If you have this goodlooking router and your raspberry pi is somewhat unreliable (drops packets, keys over ssh take a while to appear, pihole takes forever to reply dns request), eth power saving is your problem.
Run this ethtool --set-eee eth0 eee off and your problems will go away.
I’ve spent AGES debugging why my pi 4 was so unreliable compared to my pi 3 until I stumbled upon this github issue. Looks like that router and the pi 4 don’t like each other.
Just wanted to share this solution. It drove me crazy since I got my new pi.
submitted by /u/Frosty-Improvement
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