address unsuccessful registration

[johilario 0]

I'm hoping someone might know what is going on for this situation so here goes.

 

I just installed a new DVR where the cameras uses the coaxial cable. and uses lan cable connected directly to router, also configure it , also checked to routers management system, saw that the dvr is connected. when i try to register the mac address , dvr system refuse to register or registration unsuccessful. So I did the port fowarding test using "canyouseeme" website and found that the connection was refused.

 

What does that mean and is there a work around it?

 

If you need more info about this feel free to ask.

 

Thanks