Wi-Fi answers
Tesla Powerwall — wi-fi keeps dropping
Why does my Tesla Powerwall keeps dropping?
The short answer
App stops showing today's solar and battery figures after a router change. On the WiFiXpert Compatibility Index the Tesla Powerwall scores 70/100, and its weakest check is "Easy to fix when it goes wrong" — which is exactly where this problem comes from. Changing the Wi-Fi usually means the installer's setup screen.
We publish what breaks with each router and mesh system, and the setting that fixes it.
| Check | Verdict | Points |
|---|---|---|
| Works on 2.4 GHz | Excellent | 14/14 |
| Works on 5 GHz | Supported | 10/14 |
| Modern Wi-Fi security | Good | 10/12 |
| Happy on mesh Wi-Fi | Good | 12/16 |
| Works on a guest network | Poor | 4/8 |
| Survives a plug-in extender | Usually fine | 5/8 |
| Doesn't depend on chatty discovery | Low dependency | 10/16 |
| Easy to fix when it goes wrong | Fiddly | 5/12 |
The short answer
- App stops showing today's solar and battery figures after a router change.
What our compatibility data shows
- Works on 2.4 GHz: Excellent
- Works on 5 GHz: Supported
- Modern Wi-Fi security: Good
- Happy on mesh Wi-Fi: Good
- Works on a guest network: Poor
- Survives a plug-in extender: Usually fine
- Doesn't depend on chatty discovery: Low dependency
- Easy to fix when it goes wrong: Fiddly
Free fixes, in order
- Keep the same Wi-Fi name and password when you replace a router — nothing then needs re-setting.
- Check the signal where the unit is fitted with your phone.
- A mesh box in the garage or utility room is the usual permanent fix.
Before you spend anything
- One mesh box near the install, only after checking the signal there.
People also ask
- Does the Tesla Powerwall work on mesh Wi-Fi?
- Can I put the Tesla Powerwall on a guest network?
- Does the Tesla Powerwall need 2.4 GHz?
- Which router works best with the Tesla Powerwall?
If you do end up spending money
Only after the free fixes. Nobody pays to appear here, and no shop link changes anything we say.
- Router or mesh known to suit this device
- A single wired connection to the device