I have bought a new motherboard with a build in LAN (1). When I add one of those (2), everything works fine, but when I add one more (2) all Lan adapters stops to work.
When I am with the 3 Lans, on the (1) I see very few packets RX/TX and on the other two those are 0.
Here are more dumps from ifconfig/ethtool/dmesg https://gist.github.com/gudata/77102c1abe1cd6a8949ac2f2b8bac6b1
Any ideas on what to check will be welcome.
04:00.0 Ethernet controller (0200): Intel Corporation I211 Gigabit Network Connection (8086:1539) (rev 03) Subsystem: ASRock Incorporation I211 Gigabit Network Connection (1849:1539) Kernel driver in use: igb Kernel modules: igb
03:00.0 Ethernet controller (0200): Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (10ec:8168) (rev 09) Subsystem: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (10ec:0123) Kernel driver in use: r8169 Kernel modules: r8169