Unable to connect to primary replica VM of the SQLSERVER availability group

Hi,

I have configured an always-on availability group on 2 SQLSERVER nodes and one WSFC node. All reside within the same cluster.

I also configured Always-on Availability Group Listener. Have given the Load balanced endpoint for the 3 VM's as 1433 with direct server return enabled and have added rules for both the listener port and probe port 59999 in all the VM'S firewall. After I create the Listener in primary replica and bring it online I lose the connection to the VM. Have gone through all the Links referred in various blogs but I still have the issue and not able to connect through the Listener. I am not able to connect to the primary replica VM.

Please provide some suggestions to resolve this error.

Thanks and Regards,

Divya