ASUSWRT Device Tracker no longer working after new router install

I just ran up against an issue as noted in the title and wanted to post the solution here in case anyone has this problem in the future.

Just a couple of days ago I decided to try to update my home wifi with a mesh system. Seeing as I already had an ASUS router I figured I would stick with that brand. So I bought a new faster router and installed it as my main router re-using the original router IP address and using my original main router as a mesh node.

Today I noticed my device trackers weren’t updating. Looking in the HA log I kept seeing something to effect of “SSH error. no connection to the host” (I wish I would have thought to copy it down before I fixed the problem).

I could log in with putty just fine so I figured it had to be something with HA.

After searching around it dawned on me that I could console into the docker container running HA and see if I could SSH into the router from there.

I ran “ssh -l finity 192.168.1.1” and got an error saying I couldn’t log in because there was a change in the host key. The error message gave me the command to use to delete the old key:

ssh_keygen -f “/root/.ssh/known_hosts”-R 192.168.1.1

Once I did that and restarted HA then everything started working again.

Phew!

Hope this helps someone.

Glad you solved the problem and wrote this up for future reference!

But could you do one more thing (something people on this forum seem to forget all the time, or maybe just don’t know about)? I.e., please click on the option to mark your post as the solution. That way the title will show up in the list with a checked box icon, indicating the problem was solved. Thanks! :slight_smile:

I bought a new Linksys router. i am trying to install my Linksys EA6350 router to my computer, but it wont configure it. i make all the connection right still not able to connect it. than i visit Linksys Support and found solution on it.

The solution tick box isn’t displayed on my post. I assume that since it’s the first post the forum software thinks it can’t also be the solution too.

Feel free to tick the box for me tho. :grinning:

lol! I suppose that makes sense. FYI, only the OP can tick one of these boxes – like you did (on the follow-up post.) :slight_smile: In any case, thanks!