Archer c6u disconnecting client

Mon Dec 19 14:34:30 2022 daemon.info hostapd: wlan0: STA d4:11:a3:d1:66:9f IEEE 802.11: authenticated
Mon Dec 19 14:34:30 2022 daemon.info hostapd: wlan0: STA d4:11:a3:d1:66:9f IEEE 802.11: associated (aid 2)
Mon Dec 19 14:34:30 2022 daemon.notice hostapd: wlan0: AP-STA-CONNECTED d4:11:a3:d1:66:9f
Mon Dec 19 14:34:30 2022 daemon.info hostapd: wlan0: STA d4:11:a3:d1:66:9f RADIUS: starting accounting session 0BD5FA38B918CFE3
Mon Dec 19 14:34:30 2022 daemon.info hostapd: wlan0: STA d4:11:a3:d1:66:9f WPA: pairwise key handshake completed (RSN)
Mon Dec 19 14:34:30 2022 daemon.notice hostapd: wlan0: EAPOL-4WAY-HS-COMPLETED d4:11:a3:d1:66:9f```
This is repeating in around hour or two but yesterday i got 12h without disconnecting on pc .
How can i fix this? (If you can pls say me