How to Configure Settings Correctly (WordPress ↔ FlashChat)
1) In the FlashChat admin panel (for each server):
Enable Single Sign-On = On
Single Sign-On Mode = JWT
JWT Secret: The same value as Shared Secret in WordPress (exactly the same)
JWT Source (optional): If you place it in one location, it must be placed in the same location professionally.
Example: https://123flashchat.net/wp
JWT Audience (optional): Must also match.
Example: FlashChat
Clock Tolerance: 120–300 seconds is suitable
Important Note from your image: If you have a full “JWT Secret” in the admin panel and you have a different, outdated secret, SSO will not work. You must ensure that the secret on the server is currently in the plugin.
2) In WordPress (Settings → FlashChat SSO)
Chat URL: The correct chat.html URL on the chat domain
Primary API URL: https://YOUR_CHAT_DOMAIN/api/v1
API Key: The same username as api_key found on the web
Server Name: Exactly the same as the server name
Shared Secret: According to the JWT secret on the server
Sender/Public JWT: Either leave them halfway between both, or set them to the same value in both
