xcp-ng 8 and 8.2 network speed problem

[enes.selcuk]

xcp-ng 8 and 8.2 network speed problem "Cannot advertise speed 1000"
I tried to provide the solution in the link below, but after the server restarted, you lost network access. I rolled back the operations in the same way again. can you help me

link

# ethtool -s eth3 speed 1000
Cannot advertise speed 1000

Settings for eth3:
	Supported ports: [ TP ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Supported pause frame use: Symmetric
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised pause frame use: Symmetric
	Advertised auto-negotiation: Yes
	Advertised FEC modes: Not reported
	Speed: 100Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 1
	Transceiver: internal
	Auto-negotiation: on
	MDI-X: on (auto)
	Supports Wake-on: pumbg
	Wake-on: d
	Current message level: 0x00000007 (7)
			       drv probe link
	Link detected: yes

[enes.selcuk]

ethtool -s eth3 autoneg off
ethtool -s eth3 duplex full
ethtool -s eth3 speed 1000

hello I did the above commands stuck at the last command network access is gone. Still did not respond. How can I solve if I need to wait command. The problem may be the cause. "ethtool -s eth3 speed 1000" I waited a long time for my article and access was gone.

[Danp]

Can't help with your issue, but wanted to point out that the article you linked only references Xenserver 6.X, so may not be applicable to newer versions.