I have a TP-LINK T3U Plus AC1300 USB Adapter. On Windows, it gave me around 180 Mbps download and 170 Mbps upload on 5Ghz. But on Ubuntu 23.04, the download speed on 5Ghz is only 12-16 Mbps, though the upload speed remains high at 160-170 Mbps. On 2.4Ghz, I get 20-35 Mbps download and 70 Mbps upload. My internet plan is 200Mbps, so I expect to get close to this speed. I believe this might be a driver issue. Does anyone know how to fix this?
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