@EagleHeart 

Hey

Ok so answering you queries in reverse order :)

This is purely packet loss over the WiFi on 2.4ghz frequency.., not anything to do with LAN, Internet or Printers so dont worry about that

The short answer is, personally i wouldn't get too hung up on the loss as its 2.4ghz and that is kinda expected.   The 2.4 spe3ctrum is very congested in 99% of scenarios and therefore floods massively, when this happens it causes interference which corrupts the data going over the air.  Once the AP receives the data, as its garbage it drops it and retries, which logs 1 error and 1 drop.  If the packet is salvageable in some way, its not dropped so logs just an error.

As said this is exceptionally common in 2.4ghz as the airspace is very congested, 5ghz you likely wont see that happen to the same level.   Bear in mind however that no WiFi is 100% efficient, there is always interferance and packet loss, generally 2-4% is normal for 5ghz, tad more (sub 10%) for 2.4ghz

You could try changing channels, but it may not help much.   If it aint causing you too many issues, I wouldnt get hung up on it.   Switch to 5ghz if possible and the issue will disappear