Not to operate under OpenELEC as Access Point

With the TL-WN821N v4 TP-Link is switched to the cheaper Realtek chipset RTL8192CU.
This works contrary to the previous Atheros chipset AR9002U-2NG under OpenELEC not as an access point (in Thethered mode). My search in this regard continues.

In normal wireless mode, it works! Harmless, but is then no better than all the other adapter with Realtek chipset and it then too expensive.
For completeness, here is the relevant excerpt from LSUB -vvv:
idVendor 0x0bda Realtek Semiconductor Corp.
idProduct 0x8178 RTL8192CU 802.11n wireless adapter
bcdDevice 2:00
iManufacturer 1 802.11n
iProduct 2 USB WLAN