Thank you for the report.
There is some confusion between the title and comment 0 about exactly which Intel device is not working. The title says "Intel 1210", the comment "Intel 1217-LM".

Can you say when this problem arose?
Has it always been the case, or has it shown since you added the realtek nic rTL8125?
Have the two onboard Intel controllers ever both worked?
Does the realtec device work OK?

To supplement the ifconfig output, please post that from:
 $ inxi -ni       [You may have to install inxi]
Its man page says "You should not paste your local WAN/IP".

I fixed the title.
I installed mageia-8 on the system yesterday.
I seem to recall that the 1217-lm worked before I ran all the updates, but I am not sure. I have had all the nics installed at all times.
The realtek device works great.

Here is the inxi -ni output:

inxi -ni
Network:
 Message: No Device data found.
 IF-ID-1: eno1 state: up speed: 1000 Mbps duplex: full
 mac: 00:25:90:d8:df:0a
 IP v4: 192.168.47.151/24 scope: global
 IP v6: fe80::225:90ff:fed8:df0a/64 scope: link
 IF-ID-2: eno2 state: up speed: 1000 Mbps duplex: full
 mac: 00:25:90:d8:df:0b
 IP v6: fe80::225:90ff:fed8:df0b/64 scope: link
 IF-ID-3: enp4s0 state: up speed: 2500 Mbps duplex: full
 mac: 00:8e:25:71:02:f5
 IP v4: 10.10.10.150/8 scope: global
 IP v6: fe80::28e:25ff:fe71:2f5/64 scope: link
 WAN IP: 75.85.182.170

Summary: intel 1210 NIC - no connection with mageia 8, works with windows 10 => intel 1217-lm NIC - no connection with mageia 8, works with windows 10

Sorry to have left you.
"No Device data found" is not helpful. I was hoping to see the actual devices & associated drivers; e.g.
 $ inxi -N
Network:
  Device-1: Intel Gemini Lake PCH CNVi WiFi driver: iwlwifi
  Device-2: ASIX AX88179 Gigabit Ethernet type: USB driver: cdc_ncm
How is the intel 1217-lm connected?

"the 1217-lm worked before I ran all the updates, but I am not sure"
Surely you know whether it worked after installing Mageia 8. If you suspect a driver change, we need to know what that was originally, and is now.

CC: (none) => lewyssmith

When I spoke of updated, I meant updates after installing mageia-8.
This is new hardware for me. The network does work sometimes, but it isn't working right now. Fortunately, The motherboard has 2 intel NICs built into it.
I also have a realtek 2.5g nic pci-e card.

Right now, the intel networks are down.
# inxi -N
Network:   Message: No Device data found.

inxi -n
Network:   Message: No Device data found.
           IF-ID-1: eno1 state: down mac: 00:25:90:d8:df:0a
           IF-ID-2: eno2 state: up speed: 1000 Mbps duplex: full mac: 00:25:90:d8:df:0b
           IF-ID-3: enp4s0 state: up speed: 2500 Mbps duplex: full mac: 00:8e:25:71:02:f5

Sorry it doesn't say more.

Thanks for the clarification about updates, comment 2.
I suppose we must see the system journal from a boot when at least one of the networks is down (better, like comment 2, both Intel ones).

Please do the following ASAP once you know the network situation:
 $ journalctl -b --no-hostname > journal.txt
 $ xz journal.txt
and attach to this bug the resulting compressed file 'journal.txt.xz'.

Created attachment 13860 [details]
journalctl output

Thanks for that.

To summarise what I deduce: interface
'enp4s0' is the realtek rTL8125 device with driver <r8169> (version: 5.15.110-desktop-2.mga8) which always works;

'eno1': onboard intel 1217-LM with driver <igb> (version: 5.15.110-desktop-2.mga8), which seems to be the troublesome one [title, comment 0, comment 4].

'en02': onboard intel 1210 with driver <e1000e> (version: 5.15.110-desktop-2.mga8), which normally works [comment 4]

Assigning this to kernel/drivers.

Assignee: bugsquad => kernel
CC: lewyssmith => (none)