PCIe AER diagnose if hardware problem

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I’ve done upgrade to F39 (kernel 6.6.9) and I see many errors in kernel log, related to 1 NIC card ( I have 4 in same server) I’m trying to determine if this is hardware issue with that NIC card, or maybe some resource conflict. I moved NIC to another slot and problem is the same, and also it happens sometimes that card just can’t be put online, so I have to reboot server. Or maybe is a software issue, though server had F38 with 6.5.11 kernel running (cca 2mo w/o reboot) before upgrade and I didn’t see this issues.

 Jan  8 13:09:36 z4 kernel: pcieport 0000:00:1b.3: AER: Multiple Corrected error received: 0000:04:00.0
 Jan  8 13:09:36 z4 kernel: r8169 0000:04:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
 Jan  8 13:09:36 z4 kernel: r8169 0000:04:00.0:   device [10ec:8168] error status/mask=00000001/00002000
 Jan  8 13:09:36 z4 kernel: r8169 0000:04:00.0:    [ 0] RxErr                  (First)

lspci |grep Ethernet
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 03)
05:00.0 Ethernet controller: Intel Corporation 82575EB Gigabit Network Connection (rev 02)
05:00.1 Ethernet controller: Intel Corporation 82575EB Gigabit Network Connection (rev 02)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 16)

It’s always issue with the same card. It’s not really a problem to replace it, though it’s WAN link so I have to get my ISP to update dhcp reservation so I can’t play back and forth, and also server is a gateway to many computers

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It sounds like the card is failing since it follows that exact card even when it is relocated to another slot.

You probably need to work with the ISP to update the dhcp reservation and do that at the same time you replace the card.

Looking at the info you posted it seems the older (rev 3) of the Realtek cards so replacing it would probably be good anyway and I personally would use one of the intel cards like 2 of the others already are.

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Thanks @computersavvy, yes that card is in the server for 10+ years, I have few new ones TP-Link I believe, but not sure which chipset. Intel one is a nice dual NIC card x1 pcie, and works great, fairly new, but I don’t have spares.
I’ll just replace the old one.