iPhone disconnect Mikrotik routeren

Kedves Mindenki!

Mikrotik router-ral kapcsolatban szeretnek egy kis segitseget kerni. Otthoni hasznalatban van egy 951G-2Hnd tipusu Miktorik Router,
RouterOS: 6.42.6
Routerboard 6.42.6

A problema a kovetkezo:
a router folyamatosan ledobal a wifi-rol egy iPhone 6-os (iOS 11.4.1) mobiltelefont. A wifi alapbeallitasokkal uzemel, csak jelszot alitottam hozza. A dhcp lease time is standard 10 perc.

A logokbol a kovetkezo olvashato ki:

6 Aug/01/2018 10:43:03 wireless,info 58:E2:8F:C2:57:78@wlan1: connected, signal strength -92
7 Aug/01/2018 10:43:06 wireless,info 58:E2:8F:C2:57:78@wlan1: disconnected, received disassoc: sending station leaving (8)
8 Aug/01/2018 10:44:11 wireless,info 58:E2:8F:C2:57:78@wlan1: connected, signal strength -65
9 Aug/01/2018 10:44:17 dhcp,info defconf assigned 192.168.88.253 to 58:E2:8F:C2:57:78
10 Aug/01/2018 10:51:44 wireless,info 58:E2:8F:C2:57:78@wlan1: disconnected, received disassoc: sending station leaving (8)
11 Aug/01/2018 11:01:04 dhcp,info defconf deassigned 192.168.88.253 from 58:E2:8F:C2:57:78
12 Aug/01/2018 11:01:30 wireless,info 58:E2:8F:C2:57:78@wlan1: connected, signal strength -57
13 Aug/01/2018 11:01:36 dhcp,info defconf assigned 192.168.88.253 to 58:E2:8F:C2:57:78
14 Aug/01/2018 11:07:30 wireless,info 58:E2:8F:C2:57:78@wlan1: disconnected, received disassoc: sending station leaving (8)
15 Aug/01/2018 11:08:27 wireless,info 58:E2:8F:C2:57:78@wlan1: connected, signal strength -56
16 Aug/01/2018 11:16:43 wireless,info 58:E2:8F:C2:57:78@wlan1: disconnected, received disassoc: sending station leaving (8)
17 Aug/01/2018 11:18:57 wireless,info 58:E2:8F:C2:57:78@wlan1: connected, signal strength -65
18 Aug/01/2018 11:27:52 wireless,info 58:E2:8F:C2:57:78@wlan1: disconnected, received disassoc: sending station leaving (8)
19 Aug/01/2018 11:37:46 dhcp,info defconf deassigned 192.168.88.253 from 58:E2:8F:C2:57:78
20 Aug/01/2018 11:38:07 wireless,info 58:E2:8F:C2:57:78@wlan1: connected, signal strength -65
21 Aug/01/2018 11:38:13 dhcp,info defconf assigned 192.168.88.253 to 58:E2:8F:C2:57:78
22 Aug/01/2018 11:47:03 wireless,info 58:E2:8F:C2:57:78@wlan1: disconnected, received disassoc: sending station leaving (8)

Amit eddig probaltam
-router frissites, ujrainditas
-iPhone hard reset
-wifi halozat elfelejtese az iPhone-on
-halozati beallitasok visszaallitasa az iPhone-on
-wifi asszisztens ki- es bekapcsolasa az iPhone-on
Eddig semmi nem jott be.

https://www.aboutcher.co.uk/2012/07/linux-wifi-deauthenticated-reason-c…
A fenti link szerint a 8-s kód a kovetkezot jelenti:
8 Disassociated because sending STA is leaving (or has left) BSS
De ez engem nem vitt kozelebb a megoldashoz.

https://www.nirsoft.net/utils/wifi_information_view.html
A sajat routeremen kival csak egy volt, ami a 4-es csatornat hasznalta, ennyi zavar szerintem meg belefer, de ha jobb otlet nem jon, majd vegigprobalgatom a wifi csatornakat.

==================================================
SSID : MikroTik-AC5251
MAC Address : 64-D1-54-AC-52-51
PHY Type : 802.11g/n
RSSI : -47
Signal Quality : 87
Average Signal Quality: 87.4
Frequency : 2,427
Channel : 4
Information Size : 414
Elements Count : 15
Company : Routerboard.com
Router Model : RB951G-2HnD
Router Name : MikroTik
Security : WPA2-PSK
Cipher : CCMP
Maximum Speed : 300 Mbps
Channel Width : 40 MHz
Channels Range : 2 - 10
BSS Type : Infrastructure
WPS Support : Configured
First Detection : 2018. 08. 01. 19:33:53
Last Detection : 2018. 08. 01. 19:35:04
Detection Count : 69
Start Time : 2018. 08. 01. 19:35:03
Minimum Signal Quality: 87
Maximum Signal Quality: 90
802.11 Standards : 802.11i
Connected : No
Stations Count :
Channel Utilization:
Country Code :
Description :
==================================================

Koszonet imnden segitsegert!