DIR-2660 admin ssh unstable through wifi (22.03 rc6)

Installing and Using OpenWrt
1

Hi, I'm having problems logging into the DIR-2660 via ssh when connected via wifi. No problems when connected via cable (lan1-4). I have three DIR-2660 and they show the same behaviour. Sometimes it is not possible to connect and sometimes the connection is just lost after logging in. There are no problems using luci on wifi or cable.

I'm using 22.03 rc6.

Set up as a dumb ap, services dnsmasq, firewall, and odhcpd have been turned off.

cat /etc/config/network

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option packet_steering '1'
        option ula_prefix 'fdf2:aa01:a40d::/48'

config device
        option name 'br-lan'
        option type 'bridge'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        list ports 'lan4'

cat /etc/config/wireless

config wifi-device 'radio0'
        option type 'mac80211'
        option path '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
        option channel '1'
        option band '2g'
        option htmode 'HT20'
        option disabled '1'

config wifi-device 'radio1'
        option type 'mac80211'
        option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
        option band '5g'
        option htmode 'VHT80'
        option channel '48'
        option cell_density '0'

config wifi-iface 'wifinet0'
        option device 'radio1'
        option mode 'ap'
        option ssid 'xxx'
        option encryption 'psk2'
        option dtim_period '3'
        option key 'xxx'
        option ieee80211r '1'
        option mobility_domain '7F17'
        option ft_over_ds '0'
        option ft_psk_generate_local '1'
        option network 'lan'

config wifi-iface 'wifinet2'
        option device 'radio1'
        option mode 'ap'
        option ssid 'xxx'
        option encryption 'psk2'
        option key 'xxx'
        option network 'lan'

cat /etc/config/dropbear

config dropbear
        option Port '22'
        option Interface 'lan'
        option PasswordAuth 'off'
        option RootPasswordAuth 'off'
2

Sounds like the problem reported here: SSH stops working on Belkin RT3200/Linksys E8450 with -rc6

Happens also on wifi, like in your case: SSH stops working on Belkin RT3200/Linksys E8450 with -rc6 - #15 by richb-hanover-priv

1 Like
3

Thanks - it certainly does - apparently my search-fu are weak these days.

4

@klok I did more testing: does restarting the LAN interface (using LuCI) restore ssh access over Wi-Fi?

5

I have see this with another MT7621/MT7615 Device "EA8100"
weirdly enough changing the "Enable SYN-flood protection"
under Firewall>General Settings
changes the behavior of the wifi
more in the way the wifi goes dead & needs a reconnect tho
but may change something here as well

6

@richb-hanover-priv Yes it does restore the access

7

@richb-hanover-priv Just to follow up it has been running stable now for almost 2 hours running htop.

8

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