GL-MT300N-V2: Lost http and ssh interface even after device reset - Technical Support for Routers

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with device GL-MT300N-V2
after flashing original openwrt fw openwrt-22.03.5-ramips-mt76x8-glinet_gl-mt300n-v2-squashfs-sysupgrade.bin and after closing myself off interface
How to revert to gl-inet firmware?

Already tried:
Reset to factory with 10 seconds reset button

Reset button while power on until green leds switched on, Uboot flashing Debrick via Uboot - GL.iNet Router Docs 3 with various new and old gl firmwre versions, like:
lede-mt300n-v2-2.26.bin
openwrt-mt300n-v2-3.105.bin
openwrt-mt300n-v2-3.216-0321-1679391429.bin

Soft factory reset at serial console with and without failsafe mode:
firstboot -y && reboot

JFFS2 reset at serial console:
umount /overlay && jffs2reset && reboot

F2Fs reset at serial console:
dd if=/dev/zero of=/dev/loop0 bs=1M; reboot

I can log in to wifi and get IP address 192.168.8.x but can’t access http interface on 192.168.8.1 nor ssh interface
The same using wired lan: i get an IP address but can’t access http interface
I can only access serial console.
What can be done?
Thanks in advance!

root@GL-MT300N-V2:/# netstat -l -n -t tcp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 0.0.0.0:139             0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:83              0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN
tcp        0      0 192.168.8.1:53          0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:445             0.0.0.0:*               LISTEN
tcp        0      0 :::139                  :::*                    LISTEN
tcp        0      0 ::1:53                  :::*                    LISTEN
tcp        0      0 xxxx::xxxx:xxxx:xxxx:xxxx:xx :::*                    LISTEN 
tcp        0      0 :::22                   :::*                    LISTEN
tcp        0      0 :::445                  :::*                    LISTEN
(ipv6 address masked)
root@GL-MT300N-V2:/# uci show network
network.loopback=interface
network.loopback.ifname='lo'
network.loopback.proto='static'
network.loopback.ipaddr='127.0.0.1'
network.loopback.netmask='255.0.0.0'
network.globals=globals
network.globals.ula_prefix='xxxx:xxxx:xxxx::/48'
network.lan=interface
network.lan.type='bridge'
network.lan.ifname='eth0.1'
network.lan.proto='static'
network.lan.netmask='255.255.255.0'
network.lan.ip6assign='60'
network.lan.hostname='GL-MT300N-V2-xxx'
network.lan.ipaddr='192.168.8.1'
network.wan=interface
network.wan.ifname='eth0.2'
network.wan.proto='dhcp'
network.wan.hostname='GL-MT300N-V2-xxx'
network.wan_dev=device
network.wan_dev.name='eth0.2'
network.wan_dev.macaddr='x:x:x:x:x:x'
network.wan6=interface
network.wan6.ifname='eth0.2'
network.wan6.proto='dhcpv6'
network.wan6.disabled='1'
network.@switch[0]=switch
network.@switch[0].name='switch0'
network.@switch[0].reset='1'
network.@switch[0].enable_vlan='1'
network.@switch_vlan[0]=switch_vlan
network.@switch_vlan[0].device='switch0'
network.@switch_vlan[0].vlan='1'
network.@switch_vlan[0].ports='1 6t'
network.@switch_vlan[1]=switch_vlan
network.@switch_vlan[1].device='switch0'
network.@switch_vlan[1].vlan='2'
network.@switch_vlan[1].ports='0 6t'
network.guest=interface
network.guest.ifname='guest'
network.guest.type='bridge'
network.guest.proto='static'
network.guest.ipaddr='192.168.9.1'
network.guest.netmask='255.255.255.0'
