Unable to connect to the UCP Node Server because: 'Error: xhr poll error

@tm1000 @PitzKey I was looking at what you guys suggested, some configuration were over looked/ thanks again

Thank you all for our advice and suggestions.
I was able to use Self-cert for testing and enable UCP without error. Problem was the configuration between my self-cert that was created and configuration in the Certificate Manger Front end. Hope this might help someone in the future.

Steps that was execute to accomplish task on using self-certification using Freepbx 14

Environment;
FreePBX 14 ISO
Create Virtual machine with 2 CPU 4 GB memory, 100 GB HDD add ISO from FreePBX dl section
Configured static IP Address
Edit hostname
Edit /etc/hosts file < IP Address>
Edit local DNS an add FreePBX server to DOMAIN + PTR (reverse lookup)
During the Installation I create user = root +password
Active Account = email log into portal “Active”
Enable firewall
Update System through GUI. Admin > Updates > System Updates execute check online /process
Update Modules through GUI Admin > Updates > module Updates execute check on line /process
Create EXT=101 + called greg + Create user greg and configured password
Certificate manager create a new on with FQDN of FreePBX server
Navigate to > System Admin > HTTPS SETUP then Import Certificate
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Configure Ports
Navigate to System Admin > port Management


then Update Now.
Reboot
Create self-signed cert
root# openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout webserver.key -out webserver.crt
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Copy Created certs made

Navigate to Certificate Management
and filled out the cert name “sysadmin”

Apply configuration

Enable sysadmin ( green check mark)

Enabled Phone Service for user
and Completed, No problems and error /s are gone UCP working fine
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