On some occasions, especially if you are working behind a corporate or university firewall, you may find that the Intel® XDK will either not start or will function in what is known as “offline mode.” This is generally caused by problems with proxy settings, although it can also be caused by a bad or slow network connection. Unfortunately, there is no single solution to proxy problems; the solution depends on your development machine’s operating system (Microsoft Windows*, Apple OS X* or Linux*), the configuration of your firewall and/or proxy manager, your company’s IT network and application policies, etc.
If you see a screen or a dialog box like those shown below, and you have determined that the problem is not a network connection or quality problem, you may be working behind a firewall and your proxy settings may need to be re-configured.
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The following sections cover places where improper proxy settings can impact your ability to install, start or use the Intel XDK. They are listed in the recommended order to check (please finish reading the rest of this section before proceeding):
- Intel XDK system tool proxy settings
- Operating System proxy settings
- Browser proxy settings
- Java runtime proxy settings
If you are having proxy issues, usually one of the above proxy configuration points is responsible, but all are worth checking.
NOTE: Not every possible proxy solution is covered by this article. As new information and solutions are uncovered they will be added to this article. It is very important that you keep good notes regarding any changes you make to your proxy settings, so you can undo any unsuccessful changes you make!
NOTE: The Intel XDK uses only the HTTP and HTTPS protocols to communicate with its network components, so only the proxy settings for these two protocols need to be modified to address any proxy problems you may be having with the Intel XDK.
While you are working on proxy settings, it helps to keep the Intel XDK emulator window open (assuming it has been successfully installed and will start) so that you can monitor its connection status. If your proxy changes are successful you should see the Intel XDK window change to a screen like the following. In that case, push the connect button to have the Intel XDK re-establish its connections with the Intel XDK servers.
Intel® XDK Proxy Settings
The following screenshots were obtained on an OS X system, however, the instructions apply equally to Windows systems. On a Linux system there is no Intel XDK control tool for direct proxy configuration of the Intel XDK.
To configure the Intel XDK internal proxy settings locate the blue XDK icon (see image below) in your status bar and select Proxy Settings from the context menu. Select Manual Proxy Configuration from the Proxy Settings dialog box and provide the name and port number for your proxy server. This information is specific to your site, you may need to consult with your local IT support personnel to get the information you need for this dialog box.
NOTE: The proxy URI and port number shown below will not work on your system, they are for illustration only.
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Operating System Proxy Settings
Your development machine's operating system (and browser) proxy settings are the most fundamental proxy options and are probably set correctly if you are able to reach servers outside of your company's firewall.The following screen shots and text will help you locate the proxy settings for your specific OS.
NOTE: If you believe your OS proxy settings are incorrect, you should consult with your IT department to determine the proper settings, since changing the system proxy settings can impact virtually every network-aware application on your development system!
NOTE: The proxy URI and port numbers shown in the screen shots below will not work on your system, they are for illustration only.
Microsoft Windows*
There are multiple paths to get to the Windows system proxy settings. The most common route (shown below) is to open Internet Explorer and select Internet options from the Tools menu (or the gear menu, as shown here).
Then choose the Connections tab from the dialog box that appears and click the LAN settings button, as shown below.
From here you can manually configure the proxy server settings (most systems will be configured to Automatically detect settings).
If you wish to configure the proxy settings for individual protocols, select the Advanced button (above) and you will be presented with the following dialog box, where you can configure protocol-specific proxy settings.
Apple OS X*
To set the system proxy settings on an OS X system open System Preferences and select the Network application.
From here you must select the specific network interface for which you want to configure the proxy settings. In the example shown below the USB Ethernet interface has been selected for configuration.
After you've selected the network interface you need to change, click the Advanced... button and you will be presented with a dialog box where you can configure the proxy settings to match the requirements of your network. Note that Intel XDK uses both the HTTP and HTTPS protocols.
Linux*
...to be written...
Browser Proxy Settings
The Intel XDK requires the Google Chrome* browser to function. If you attempt to modify the Chrome browser's proxy settings you should be redirected to the operating system proxy settings described in the section above.
If you are curious, you can get to the Chrome proxy settings by following this sequence:
- "Customize and control Google Chrome" (three horizontal bars icon in the upper right corner)
- "Settings" (selected from the customize and control drop down menu)
- "Show advanced settings..." (link located at the bottom of the settings window that appears)
- "Change proxy settings..." (under the Network heading in the settings window)
Java Runtime Proxy Settings
On rare occasions, the Java runtime engine proxy settings can interfere with installation and startup of the Intel XDK. Normally, the Java runtime engine will work fine using the system or browser proxy settings. However, if you are having connection troubles and nothing else seems to work you might try adjusting the Java runtime proxy settings, it has been known to work.
Locate the Java Control Panel and make changes like those shown in the following screenshots. (OS-specific instructions on how to locate the Java Control Panel are given directly following this section.)
NOTE: the layout and controls in the Java control panel are consistent regardless of your operating system, these screenshots were taken on an OS X system, but they match very closely the dialog boxes you will see on Windows and Linux systems.
NOTE: The proxy URI and port number shown below will not work on your system, they are for illustration only.
Microsoft Windows*
The easiest way to locate the Java Control Panel on a Windows machine is to open the Windows Control Paneland type java in the Control Panel search box. These screenshots are from a Windows 8 system but this technique will work on older versions of Windows, as well.
Apple OS X*
To locate the Java Control Panel on an OS X system open the System Preferences app and type java in the search box.
Linux*
...to be written...