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Technical Operations > ICE Server > Special considerations for ICE Desktop for Web > Connection Limitations
Connection Limitations
Channels in the browser must be configured to use a Rallypoint connection (not multicast/RTP) or else they will appear disabled and display a 'Channel not available on web' message.
However, unlike native clients, the web browsers cannot establish raw TLS sockets with a server. Instead, ICE Desktop for Web connects to the Rallypoint using a secured web socket. Since the web socket cannot share the same port as the TLS socket, the Rallypoint now listens on two ports: typically 7443 for TLS and 8443 for web sockets.
ICE Desktop for Web requires the following conditions to be met in order for a channel to operate within a browser:
*Only Rallypoint versions 1.236 and newer are compatible with ICE Desktop for Web. Web clients will not be able to establish a connection to external or tactical Rallypoints running older software.
*Rallypoints must be configured to use port 7443 in ICE Desktop (under Settings → Rallypoints).
*Tactical Rallypoints (those configured manually) must be configured to enable web socket connections on port 8443 and accept client connections on 7443.