Network crash

Issues related to configuring your network
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oxyg3n
Posts: 1
Joined: 2022/07/26 18:18:32

Network crash

Post by oxyg3n » 2022/07/26 18:27:43

Hello,

So ... my problem goes like this : just installed CentOS 7.9.2009 as a homelab.
Installed NetworkManager-wifi (it's on a laptop), works like a charm, connected on my wifi.
And ... here comes the problems : if i try to update the sistem (using yum), network crash (i think it crashes).

Code: Select all

=============================================================================================
 Package             Arch          Version        Repository                            Size
=============================================================================================
Installing:
 epel-release        noarch        7-14           /epel-release-latest-7.noarch         25 k

Transaction Summary
=============================================================================================
Install  1 Package

Total size: 25 k
Installed size: 25 k
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : epel-release-7-14.noarch                                                  1/1
  Verifying  : epel-release-7-14.noarch                                                  1/1

Installed:
  epel-release.noarch 0:7-14

Complete!
Loaded plugins: fastestmirror
Determining fastest mirrors
epel/x86_64/metalink                                                  |  31 kB  00:00:00
 * base: mirrors.primetelecom.ro
 * epel: mirrors.nav.ro
 * extras: mirrors.primetelecom.ro
 * updates: mirrors.primetelecom.ro
base                                                                  | 3.6 kB  00:00:00
epel                                                                  | 4.7 kB  00:00:00
extras                                                                | 2.9 kB  00:00:00
updates                                                               | 2.9 kB  00:00:00
(1/7): base/7/x86_64/group_gz                                         | 153 kB  00:00:00
(2/7): epel/x86_64/group_gz                                           |  96 kB  00:00:00
(3/7): extras/7/x86_64/primary_db                                     | 247 kB  00:00:01
(4/7): epel/x86_64/updateinfo                                         | 1.1 MB  00:00:05
(7/7): updates/7/x86_64/primary 31% [======-               ] 1.3 MB/s | 9.7 MB  00:00:16 ETA
If i try to ping the sistem, 100% loss. If i nmcli status, on the wifi card says Conected (green color), if i check the ip, it reads the ip assigned by my router.

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TrevorH
Site Admin
Posts: 33202
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: Network crash

Post by TrevorH » 2022/07/27 13:42:09

If you have a wired connection as well then I would recommend using that to run an initial `yum update` to get your system up to date. There will be newer kernels in the update list which may - or may not - have fixed a bug that you are hitting. Then reboot into the new kernel and re-test your wireless connection. Also look in your logs like /var/log/messages and see if there are errors in there. Do your keyboard LEDs all flash when it goes wrong?
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke

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