T460 touchpad responds liked when the Ethernet cable is plugged

Hello

I bought a brand new ThinkPad T460 ten days ago and I noticed that when I plug in an Ethernet cable, the touchpad responds: just a few clicks and taps are missed, the movement is slow and and sometimes temporarily blocked. The touchpad comes alive again as soon as the Ethernet cable is disconnected. The trackpoint and trackpoint button above the touchpad are not affected, only the touchpad starts to misbehave.

This happens on both Windows and Linux, this isn't a problem of specific operating system. Furthermore, I checked to see if I am running the latest version of the BIOS, and I am. And there are no problems when you use the wireless adapter, but one of the reasons why I bought a ThinkPad was she has a port Ethernet, so not being able to use it would be extremely disappointing.

I checked to see if there are any IRQ conflicts for the touchpad, but could find none. The problem occurs when the computer is plugged in and when it runs on battery only. I also tried two different cables in the same router, each in a different router port, and the problem persisted.

I'm using the latest drivers for Windows 7 directly on the Lenovo site, and Arch Linux with kernel 4.4.5 - the Ethernet card is considered:

e1000e [2.751703]: Intel® PRO/1000 3.2.6 - k network driver
e1000e [2.751705]: Copyright (c) Intel Corporation 1999-2015.

Should I expect it is fixed with a BIOS update, or do I have to contact guarantee? It is unacceptable to live with it.

Tried in another House as promised, and the touchpad works very well with cable Ethernet is plugged. Also, before you leave the House with the problem, I discovered that the problem occurs only when the cable from my ISP switch is plugged into my router.

Respect my opinion that this machine deserves a stronger touchpad, but apparently is not due to lack of computer - under normal circumstances, there is no problem with the touchpad.

I'm stumped on how to proceed. Can I use a multimeter on the ISP switch from cable, but I'm not sure what to check (voltage? how does and between what son?). I'll also look into the suggestion of ferrite, I don't know where they are available - this thread is first heard of them.

Anyway, I wanted to just erase Lenovo name on it.

Tags: ThinkPad Notebooks

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