PracticalWeb Ltd

Websites that work for you.

three.co.uk 3G USB Modem - Filtering

Three are definately putting a transparent proxy between me and the network.

I just got this error message

Network Error (tcp_error) A communication error occurred: “Connection refused” The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time. For assistance, contact your network support team.

Which isn’t coming from my web browser (which has a different error page for this problem).

And it isn’t coming from the remote server as the message is that it couldn’t connect!

This is most definately filtering.

I’ve written a small script that outputs text after a couple of minutes. Over a normal ADSL connection it works fine.

But over three’s network I get the following results

(using telnet to ensure there is no other program in the way)

telnet www.practicalweb.co.uk 80 Trying 80.68.94.158… Connected to www.practicalweb.co.uk. Escape character is ‘^]’. GET /test.php HTTP/1.1 host: www.practicalweb.co.uk

HTTP/1.1 503 Service Unavailable Cache-Control: no-cache Pragma: no-cache Content-Type: text/html; charset=utf-8 Connection: close Content-Length: 732

Network Error

Network Error (tcp_error)

A communication error occurred: ""
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

For assistance, contact your network support team.

Connection closed by foreign host.

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