Comment 22 for bug 1846016

So I happened to kick a box containing a Ubuntu-certified HP EliteDesk 800 G3 DM that has the same AC 3168 wireless adapter and had some experiments on it.

For the iwlwifi error messages part, it should not affect system boot, and the internet connectivity is not affected, either. Some time between v5.2.17 to v5.3-rc1, this regression was introduced, and there is still no upstream fix currently at v5.4-rc1. The root cause should probably be:

  * 0c3d7282233c iwlwifi: Add support for SAR South Korea limitation

which introduced a new command CMD GEO_TX_POWER_LIMIT.

It seems this is a duplicate of upstream bug https://bugzilla.kernel.org/show_bug.cgi?id=204151, which has proposed a solution https://patchwork.kernel.org/patch/11158395/ but not yet accepted.