Wi-Fi answers
Ohme EV charger — weak wi-fi in one room
Why does my Ohme EV charger weak Wi-Fi in one room?
The short answer
Charger loses Wi-Fi and misses the cheap overnight rate. On the WiFiXpert Compatibility Index the Ohme EV charger scores 60/100, and its weakest check is "Works on 5 GHz" — which is exactly where this problem comes from. The faster band would never reach outside anyway.
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 | Not supported | 4/14 |
| Modern Wi-Fi security | Good | 9/12 |
| Happy on mesh Wi-Fi | Fair | 10/16 |
| Works on a guest network | Poor | 3/8 |
| Survives a plug-in extender | Issues possible | 4/8 |
| Doesn't depend on chatty discovery | Low dependency | 10/16 |
| Easy to fix when it goes wrong | Fiddly | 6/12 |
The short answer
- Charger loses Wi-Fi and misses the cheap overnight rate.
What our compatibility data shows
- Works on 2.4 GHz: Excellent
- Works on 5 GHz: Not supported
- Modern Wi-Fi security: Good
- Happy on mesh Wi-Fi: Fair
- Works on a guest network: Poor
- Survives a plug-in extender: Issues possible
- Doesn't depend on chatty discovery: Low dependency
- Easy to fix when it goes wrong: Fiddly
Free fixes, in order
- Stand at the charger with your phone and check how strong the Wi-Fi is there.
- Move the router towards that side of the house, higher up.
- Many chargers can use mobile data as a backup — check that it's switched on.
- A mesh box in the garage or nearest inside wall is the reliable fix.
Before you spend anything
- One mesh box on the garage side, once you've confirmed the signal there is genuinely weak.
People also ask
- Does the Ohme EV charger work on mesh Wi-Fi?
- Can I put the Ohme EV charger on a guest network?
- Does the Ohme EV charger need 2.4 GHz?
- Which router works best with the Ohme EV charger?
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