Ubuntu – No Ethernet Connection on Intel X722 10GBase-T Controller

I'm trying to connect a server with installed Ubuntu-Server to the Internet via Ethernet cable with no success.

Here is the link to the platform we use – https://www.supermicro.com/en/products/system/4u/7049/sys-7049p-trt.cfm

The cable itself is fine (we tested connection on a laptop). When plugged into one of two LAN ports on the server LED slowly flickers green (approx once in 5 seconds).

We tried both Ubuntu-Server 22.04 and 18.04 with same results.

Running ip a command outputs

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eno1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 3c:ec:ef:0f:7a:28 brd ff:ff:ff:ff:ff:ff
3: eno2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 3c:ec:ef:0f:7a:29 brd ff:ff:ff:ff:ff:ff

and turning devices eno1 and eno2 off and back on doesn't remedy the situation.

Running ethtool eno1 shows

Settings for eno1:
    Supported ports: [ ]
    Supported link modes:   1000baseT/Full 
                            1000baseKX/Full 
                            10000baseT/Full 
                            10000baseKR/Full 
    Supported pause frame use: Symmetric Receive-only
    Supports auto-negotiation: Yes
    Supported FEC modes: Not reported
    Advertised link modes:  1000baseT/Full 
                            1000baseKX/Full 
                            10000baseT/Full 
                            10000baseKR/Full 
    Advertised pause frame use: No
    Advertised auto-negotiation: Yes
    Advertised FEC modes: Not reported
    Speed: Unknown!
    Duplex: Unknown! (255)
    Port: Other
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: off
    Supports Wake-on: g
    Wake-on: g
    Current message level: 0x00000007 (7)
                   drv probe link
    Link detected: no

From what I researched (I looked up this guide https://devicetests.com/troubleshoot-eth0-no-carrier-find-ip-address-ubuntu) seems like NO-CARRIER status from ip a and Link detected: no should mean that cable is disconnected but it's not the case.

Changing speed and duplex through sudo ethtool -s eno1 speed 100 duplex full doesn't work and outputs

Cannot set new settings: Invalid argument
  not setting speed
  not setting duplex

We also checked network controller drivers but seems like they are installed as could be judged from modinfo i40e output

filename:       /lib/modules/4.15.0-156-generic/kernel/drivers/net/ethernet/intel/i40e/i40e.ko
version:        2.1.14-k
license:        GPL
description:    Intel(R) Ethernet Connection XL710 Network Driver
author:         Intel Corporation, <[email protected]>
srcversion:     304E7F43D32C80652A1A2A9
alias:          pci:v00008086d0000158Bsv*sd*bc*sc*i*
alias:          pci:v00008086d0000158Asv*sd*bc*sc*i*
alias:          pci:v00008086d00001588sv*sd*bc*sc*i*
alias:          pci:v00008086d00001587sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D3sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D2sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D1sv*sd*bc*sc*i*
alias:          pci:v00008086d000037D0sv*sd*bc*sc*i*
alias:          pci:v00008086d000037CFsv*sd*bc*sc*i*
alias:          pci:v00008086d000037CEsv*sd*bc*sc*i*
alias:          pci:v00008086d00001589sv*sd*bc*sc*i*
alias:          pci:v00008086d00001586sv*sd*bc*sc*i*
alias:          pci:v00008086d00001585sv*sd*bc*sc*i*
alias:          pci:v00008086d00001584sv*sd*bc*sc*i*
alias:          pci:v00008086d00001583sv*sd*bc*sc*i*
alias:          pci:v00008086d00001581sv*sd*bc*sc*i*
alias:          pci:v00008086d00001580sv*sd*bc*sc*i*
alias:          pci:v00008086d00001574sv*sd*bc*sc*i*
alias:          pci:v00008086d00001572sv*sd*bc*sc*i*
depends:        ptp
retpoline:      Y
intree:         Y
name:           i40e
vermagic:       4.15.0-156-generic SMP mod_unload modversions 
signat:         PKCS#7
signer:         
sig_key:        
sig_hashalgo:   md4
parm:           debug:Debug level (0=none,...,16=all), Debug mask (0x8XXXXXXX) (uint)

Running dhclient -v eno1 shows No DHCPOFFERS received

Also during our research we encountered this thread (https://community.intel.com/t5/Server-Products/NIC-X722-for-10GBASE-T-rev-09-Ubuntu-Server-20-04-02-Can-t/td-p/1286202) that might be similar to our situation. Our setup would correspond to Picture 1 from the original post as our network also uses DHCP. Another similarity is that physically moving the server to another room and/or assigning it a static IP might also be problematic in our case.

Any help would greatly appreciated. Thanks!