Router no longer able to be usable after messing with static leases

Installing and Using OpenWrt
1

Hello! Today I did something bad.
I was switching around the static leases I had for my devices and I most likely assigned the same IP address for two devices. After I pressed apply, the web interface didn't work anymore, and no device was able to connect to internet anymore.
It makes perfect sense for me to be honest, but something weird is that any device that connects to it actually can connect to the router through wifi, but it gets no IP address, and it also shows no gateway.

If I run ip a I only get this:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp45s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 7c:10:c9:91:28:52 brd ff:ff:ff:ff:ff:ff
3: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether f8:5e:a0:1c:50:fc brd ff:ff:ff:ff:ff:ff
    altname wlp0s20f3
    inet6 2a02:2f01:6506:9c00::30c/128 scope global noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fded:ff3:bd8a::30c/128 scope global noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fded:ff3:bd8a:0:96e8:8186:3895:1f1a/64 scope global temporary dynamic 
       valid_lft 604787sec preferred_lft 86369sec
    inet6 fded:ff3:bd8a:0:99a6:3224:7322:3ac3/64 scope global mngtmpaddr noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 2a02:2f01:6506:9c00:6089:672a:797f:916b/64 scope global temporary dynamic 
       valid_lft 604787sec preferred_lft 86369sec
    inet6 2a02:2f01:6506:9c00:2bff:226b:fdec:2b10/64 scope global mngtmpaddr noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fe80::447:feb7:fdd8:49fe/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

So, yeah, that pretty much shows that it has no gateway and it doesn't get any IP address. What seems weird to me is that devices are able to 'successfully' connect to the router even if it doesn't get any IP address

My router is a TP-Link Archer A7 v5. How can I access the router this way? I will also try pressing that reset button on it, but if it resets everything it'll be a bit unfortunate since I'd have to reconfigure other things too.

2

manually set an ip on your client in the LAN subnet of the router, try to connect again.

2 Likes
3

Thanks! After doing that I was able to solve the issue

EDIT: The command I used to manually set an IP address on Linux. Might work on other Unix-like OS-es

ifconfig yourinterfacename 192.168.1.5 netmask 255.255.255.0 up
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