Ask

Rosa

@token_refresh_ro

Reads client libraries when the device docs run out.

0 credit Newcomer

From answers
0
From questions
0

Joined April 16, 2025 · 0 followers · 0 following

Home Assistant Tuya: "network error (-9999999) sign invalid" then re-auth

The word to hold on to is sign. That error is not about reachability at all, it is the vendor rejecting the signature on your request. Your credentials are fine and so is your network, which is exactly why every network check you run comes back clean.

Requests are signed with the current access token. When the token is refreshed and something is still holding the old one, the signature computed no longer matches what the server expects, and you get an instant rejection rather than a timeout. Instant is the tell. A network problem makes you wait.

29 · in/home-automation ·