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I'm new to Remote Utilities and have been testing it by connecting to remote PCs. It works ok with some, but on others it fails.

The host PC shows a "blue circle" indicating that it's able to connect,  but I can't connect to it using the Viewer. I checked the error log and it shows two error messages

Exception: HTTP/1.1 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. ISA Server is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests. ) (EIdHttpProxyError).

as well as

Internet-ID ErrorCode <> 0 Error code : 1

I can't change the proxy server settings, but my understanding is that if the circle is blue, it means connections are possible. Can you please advise on this matter?

Hello,

Thank you for your message.

KV Tan wrote:
The host PC shows a "blue circle" indicating that it's able to connect, but I can't connect to it using the Viewer.

Could you please specify which circle exactly do you mean? On the connection thumbnail in Viewer or on the Host tray icon?

On the Host tray icon.

The error log is from the Host as well.

Hello Tan,

Host is using 2 ports for connection. Most likely one of them is open and another is closed. Or your proxy is only blocking ssl on this ports, which is not required for checking the accessibility of the Server.

Don't hesitate to ask me, if you have any questions.