The primary WWW proxy server, cache1.ru.ac.za, will have its memory upgraded at 5:00 this afternoon. This upgrade should be completed in ten minutes, and should be unnoticable to users whose web browsers are correctly configured to use the proxy.pac file's settings.
If your browser loses access to the Internet during this time, please close it and restart it, and it should use one of the backup proxy servers automatically. Should you have software that does not use the proxy.pac, please configure it to use cache2.ru.ac.za temporarily.