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
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.
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
Did anyone find a solution for this? I just had a powerwall 3 installed and can’t login either.
Hello, same issue here. Were you ever able to add integration for your Tesla Powerwall? I keep failing when asking for IP and Password (it doesn’t seem to be the last of the serial #).
Update - I was able to get it working by using the Tesla Custom Integration HACS Ad-on Integration. All good.
Interesting! I have ended up paying for Teslemetry which works fine but it’s like £2 a month. I may give your way a go.
Been using Powerwall3/Gateway 2 since last October, but just got my HA Green in the past few days. First trying to get Tesla integration in place.
No joy in getting (any) password accepted, found this thread and thought my problems were over, but no such luck.
Inside of gateway door has a sticker with :
(P) NNNNNNN-NN-X
(S) XXXNNNNNXNNXXX
Where N is a digit, X is alphabetic
I’m assuming (P) is password, but what about the hyphens ? So I tried with and without hyphens, also last 5 of the other number which I assume is serial number, also last 5 of Powerwall serial from Tesla app, and for good measure the password I use for the Tesla app (last 5 chars and also in full). Always fails same way with “bad credentials”.
Powerwall is wired ethernet at 192.168.1.173 (which I assume is what it asked for itself as it’s not in sequence with anything else). Home Assistant had failed to detect it automatically.
When I go to that address with a browser bitdefender tells me “don’t go there”. When I insist I get “404, doesn’t exist”. So why is something on my own network identified as dangerous by bitdefender ? And it must exist because the Tesla app works just fine.
Should I have logged out of the Tesla app ? Can’t the Powerwall talk and walk at the same time ?
Bump. Anything working these day? new PW3 with built in GW. No idea how to get this to work, tried everything above.
I found this github thread: 2026.7 says integration with Tesla Powerwall 3 is supported but still does not accept credentials · Issue #175371 · home-assistant/core · GitHub
From which I extract this quote “The password is not in the gateway it’s in the actual unit” (this opinion supported by one other contributor). i.e. take the glass front off the powerwall to find the password. Should be easy enough (with care) - but I didn’t get around to it yet because there’s too much else going on at the moment. Of course you should ask an electrician to do this as there is live stuff behind, or maybe the electrician who installed it was savvy enough to take a photo when the front was off ?
But also (following the links there ) I found (but can’t find again) the suggestion from a developer that the idea that Tesla integration is supported at all should be removed from the Home Assistant app. But it hasn’t been. Not helpful !
I’ve signed up for the fleet API. This is the only thing that Tesla customer service can point me to.
