Tesla Powerwall configuration error

Just installed two new powerwall 3s and having similar issue trying to get this ha telsa integration to work. Using ip address of my master pw3 and last 5 of pwd from inside cover. Authentication step seems to be working. Getting server “returned 404 error”. This is the url the integration is attemping to resolve.

https://mypw3ip…/api/site_info

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Not to dig up an old thread but I have a powerwall 3 and am having the same issues. Fiddled around with it all evening with no luck aside from the password is for sure working, but the API integration appears broken. Would love some alternative or a path forward.

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I have the same error
Setting up address and tried both 5 last chat of password or serial number. It just son’work with message

A connection error occurred while connecting to the Powerwall: Powerwall is unreachable: Cannot connect to host 192.168.1.84:443 ssl:False [Connect call failed (‘192.168.1.84’, 443)]

See images also when I open the webpage of powerwall IP, nothing I can try to sign in and try

I have a gateway 1 and two powerwalls twos. I have reset the gateway using the reset button in the cover. It doesn’t seem to matter if I use the IP address of the wireless or wired network.
If I use the last five digits of the serial number I get :
Authentication failed with error: Access denied for resource https://192.16x.254.xx/api/login/Basic: default password not supported: Login Error

If i use the password for the general tesla portal logon i get:
Authentication failed with error: Access denied for resource https://192.16x.254.xx/api/login/Basic: bad credentials: Login Error

If I use a browser I get the Tesla One app to load.

I appreciate any help

thank you.

Hi Jim, try the last 5 characters of the password.
I had mentioned that the wording is misleading. It’s last 5 characters of the password (That’s what worked for me). Give it a try.

Bevan, I know im doing something silly. When you state last 5 characters of the password, you mean the last five characters of the serial number printed on the Gateway right? I have also tried the last 5 characters of the 5 characters of the password for the app. per tesla: “For Backup Gateway 1 and Non-Backup Gateway, your serial number (found in the Tesla app) is also the password.” They don’t work for me.
thanks jim

Hi Jim,
Looking back at my post in 2023:

Seeing you said you have a Gateway 1 and the last 5 characters of the serial number (per Tesla) doesn’t work, do you have a default password printed inside the Backup Gateway?
That’s what finally worked for me - not the default password printed inside the Backup Gateway, but just the last 5 characters of the default password printed inside the Backup Gateway.
Sorry I can’t be of more help…If you have changed the password maybe reset it back to the default password?

Hi everyone, I’m a new HA user and I’m trying to integrate my powerwall. Has anything changed recently? I absolutely can’t log in with the last five characters of the serial number STGxxxxxxxxxxxxxxxx8D) and I have no other passwords printed inside the gateway

Not sure if I can help you Paolo but came across this in earlier post and maybe it’ll help:

Hi I’m new to HA having just bought a HA Green. I have a Tesla Powerwall 3 and Gateway 2. HA didn’t automatically recognise my PW3 so I’ve tried to add it with no joy. I’ve tried 2 different IP addresses:
192.168.91.1
192.168.90.2
With the last 5 digits (serial numbers and passwords) of my:
Gateway
PW3
Tesla account
But no joy. Can anyone help?

Don’t quite understand why you’d use .90.1 and .91.2 but to find your PW’s IP address you should login to your router and see in the clients list what IP it assigned to the PW.

Used those because I don’t know what I’m doing! Thanks for telling me where to look, I really appreciate it. Powerwall not “named” on my router so I don’t know which IP address to use. Just going through unnamed ones to try them