network.guest.ip6assign='60'
(masked MAC address and wifi SSID)
root@GL-MT300N-V2:/# uci show firewall
firewall.@defaults[0]=defaults
firewall.@defaults[0].syn_flood='1'
firewall.@defaults[0].input='ACCEPT'
firewall.@defaults[0].output='ACCEPT'
firewall.@defaults[0].forward='REJECT'
firewall.@zone[0]=zone
firewall.@zone[0].name='lan'
firewall.@zone[0].network='lan'
firewall.@zone[0].input='ACCEPT'
firewall.@zone[0].output='ACCEPT'
firewall.@zone[0].forward='ACCEPT'
firewall.@zone[1]=zone
firewall.@zone[1].name='wan'
firewall.@zone[1].network='wan' 'wan6'
firewall.@zone[1].input='REJECT'
firewall.@zone[1].output='ACCEPT'
firewall.@zone[1].forward='REJECT'
firewall.@zone[1].masq='1'
firewall.@zone[1].mtu_fix='1'
firewall.@forwarding[0]=forwarding
firewall.@forwarding[0].src='lan'
firewall.@forwarding[0].dest='wan'
firewall.@rule[0]=rule
firewall.@rule[0].name='Allow-DHCP-Renew'
firewall.@rule[0].src='wan'
firewall.@rule[0].proto='udp'
firewall.@rule[0].dest_port='68'
firewall.@rule[0].target='ACCEPT'
firewall.@rule[0].family='ipv4'
firewall.@rule[1]=rule
firewall.@rule[1].name='Allow-Ping'
firewall.@rule[1].src='wan'
firewall.@rule[1].proto='icmp'
firewall.@rule[1].icmp_type='echo-request'
firewall.@rule[1].family='ipv4'
firewall.@rule[1].target='ACCEPT'
firewall.@rule[2]=rule
firewall.@rule[2].name='Allow-IGMP'
firewall.@rule[2].src='wan'
firewall.@rule[2].proto='igmp'
firewall.@rule[2].family='ipv4'
firewall.@rule[2].target='ACCEPT'
firewall.@rule[3]=rule
firewall.@rule[3].name='Allow-DHCPv6'
firewall.@rule[3].src='wan'
firewall.@rule[3].proto='udp'
firewall.@rule[3].src_ip='fc00::/6'
firewall.@rule[3].dest_ip='fc00::/6'
firewall.@rule[3].dest_port='546'
firewall.@rule[3].family='ipv6'
firewall.@rule[3].target='ACCEPT'
firewall.@rule[4]=rule
firewall.@rule[4].name='Allow-MLD'
firewall.@rule[4].src='wan'
firewall.@rule[4].proto='icmp'
firewall.@rule[4].src_ip='fe80::/10'
firewall.@rule[4].icmp_type='130/0' '131/0' '132/0' '143/0'
firewall.@rule[4].family='ipv6'
firewall.@rule[4].target='ACCEPT'
firewall.@rule[5]=rule
firewall.@rule[5].name='Allow-ICMPv6-Input'
firewall.@rule[5].src='wan'
firewall.@rule[5].proto='icmp'
firewall.@rule[5].icmp_type='echo-request' 'echo-reply' 'destination-unreachable' 'packet-too-big' 'time-exceeded' 'bad-header' 'unknown-header-type' 'router-solicitation' 'neighbour-solicitation' 'router-advertisement' 'neighbour-advertisement'
firewall.@rule[5].limit='1000/sec'
firewall.@rule[5].family='ipv6'
firewall.@rule[5].target='ACCEPT'
firewall.@rule[6]=rule
firewall.@rule[6].name='Allow-ICMPv6-Forward'
firewall.@rule[6].src='wan'
firewall.@rule[6].dest='*'
firewall.@rule[6].proto='icmp'
firewall.@rule[6].icmp_type='echo-request' 'echo-reply' 'destination-unreachable' 'packet-too-big' 'time-exceeded' 'bad-header' 'unknown-header-type'
firewall.@rule[6].limit='1000/sec'
firewall.@rule[6].family='ipv6'
firewall.@rule[6].target='ACCEPT'
firewall.@rule[7]=rule
firewall.@rule[7].name='Allow-IPSec-ESP'
firewall.@rule[7].src='wan'
firewall.@rule[7].dest='lan'
firewall.@rule[7].proto='esp'
firewall.@rule[7].target='ACCEPT'
firewall.@rule[8]=rule
firewall.@rule[8].name='Allow-ISAKMP'
firewall.@rule[8].src='wan'
firewall.@rule[8].dest='lan'
firewall.@rule[8].dest_port='500'
firewall.@rule[8].proto='udp'
firewall.@rule[8].target='ACCEPT'
firewall.@include[0]=include
firewall.@include[0].path='/etc/firewall.user'
firewall.@include[0].reload='1'
firewall.gls2s=include
