Pomoc TS-832PXU kabel DAC do serwera

Po drugiej stronie mam serwer Lenovo z Proxmox, tam mi pokazuje auto-negotiations No, speed 10000. W QNAP nie widzę możliwości zmiany szybkości. Z konsoli mam to:
Settings for eth2:
Supported ports: [ ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: umb
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: no
Dziwne (a może nie?), że ip a nie pokazuje adresu przypisanego do interfejsu:

ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
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: eth3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether xx:xx:xx:xx:xx:2c brd ff:ff:ff:ff:ff:ff
3: eth2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 9000 qdisc mq state DOWN group default qlen 1000
link/ether xx:xx:xx:xx:xx:2b brd ff:ff:ff:ff:ff:ff
4: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether xx:xx:xx:xx:xx:29 brd ff:ff:ff:ff:ff:ff
inet 192.168.49.100/22 brd 192.168.51.255 scope global eth0
valid_lft forever preferred_lft forever
5: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether xx:xx:xx:xx:xx:2a brd ff:ff:ff:ff:ff:ff
6: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default
link/ether xx:xx:xx:xx:x:xx brd ff:ff:ff:ff:ff:ff
7: bond1: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default
link/ether xx:xx:xx:xx:x:x brd ff:ff:ff:ff:ff:ff
8: bond2: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
9: bond3: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
10: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff

MTU próbowałem 1500 i 9000 po obu stronach, nic.

Jeszcze tylko dodam, że mam wpisaną adresację na sztywno IP i MASKA, bez bramy i bez DNS. Ale próbowałem z wpisaną bramą, nic nie zmienia.