Error: Network error (tcp_error) when browsing the Internet; 503 error returned
Error: Network error (tcp_error) when browsing the Internet
You get: Request could not be handled when browsing the internet.
There are many reasons a Network Error (tcp_error) is returned from the ProxySG. Below are several examples that Blue Coat Technical Support has encountered.
For a new implementation or topology change, the IP gateway may be misconfigured, there may be a Layer 2 / 3 loop on the network, asymmetric routing or something upstream is not passing the proxy's traffic to the Internet.
If the problem occurs with a specific URL/destination, it may be due to one of the following:
Please obtain a packet capture when the problem occurs. It is very important to see what is happening on the wire. You can take packet capture from the proxy by going to the URL below:
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