firewall.gls2s.type='script'
firewall.gls2s.path='/var/etc/gls2s.include'
firewall.gls2s.reload='1'
firewall.glfw=include
firewall.glfw.type='script'
firewall.glfw.path='/usr/bin/glfw.sh'
firewall.glfw.reload='1'
firewall.glqos=include
firewall.glqos.type='script'
firewall.glqos.path='/usr/sbin/glqos.sh'
firewall.glqos.reload='1'
firewall.guestzone=zone
firewall.guestzone.name='guestzone'
firewall.guestzone.network='guest'
firewall.guestzone.forward='REJECT'
firewall.guestzone.output='ACCEPT'
firewall.guestzone.input='REJECT'
firewall.guestzone_fwd=forwarding
firewall.guestzone_fwd.src='guestzone'
firewall.guestzone_fwd.dest='wan'
firewall.guestzone_dhcp=rule
firewall.guestzone_dhcp.name='guestzone_DHCP'
firewall.guestzone_dhcp.src='guestzone'
firewall.guestzone_dhcp.target='ACCEPT'
firewall.guestzone_dhcp.proto='udp'
firewall.guestzone_dhcp.dest_port='67-68'
firewall.guestzone_dns=rule
firewall.guestzone_dns.name='guestzone_DNS'
firewall.guestzone_dns.src='guestzone'
firewall.guestzone_dns.target='ACCEPT'
firewall.guestzone_dns.proto='tcp udp'
firewall.guestzone_dns.dest_port='53'
firewall.sambasharewan=rule
firewall.sambasharewan.src='wan'
firewall.sambasharewan.dest_port='137 138 139 445'
firewall.sambasharewan.dest_proto='tcpudp'
firewall.sambasharewan.target='DROP'
firewall.sambasharelan=rule
firewall.sambasharelan.src='lan'
firewall.sambasharelan.dest_port='137 138 139 445'
firewall.sambasharelan.dest_proto='tcpudp'
firewall.sambasharelan.target='ACCEPT'
I even tried to disable firewall, all to no avail:
root@GL-MT300N-V2:/# /etc/init.d/firewall stop
Warning: Section @zone[1] (wan) cannot resolve device of network 'wan6'
Warning: Option 'sambasharewan'.dest_proto is unknown
Warning: Section 'sambasharewan' does not specify a protocol, assuming TCP+UDP
Warning: Option 'sambasharelan'.dest_proto is unknown
Warning: Section 'sambasharelan' does not specify a protocol, assuming TCP+UDP
 * Flushing IPv4 filter table
 * Flushing IPv4 nat table
 * Flushing IPv4 mangle table
 * Flushing IPv6 filter table
 * Flushing IPv6 mangle table
 * Flushing conntrack table ...
 root@GL-MT300N-V2:/#
Reset button while power on until green leds switched on, Uboot flashing Debrick via Uboot - GL.iNet Router Docs 3  with various new and old gl firmwre versions, like:

lede-mt300n-v2-2.26.bin

openwrt-mt300n-v2-3.105.bin

openwrt-mt300n-v2-3.216-0321-1679391429.bin
This is a correct way to restore glinet firmware.
Soft factory reset at serial console with and without failsafe mode:

firstboot -y && reboot
JFFS2 reset at serial console:

umount /overlay && jffs2reset && reboot
F2Fs reset at serial console:

dd if=/dev/zero of=/dev/loop0 bs=1M; reboot
These steps are not required
              But after uboot debrick (mentioned versions) I can access only serial terminal, not http interface nor ssh, so I suppose restore isn’t complete.

How to restore default configuration also?

Can I have gl reference network and firewall config for one of mentioned versions?
(Idk if it’s relevant: in past device history I have tried extroot with last gl fw beta version and it worked, after that I installed openwrt original fw and it worked, after that closed myself off interface and debricked with uboot, uploaded gl fw).
              Solved, was a routing problem not in gl but in my PC and smartphone.

On windows I had to disable Tailscale subnet option.

On Android fixed by itself i don’t know how.