I'm unable to launch AltspaceVR

There are several reasons why AltspaceVR may not launch for you. Try out the following steps to ensure the application is installed correctly with the necessary third-party software.

If you are trying to launch AltspaceVR for the first time:

• Make sure you have the latest Oculus Software installed, and that Settings-> General-> Unknown Devices is set to ON. If launching in 2D mode, you do not need Oculus installed.
• Make sure that you have a working internet connection. If you are attempting to launch Altspace from within a network firewall, please open UDP ports 5055 and 5056, as well as TCP ports 80 and 443. If you are within the network of a corporate or educational firewall, you may need to contact the network administrator or IT department.

If the program was working, but ceased to launch after update:

• Perform a 'Clean Reinstall' of the software. This requires you to uninstall or remove existing versions of the Application. Once fully removed from your system, install Altspace via Steam or Oculus, or if using the standalone client, download a fresh installer for PC and install as you normally would.
• If you do have a problem launching AltspaceVR, please let us know via a support ticket. Please include a log file from your session.