X550-T2 adapter fails after updating driver to version 29.4 on Windows 11

[MarKrok]

Never had a problem with the excellent X550-T2 adapter, until the Wired_driver_29.4_x64 update. This installs version 4.1.260.0, according to the driver properties.

Device Manager in Windows 11 shows yellow triangles. There is no Internet. I tried the following:

- winsock reset

- int ip reset

- ipconfig /release -> /flushdns -> restart PC

- a full network reset under Advanced network settings.

No dice.

Win11 network diagnostics did not help either.

What did help was rolling my PC back to version 29.3. PC is running flawlessly again.

My system: Windows 11 Pro (23H2, OS build 22631.4460, Asus Z690 BIOS 4002)

Any suggestions what else I can try? Is this a bug in the driver? Let me know! Thanks.

[msryhajw]

I am having the exact same issue also on a Gigabyte X570 Auros Master with an AMD 3900X running Windows 11 

Reverting to the previous driver fixed the issue.

System Specs:

Gigabyte Technology Co., Ltd. X570 AORUS MASTER

Bios

Version

F39b

Date

2024-07-11

Motherboard

Manufacturer

Gigabyte Technology Co., Ltd.

Model

X570 AORUS MASTER

Version

Default string

Operating System

Edition

Microsoft Windows 11 Pro (64-bit)

Version (Build)

23H2 (10.0.22631)

Devices and drivers

Processor

AMD Ryzen 9 3900X 12-Core Processor

Graphics

NVIDIA GeForce RTX 2080 SUPER

Audio

Realtek High Definition Audio

USB Audio Device

NVIDIA Virtual Audio Device (Wave Extensible) (WDM)

NVIDIA High Definition Audio

USB Audio Device

Networking and I/O

OpenVPN Data Channel Offload

Realtek Gaming 2.5GbE Family Controller

VMware Virtual Ethernet Adapter for VMnet1

VMware Virtual Ethernet Adapter for VMnet8

Intel® Ethernet Converged Network Adapter X550-T2

Intel® Wi-Fi 6 AX200 160MHz

Intel® Ethernet Converged Network Adapter X550-T2 #2

NordLynx Tunnel

Intel® I211 Gigabit Network Connection

Bluetooth Device (Personal Area Network)

TAP-NordVPN Windows Adapter V9

Intel® Wireless Bluetooth®

Memory

64 GB

Storage

Sabrent Rocket 4.0 2TB

Samsung SSD 870 EVO 2TB

Samsung SSD 990 PRO 2TB

[Brotel]

Same problem here. Running 3 X550-T1/T2 cards along with some X710-T2L cards in multiple Win11 systems.

This new November driver broke them all.

i opened a support ticket about it and after a myriad of back and forth nonsense about taking pictures of the f/r of the cards, they started trying to help. But just suggesting trying all the stuff I already told them I had tried. They’ve pretty much ghosted me now though.

C’MON INTEL SUPPORT - FIX YOUR 24H2 10GBE DRIVER!

[Rico-77]

I have the T1 (single port) with the same issue, I finally just rolled back the drivers.

[Lu-Max]

I have the very same issue:

https://community.intel.com/t5/Ethernet-Products/X550-T2-Driver-4-1-260-0-not-compatible/m-p/1654401#M39773

[msryhajw]

No, total radio silence from Intel...

[Brotel]

Yep - total silence. I was having a daily back and forth with a support engineer on this. As soon as I referenced this forum thread and let him know this was happening to anybody with a 10GbE card, he completely ghosted me - even after me reaching out to him twice. Crazy.

[Lu-Max]

I just did an extended live chat with Intel Tech Support about this issue with this card. The agent said "Thank you for confirming the details. We will now create a new case and the required information will be shared to you via email."

I'll update this thread when I hear from them. Stay tuned.

[Brotel]

lol - good luck

[Brotel]

They fixed it!!

Check your Assistant for a new driver:

Version:
1.20.100.0
Release date:
January 7, 2025

It works on on X5xx and x7xx 10GbE cards.

THANK YOU INTEL.  Finally.

[Lu-Max]

It's not coming up when I check.

Link?

Also, is it for W11 x64? I am presently utilizing driver v4.1.254.0, 6-1-2024

Thanks.

[Brotel]

Sorry, this is for x7xx cards:

Version:
1.20.100.0
Release date:
January 7, 2025

I just tried to update my x550 cards using the new 29.5 driver download straight from intel's site and it successfully installs the version you posted.  

Also, I read they are deprecating the X550 single port cards with Server 2025 and Win11 24H2.  But that same document said they will continue supporting the X550-T2 cards.  The x710 cards basically replaced the x550 series cards and I'm moving on to those instead.

[Lu-Max]

Here is a link detailing my back-and-forth with Intel tech support and the steps I have taken to attempt the driver update:

https://community.intel.com/t5/Ethernet-Products/X550-T2-Driver-4-1-260-0-not-compatible/m-p/1656284#M39826

I will update again once I hear anything more.