07-19-2017, 05:19 PM
Hi,
archive.ubuntu.com (91.189.88.152) - this IP resolves to United Kingdom and it might be possible that there are temporary network or routing issues to it from Germany. While the public hotspots may actually be filtering out mirrors to manage load that's not usually the case.
You could try using a closer mirror and that should take care of the issue. To do so, open Software & Updates and select a mirror hosted in Germany, there are many there... else use the Select Best Server button (see screenshot below)
Cheers!
https://unlockforus.com
Sorry for seeming stupid and preferring Linux - I just don't know any better.
Sorry for seeming stupid and preferring Linux - I just don't know any better.