tls 1.2 issue (browser side times out)

[softreigns]

I am using the tls12 in the configuration and the supersocket server starts fine and performance collector is showing fine too.
The browser connects fine when I am using just "tls" in the security.

When I am connecting to the browser with server running in "tls12" mode, the server shows that the connection has opened and the collector also shows the connection.

2018-11-09 11:43:47,365 [7] INFO SecureSuperWebSocket - Session: 879cc16b-32cf-4b5c-83e8-18798e46ae36/127.0.0.1:58335
A new session connected!
2018-11-09 11:43:48,591 [6] INFO Performance - ---------------------------------------------------
CPU Usage: 1.93%, Physical Memory Usage: 45,481,984.00, Total Thread Count: 21
AvailableWorkingThreads: 32766, AvailableCompletionPortThreads: 1000
MaxWorkingThreads: 32767, MaxCompletionPortThreads: 1000
SecureSuperWebSocket ----------------------------------
Started Time: 11/9/2018 11:42:19 AM
Is Running: True
Total Connections: 1
Maximum Allowed Connection Number: 100
Total Handled Requests: 0
Request Handling Speed (#/second): 0
Avialable Sending Queue Items: 255
Total Sending Queue Items: 256

But on the browser side, in few sec the connection errors out
WebSocket connection to 'wss://server' failed: WebSocket opening handshake timed out