I have a powerline adapter (made in 2014) that hangs every other day if I let it operate in 802.11n (and it hangs every day if in mixed mode). Pinging it from m

I have a powerline adapter (made in 2014) that hangs every other day if I let it operate in 802.11n (and it hangs every day if in mixed mode). Pinging it from my Raspy mitigates but does not eliminate the problem. I even installed a wall switch in the wall plug so it would be easier to recycle! In the end, I had to put it in 802.11g mode to have a slower but dependable home network. There are 3 routers in the house, fortunately the others do work in 802.11n without needing a power cycle from time to time (the most stable is the one supplied by the cable company - that's really surprising). This is the scenario of consumer-grade WiFi - way less reliable than 10 years ago. When I replace the powerline by a blue cable, I can choose between buying a very expensive AP, or a 'modern' AP that freezes, or a WRT54GL that works.