In SELECTserver or gateWay logs, you get the message:
error 417 HTTP 417 : Expectation Failed
This is usually due to a proxy configured to use HTTP/1.0, and SELECTserver use HTTP/1.1
Some proxy can be configured or upgraded to support HTTP/1.1,
Before you attempt this option, please make sure that this will not have adverse effect on other systems in place
There are several way that you Network security department can set up to bypass the proxy for selected URL or products and service.
Please make sure that your organisation autorize this kind of configuration.
Look for the configuraiton file in the installation folder, by default C:\Program Files\Bentley\SELECTServer
For SELECTserver, configuration file is: Bentley.SelectServer.exe.config
For GateWay configuration file is Bentley.SelectServer.Gateway.exe.config
Make a backup copy of this file before editing it with notepad
Add these lines BEFORE the <runtime> Section
<system.net> <settings> <servicePointManager expect100Continue="false" /> </settings></system.net>
Save the file and restart the service
Connecting to the Bentley servers through Firewalls and Proxy Servers [FAQ]