PENDING TaskSequence not starting | unknown error

[zimon]

Dear community

I am struggling with a client that does PXE but won't actually initiate the TaskSequence.
It will stay at the background image of the custom boot image without anything happening.
From the following smsts.log I cannot figure out what might be the issue.
Do you have some ideas?

Environment
- Current branch (2203) with hotfix

Clients
- Lenovo (different editions) > all work fine
- VMware VM > works fine
- Lenovo T14 Gen2 > doesn't work

I made sure that
- network is available
- siteserver is pingable
- SMB (TCP 445) workS
- local disk is recognized

smsts.log
Attached file

Many thanks for your input
Simon

 

[Prajwal Desai]

Is this issue happening on that single client computer or others as well?.

 

[zimon]

We figured it out. Apparently it is related to Lenovo T14 Gen2 devices ethernet port.
If we attach an external 'USB-C to Ethernet' device we do PXE and the Task Sequence starts as expected.

Built-in Ethernet port does not work but the port is recognized and has an IP address.

Very weird...

 

[zimon]

Is this issue happening on that single client computer or others as well?.

actually on all (3) T14 Gen2 we currently have