Account lockout message to user is NOT displayed when going thru RD Gateway

Question

We recently introduced account lockouts after 5 failed attempts for 30 minutes. Our users RDP to our server  thru TS Gateway before getting to the server. IIS7 configured to work with TS Gateway .
The problem is that when an account get locked because of 5 times invalid password, they do not receive the usual Account lockout error message to contact the admin to unlock it. Instead, it keeps asking for the username and password indefinitely. In other
words, the user have no way of knowing that his/her account is locked.
I noticed that within our LAN, when I RDP to the server directly (without going thru the TS Gateway), the message of account lockout appears normally and It says that you need to contact the admin to unlock the account.
This problem occurs only when going thru the gateway. Is there a way how to enable the error message to appear when the account is locked?

Answer 1

A) are these methods copied twice in the code here on purpose?
   connectChat() and onSynchronizationChange is repeated in code due copy paste mistake
B) are both users subscribing to _collectionNode right away? Do each of them
get to onSynchronizationChange?
   Yes , each of them get to onSynchronizationChange
C) If you put a breakpoint in onSynchronizationChange, do you see the node
get created? Do you see it in the dev console?
Yes , it is creating a node
D) Is user B receiving an onItemReceive at all? Is user A?
Yes , it is creating a node
Now both the user getting chat message, have following issue
When user A initiate the chat with user B this action is not opening chat pod / window on user B end which shows user A has initiated chat with user B
But when user B click on user A name to initiate the chat, this action opens a chat window and user B can see message send by user A
Above scenario is not normal chat behavior in which other user gets the notification of chat . what could be the problem