Every second boot the ethernet device is not recognized/found.
Output of lspci when et0 is recognized:
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00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 315M] (rev a2)
01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)
03:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 05)is simply missing.
How can I troubleshoot the issue?
I'm currently using the wlan card, but would prefer to use the ethernet, which works perfectly when it is recognized from the system.
I could find https://bugs.debian.org/cgi-bin/bugrepo ... bug=956868 but it does not explain why I am experiencing issues every second boot.
I've tried comparing the output of dmesg; when ethernet is found
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[ 4.378933] r8169 0000:02:00.0 eth0: RTL8105e, b8:70:f4:ca:2f:ee, XID 40a, IRQ 25
[ 4.380818] r8169 0000:02:00.0 enp2s0: renamed from eth0
....
[ 30.290696] r8169 0000:02:00.0: firmware: direct-loading firmware rtl_nic/rtl8105e-1.fw
[ 30.291165] RTL8208 Fast Ethernet r8169-0-200:00: attached PHY driver (mii_bus:phy_addr=r8169-0-200:00, irq=MAC)
I do not think it is a hardware bug; if the card is found it works without issues the whole time, also when running the debian installer from usb the card has always been detected (tried 2 or 3 times)
What could I do for finding the root cause?