Connecting to nec sl2100 with PCPro, I get "Cannot connect because it does not support encrypti

[telecomgear]

NECSL2100 with Sip trunks with Pepwave router. PBX is 192.168.9.250, my PC is 192.168.9.101. PCPro is 3.0, PBX is 3.0. I rebooted pc.
As soon as I try to connect, I get the cannot connect message.
I'm not sure what's going on.

 

[belevedere]

PCPro uses default port 8000. Make sure it is open in your network.
Connect directly to the SL2100 to test and eliminate the system as the problem.
Try connecting with WEBPro.

 

[telecomgear]

Thank you.