Configuration issues with redirects across versions of www-i2.informatik.rwth-aachen.de may be causing access issues. The links below can provide alternative paths to reach the site:

http://www-i2.informatik.rwth-aachen.de https://www-i2.informatik.rwth-aachen.de

Or return to the current status page of www-i2.informatik.rwth-aachen.de.