Networkmanager failes after 15.5 to 15.6

What blacklist?

You have not blacklisted anything.

You can download the three r8168 rpms and install them.

The ones are:
https://download.opensuse.org/repositories/home:/Sauerland:/hardware/openSUSE_Leap_15.6/x86_64/r8168-blacklist-r8169-8.054.00-lp156.64.1.x86_64.rpm
https://download.opensuse.org/repositories/home:/Sauerland:/hardware/openSUSE_Leap_15.6/x86_64/r8168-kmp-default-8.054.00_k6.4.0_150600.21-lp156.64.1.x86_64.rpm
https://download.opensuse.org/repositories/home:/Sauerland:/hardware/openSUSE_Leap_15.6/x86_64/r8168-ueficert-8.054.00-lp156.64.1.x86_64.rpm

Store them in the directory Downloads, open a terminal and goto the directory
cd Downloads
Now switch to root with su:
su

And install them:
zypper in -f r8168-ueficert-8.054.00-lp156.64.1.x86_64.rpm r8168-kmp-default-8.054.00_k6.4.0_150600.21-lp156.64.1.x86_64.rpm r8168-blacklist-r8169-8.054.00-lp156.64.1.x86_64.rpm

Now reboot and set up your network with NetworManager.

Nice try but

localhost:/home/gogalthorp/Download # zypper --no-refresh in -f  8168-blacklist-r8169 r8168-kmp-default r8168-ueficert
Error building the cache:
[repo-backports-update|http://download.opensuse.org/update/leap/15.6/backports/] Valid metadata not found at specified URL
History:
 - [|] Error trying to read from 'http://download.opensuse.org/update/leap/15.6/backports/'

Warning: Skipping repository 'Update repository of openSUSE Backports' because of the above error.
Error building the cache:
[repo-sle-update|http://download.opensuse.org/update/leap/15.6/sle/] Valid metadata not found at specified URL
History:
 - [|] Error trying to read from 'http://download.opensuse.org/update/leap/15.6/sle/'

Warning: Skipping repository 'Update repository with updates from SUSE Linux Enterprise 15' because of the above error.
Some of the repositories have not been refreshed because of an error.
Loading repository data...
Reading installed packages...
Forcing installation of 'r8168-kmp-default-8.053.00_k6.4.0_150600.23.25-150600.2.pm.1.x86_64' from repository 'Packman Repository'.
'8168-blacklist-r8169' not found in package names. Trying capabilities.
No provider of '8168-blacklist-r8169' found.
'r8168-ueficert' not found in package names. Trying capabilities.
No provider of 'r8168-ueficert' found.
Resolving package dependencies...

The following NEW package is going to be installed:
  r8168-kmp-default

1 new package to install.

Package download size:   185.9 KiB

Package install size change:
              |       1.1 MiB  required by packages that will be installed
     1.1 MiB  |  -      0 B    released by packages that will be removed

Backend:  classic_rpmtrans
Continue? [y/n/v/...? shows all options] (y): y
Retrieving: r8168-kmp-default-8.053.00_k6.4.0_150600.23.25-150600.2.pm.1.x86_64 (Packman Repository)                                 (1/1), 185.9 KiB    
Retrieving: r8168-kmp-default-8.053.00_k6.4.0_150600.23.25-150600.2.pm.1.x86_64.rpm ..............................................................[error]
Download (curl) error for 'http://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Leap_15.6/Essentials/x86_64/r8168-kmp-default-8.053.00_k6.4.0_150600.23.25-150600.2.pm.1.x86_64.rpm':
Error code: Connection failed
Error message: Could not resolve host: ftp.gwdg.de

Abort, retry, ignore? [a/r/i/...? shows all options] (a):     
Problem occurred during or after installation or removal of packages:
Installation has been aborted as directed.
Please see the above error message for a hint.

:grimacing:
Still have r8169 used

Simply provide the full path to the packages…

zypper --no-refresh in -f  /<the path where you stored the rpms>/8168-blacklist-r8169 /<the path where you stored the rpms>/r8168-kmp-default /<the path where you stored the rpms>/r8168-ueficert

Replace /<the path where you stored the rpms>/ with the correct path…

It was my fault, I have changed it in the post, that should work if you are in the directory where the rpms are stored.

Or, explained by you, use the full path.

Looks like that worked at lest it said it installed complaints about having no key (dead internet??)

Rebooting

Thats because the packages are signed with a key, but without Internet zypper/rpm can not download the public key of my hardware Repo to compare.
No Problem, only a warning to trust downloaded packages.

