Every x minutes kicked from wifi


I'm running OpenWrt on my Linksys router and since some days I have the problem, that I get kicked off the wifi every 10, 20 minutes and that it's running very unstable for long time. But that I get kicked off the wifi is only for some days now - even if I didn't change anything. I restarted the router several times, but no change. I'm only able to test wifi on my win 10 laptop.

Here some further information/configuration:

OpenWrt: OpenWrt 18.06.4 r7808-ef686b7292 / LuCI openwrt-18.06 branch (git-19.170.32094-4d6d8bc)
Router: Linksys Viper (E4200v2 / EA4500)

My network file looks like

config interface 'lan'
	option type 'bridge'
	option ifname 'eth0.1'
	option proto 'static'
	option netmask ''
	option ip6assign '60'
	option ipaddr ''
	option gateway ''

The different gateway ip looks perhaps a little weird, but the router is running behind the cable modem of my provider and I don't want to use anything of the modem (wifi, dhcp,...) except the modem.

My wireless file looks like

config wifi-device 'radio0'
	option type 'mac80211'
	option hwmode '11g'
	option path 'mbus@f1000000/mbus@f1000000:pcie@82000000/pci0000:00/0000:00:01.0/0000:01:00.0'
	option legacy_rates '1'
	option country 'DE'
	option noscan '1'
	option htmode 'HT40'
	option channel '11'
	option txpower '10'

config wifi-iface
	option device 'radio0'
	option mode 'ap'
	option ssid 'MY_WIFI'
	option network 'lan'
	option encryption 'psk2+ccmp'
	option key '??????????????????????????????????????????'

If you need additional info - I still have some more wifis running, but this is my main one. Others are for IOT devices, e.g. and one for 5 GHz, but for this the distance is not too big.

Thanks and kind regards,


Bridging the LAN into another router at the least you now have two conflicting DHCP servers on the network.

The default setup of a WAN network and firewall is based on not trusting anything past the WAN port, including the cable modem.

Hello mk24,

thank you. The modem has nothing running except the modem functionality. There's no dhcp or wifi or anything else running on the modem. I deactivated everything. And as I said, it was not that unstable (it was not perfect, but much more stable) as it is since some days now.

Kind regards,