Set the maximum number of WebSocket connections per server
- Policy ID
- IESF_WebSocketMaxConnectionsPerServer
- Scope
- Computer Configuration, User Configuration
- Supported on
- At least Internet Explorer 10.0
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Internet Explorer › Security Features › AJAX
Description
This policy setting allows you to change the default limit of WebSocket connections per server. The default limit is 6; you can select a value from 2 through 128.
If you enable this policy setting, Internet Explorer uses the WebSocket connection limit that you set with this policy setting.
If you disable or do not configure this policy setting, Internet Explorer uses the default limit of 6 WebSocket connections per server.
Options
Registry
ComputerHKEY_LOCAL_MACHINE
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_WEBSOCKET_MAXCONNECTIONSPERSERVER View registry values
- iexplore.exeREG_DWORD
UserHKEY_CURRENT_USER
HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_WEBSOCKET_MAXCONNECTIONSPERSERVER View registry values
- iexplore.exeREG_DWORD