X1C7 WiFi issue

WiFi can disconnect from time to time (in Linux). This is the most annoying problem with the X1C7. It vanishes for some days, before returning.

See reddit discussion; Looks to be this bug, though in 2021 I’m seeing more of the 0x707 bug.

As a workaround, I decided to use an external wifi card (AC600M USB WiFi Adapter) - but that also had its own connectivity problems from time to time.

Update (Sep 8,2021): This issue appears only on NixOS (as well as Ubuntu, and possibly several other distros), but not on Clear Linux.

Links to this page

Thinkpad X1 Carbon Gen 7 review

The only annoying issue with the Carbon is that the WiFi card included in my laptop experiences periodic disconnections on Linux. Others have reported the same. In the end, the problem vanished when I switched to Clear Linux.

X1C7 WiFi issue
Clear Linux

It performs better than NixOS as desktop experience on X1C7, thus improving on X1C7 - Moderate Performance. In addition, the system is much more reliable, such as there not being any X1C7 WiFi issue (or Thunderbolt issues) so far.
AC600M USB WiFi Adapter

Having gotten frustrated with the X1C7 WiFi issue, I decided to use an external USB WiFi adapter. Here is the specific adapter^* I purchased from Amazon. It does not work with Linux out of the box; however, the shipment came with a mini CD (with presumably the Windows driver) that had the code RTL8811/RTL8812 which hinted at the possible Linux driver to use.