My parents' TV kept buffering over Wi-Fi, so I was called to take a look. They pay for a 100 Mbps plan, which should be more than enough for streaming Netflix and Disney+. I ran a quick speed test, and the Wi-Fi only managed about 22 Mbps.
MakeUseOf
Your router still speaks a 2003 security protocol, and it's capping your Wi-Fi at 54Mbps
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