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x17 R2, TB4 port running on limited feature
I have a Dell WD22TB4 dock connected to my Alienware x17 R2 TB4 port.
Dell Alienware Onscreen Display prompt with below warning:
A Dell Dock has been connected, some features are not supported by this system, please refer to the user manual for additional information.
When I checked with "Thunderbolt Control Center", I found no devices connected on TB port.
So I went to Windows 11 device manager, there's no Intel Thunderbolt Controller listed under "System Devices". My previous Dell laptop XPS 9560 has such device shown =
Further Google search led me to an interesting Reddit discussion
https://www.reddit.com/r/DellXPS/comments/w02hrv/xps_9520_thunderbolt/
It looks like the TB port is connected as USB 4 port and there's some issue on 12th Intel CPU. Just wanted to check if anyone else has notice the same issue?
2 people also have this problem
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Hi @RickyGao welcome to this free user-to-user Alienware laptop discussion forum.
12th Intel CPU (with driver?) should provide transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4. See Alienware x17 R2 Thunderbolt 4.0 port with Power Delivery and What Is Thunderbolt 4? - Intel
Please run Intel® Driver & Support Assistant to get driver and software updates. Thank you.
If problem persists, please visit your online Dell account to create Service Request so that Dell Support knows that there is a problem to fix. Dell Technical Support will request online session so that they can use their diagnostic tools to fix software problem and/or instigate replacement parts.
[This user does not work for Dell and volunteers their free time. Please remember to say thank you by clicking on my thumb up icon.]Hi Crimsom,
I understand my Alienware X17 R2 Thunderbolt 4 port can provide up to 40 Gbps.
I have all the latest updates applied on my system.
Apparently the TB4 port currently connecting to my WD22TB4 is running on some weird connection, at least it is not shown in Windows as thunderbolt port.
The reason why I'm saying it is weird is the physical connection seems has "OK" performance impact, since it can still support all below devices connected on WD22TB4
two 4K 60Hz monitor
Gigabyte NIC
Mouse & Keyboard
I would like to post it here to see if more people is having the same issue and raising Dell's awareness.
Limiting Factor
4 Posts
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Posted October 21st, 2022 12:00
Off topic.
My old (ish) machine was showing it's age, so I looked around for something new. X17 R2 caught my eyes (good looking, good specs, good price on Dell UK). After a rather disappointing phone call with sales I started to look into customer support received from Dell - Red flag already raised by sales - do they even want to sell the stuff? I think I will take my business (small as it is) elsewhere. Thank you for allowing me to vent my frustration on your forum.
Hi @RickyGao has Intel fixed their 'Thunderbolt Control Center' so that it now works on Windows 11 version 22H2?
[This user does not work for Dell and volunteers their free time. Please remember to say thank you by clicking on my thumb up icon.]Hi @RickyGao how about the Dock?
Support for Dell Thunderbolt Dock – WD22TB4 has released 19 Oct 2022 update Realtek USB GBE Ethernet Controller Driver version 1153.9.823.2022, A28. Realtek USB GBE Ethernet Controller Driver | Driver Details | Dell US
Driver version in Device Manager should now be Windows 11 - 1153.9.823.2022
Is the 'ThunderboltTM Software' version listed in Programs & Features?
[This user does not work for Dell and volunteers their free time. Please remember to say thank you by clicking on my thumb up icon.]

RickyGao
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Posted November 6th, 2022 22:00
After spoke to technical support, I am returning my X17 R2 since there's no resolution on it.