can not reach repositories, this website and random other websites (blocking)

[naive2021]

greeting

last two day i experience wired behavior from network.

1- can not refresh repositories, list update or update the system. it return some message(simply can not Reach the links).
2- when try use browser some websites can not reach it (did not load). but when i use proxy it open normally.
3- when try open same sites on mobile android system over wifi get same results. but when i turn off the wifi and open the mobile data network the website load(i did not test all website).
4- after loading the website using mobile data network on android i turn off the data and back to use the wifi for android system again and this time when try open same website it open.
5- so i clear the browser history (cookie and all thing) and try open same website using wifi on android system (mobile) but it did not open (load).
6- the blocked websites continue trusted websites (like this site, and some government site).
7- i use google dns, try use different dns provider but same results.

now every thing back to work normal but i try understand what happens
also if there's something i can do
thanks in advance

[nrickert]

A pure guess: a router went down between you and the opensuse systems. And the broken router has since been fixed.

It is hard to do more than guess without detailed information. But routers do go down, or drop some of their routes from time to time.

[naive2021]

A pure guess: a router went down between you and the opensuse systems. And the broken router has since been fixed.

It is hard to do more than guess without detailed information. But routers do go down, or drop some of their routes from time to time.

is there's some diagnose step that i can follow if that happen again in the feature

[kmeleon]

I have not experienced this with opensuse (yet), but I see this problem time to time with ubuntu, so I need to change repo paths from "http://cz.archive.ubuntu.com/ubuntu/" to "http://de.archive.ubuntu..." locations and it works then. On leap you can overwrite paths in directory /etc/zypp/repos.d from "http://download.opensuse.org" to some mirror like "http://ftp.gwdg.de/pub/opensuse/". Mirrors can be found on https://mirrors.opensuse.org/.

[naive2021]

I have not experienced this with opensuse (yet), but I see this problem time to time with ubuntu, so I need to change repo paths from "http://cz.archive.ubuntu.com/ubuntu/" to "http://de.archive.ubuntu..." locations and it works then. On leap you can overwrite paths in directory /etc/zypp/repos.d from "http://download.opensuse.org" to some mirror like "http://ftp.gwdg.de/pub/opensuse/". Mirrors can be found on https://mirrors.opensuse.org/.