ARRRG

ocalhost:/home/gogalthorp # systemctl status NetworkManager.service
● NetworkManager.service - Network Manager
     Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; preset: disabled)
     Active: active (running) since Sat 2024-11-30 11:05:33 EST; 10min ago
       Docs: man:NetworkManager(8)
   Main PID: 1307 (NetworkManager)
      Tasks: 4 (limit: 4915)
        CPU: 1.257s
     CGroup: /system.slice/NetworkManager.service
             └─1307 /usr/sbin/NetworkManager --no-daemon

Nov 30 11:15:55 localhost.localdomain NetworkManager[1307]: <info>  [1732983355.6739] audit: op="connection-activate" uuid="7ba00b1d-8cdd-30da-91ad-bb83ed4f7474" name="eth0" pid=1859 uid=1000 result="success"
Nov 30 11:15:55 localhost.localdomain NetworkManager[1307]: <info>  [1732983355.6739] device (eth0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Nov 30 11:15:55 localhost.localdomain NetworkManager[1307]: <info>  [1732983355.6743] manager: NetworkManager state is now CONNECTING
Nov 30 11:15:55 localhost.localdomain NetworkManager[1307]: <info>  [1732983355.6945] device (eth0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Nov 30 11:15:55 localhost.localdomain NetworkManager[1307]: <info>  [1732983355.7436] device (eth0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Nov 30 11:15:55 localhost.localdomain NetworkManager[1307]: <info>  [1732983355.7445] dhcp4 (eth0): activation: beginning transaction (timeout in 45 seconds)
Nov 30 11:16:02 localhost.localdomain NetworkManager[1307]: <info>  [1732983362.1638] device (eth0): state change: ip-config -> unavailable (reason 'carrier-changed', sys-iface-state: 'managed')
Nov 30 11:16:02 localhost.localdomain NetworkManager[1307]: <info>  [1732983362.1956] dhcp4 (eth0): canceled DHCP transaction
Nov 30 11:16:02 localhost.localdomain NetworkManager[1307]: <info>  [1732983362.1957] dhcp4 (eth0): state changed no lease
Nov 30 11:16:02 localhost.localdomain NetworkManager[1307]: <info>  [1732983362.2170] manager: NetworkManager state is now DISCONNECTED
loc

ocalhost:/home/gogalthorp # /sbin/lspci -nnk | grep -iA3 net
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
        Subsystem: Gigabyte Technology Co., Ltd Onboard Ethernet [1458:e000]
        Kernel driver in use: r8168
        Kernel modules: r8169, r8168

Try to edit your config of the Network-Manager?

Or use another Lan Cable?

tried rebooting modem cable was ok yesterday with 15.5

NetWork config looks the same setting as the gui

[connection]
id=eth0
uuid=7ba00b1d-8cdd-30da-91ad-bb83ed4f7474
type=ethernet
autoconnect-priority=3
zone=public

[ethernet]
auto-negotiate=true

[ipv4]
dns=8.8.8.8;
method=auto

[ipv6]
addr-gen-mode=stable-privacy
method=auto

[proxy]

as reference

What about:
REestricted to device in your Screenshot?
Or IPV4?

no go restricted to eth0

ipv4 is

Can you please show us the output from
ip link
and then for the actual ethX device concerned, check ethtool output as well eg
/usr/sbin/ethtool eth0

ogalthorp@localhost:~> ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether e0:d5:5e:73:cd:a8 brd ff:ff:ff:ff:ff:ff
    altname enp3s0
3: vboxnet0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 0a:00:27:00:00:00 brd ff:ff:ff:ff:ff:ff

Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
                                             1000baseT/Half 1000baseT/Full
        Link partner advertised pause frame use: Symmetric Receive-only
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 100Mb/s
        Duplex: Full
        Auto-negotiation: on
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        MDI-X: on
        Supports Wake-on: pumbg
        Wake-on: g
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: yes
l

Ok, so you’re using auto-negotiation (as expected), but even though both ends are capable of supporting 1Gb/s FD, maybe the ethernet cable is not that great specification, or there is some other issue limiting you to 100Mb/s FD. Not necessarily a problem for you, but check that the link is not flapping from time to time.

Not getting a lease from the router for some reason. Did you try restarting the router? Eliminate that as a cause perhaps.

Try also configuring a suitable static IP for your LAN. You’ll need to configure the router GW address and DNS as well. See if that works as expected, then we can investigate the router for any potential DHCP issues.

1 my Internet is 100Mb modem is 1 gig capable
all other Net connection work via WIFI and work this computer has no WIFI
Cable should be OK worked 2 days ago before I upgraded to 15.6
VM Windows works fine.
NetMan GUI says is set 100 MEG and non editable

2 Restarted started cable Modem am connected direct to modem

3 Will try static address