Hey gang.

Having a heck of a time getting unraid to negotiate a 10gbps connection. I see the following in the syslog (unraid server name is tower). As you can see, the initial negotiation happens at 10gbps, but is then downgraded for some reason.

The NIC is an Intel X540 connecting to the 10GB port on a Bell Gigahub device. I have already swapped cables to a known good Cat6 cable, however the issue persists.

May 25 22:33:20 Tower kernel: ixgbe 0000:02:00.0 eth0: NIC Link is Up 10 Gbps, Flow Control: None
May 25 22:33:20 Tower kernel: br0: port 1(eth0) entered blocking state
May 25 22:33:20 Tower kernel: br0: port 1(eth0) entered forwarding state
May 25 22:33:21 Tower kernel: ixgbe 0000:02:00.0 eth0: NIC Link is Down
May 25 22:33:21 Tower kernel: br0: port 1(eth0) entered disabled state
May 25 22:33:32 Tower kernel: ixgbe 0000:02:00.0 eth0: NIC Link is Up 10 Gbps, Flow Control: None
May 25 22:33:32 Tower kernel: br0: port 1(eth0) entered blocking state
May 25 22:33:32 Tower kernel: br0: port 1(eth0) entered forwarding state
May 25 22:33:33 Tower kernel: ixgbe 0000:02:00.0 eth0: NIC Link is Down
May 25 22:33:33 Tower kernel: br0: port 1(eth0) entered disabled state
May 25 22:33:36 Tower kernel: ixgbe 0000:02:00.0 eth0: NIC Link is Up 1 Gbps, Flow Control: None
May 25 22:33:36 Tower kernel: br0: port 1(eth0) entered blocking state
May 25 22:33:36 Tower kernel: br0: port 1(eth0) entered forwarding state

Sorry, should have mentioned, I upgraded to 7.3 as part of troubleshooting, however the issue remains.

Attach Diagnostics ZIP to your NEXT post in this thread.

Diagnostics attached.

tower-diagnostics-20260525-2314.zip

This can only be NIC, cable or switch/router.