I am wondering if there is an issue with connecting to ispconfig.org via IPv6? I just tried to update using ispconfig_update.sh But after a while, I got the following rejection: Unable to retrieve version file. So I tried the manual route but wget wouldn't fetch. It did fetch for other websites though. It finally worked when I forced it to use IPv4: wget --inet4-only https://www.ispconfig.org/downloads/ISPConfig-3.2.7p1.tar.gz I am also wondering if it would be useful to have an IPv4 flag for the script. In my googling on the issue, I noticed that a couple of people may have had a similar issue.