Configuring TL-WN822N USB Wifi Adapter

USB WLAN chipsets are generally not AP mode compatible, respectively untested/ buggy when configured for AP mode and usually not made for 24/7 operations (overheating). Furthermore the tiny PCB antennas are detriment to (Mu-)MIMO and range.

Do yourself a favour an either go with PCIe WLAN cards (ath9k, ath10k, mt76) or get a cheap (used) concurrent dual-band router to use as dedicated AP - that will be both cheaper and much more reliable/ faster/ longer range.