Why Your EV Charger Keeps Reconnecting to WiFi and Whether It Is a Problem

But one of the most common issues homeowners report is their EV charger repeatedly disconnecting and reconnecting from WiFi.
This problem can be annoying, especially when it interrupts charging schedules. But a reconnecting charger does not always mean something is wrong. In many cases it is simply reacting to normal conditions inside the home.

Here is everything you need to know about EV charger WiFi issues in Hertford, why they happen and when to contact an electrician.

Your Router May Be Too Far from the Charger

The number one cause of EV charger WiFi issues is router distance. If the signal coming from inside the property is too weak, the charger simply disconnects. Outdoor chargers in Hertford often struggle with this, especially if the router is upstairs or behind thick walls.

Your charger does not need extremely high bandwidth, but it does need a stable connection. A WiFi extender in the hallway or a mesh booster near the charger usually solves the issue immediately.

Home Interference Can Cause Frequent Reconnection

Many homeowners are surprised to learn that devices such as microwaves, baby monitors, cordless phones, alarms and even thick insulation can interfere with WiFi signals. When interference spikes, your EV charger may briefly lose connection and reconnect moments later.

This is normal behaviour. The charger reconnects so it can sync schedules, track usage and run updates. An electrician can help identify interference sources and recommend placement adjustments.

Your Charger May Be Receiving Software Updates

Smart chargers constantly evolve. Manufacturers roll out updates to improve safety, tariffs, compatibility and performance. During an update, the charger may temporarily disconnect. Once the update completes, it reconnects automatically. 

Hertford homeowners often notice this at night when the charger is preparing for off peak charging periods.

Your Energy Tariff May Require Regular Communication

If you use a smart energy tariff, your charger needs to communicate more frequently with the supplier. This can cause momentary reconnections. These are harmless and indicate the charger is working as intended.

Your Router Settings May Be Limiting the Charger

Some routers assign devices temporary IP addresses. When this refreshes, the device must reconnect. You may also have:

• Firewall restrictions.
• Guest networks.
• Automatic channel switching.

Any of these can cause occasional drops in connection. A quick router settings check usually resolves this.

Your EV Charger May Use Load Balancing Features

Many Hertford homes have load management enabled. When the system detects high usage from ovens, heaters or multiple appliances, it may pause or slow charging. During this process, some chargers briefly drop WiFi before reconnecting.

This is not a fault. It is a safety strategy to protect your home electrical supply.

When WiFi Drops Become a Real Problem

Your EV charger needs attention if:

• Charging schedules fail frequently.
• The charger app does not sync.
• Charging stops completely.
• Your charger drops offline for hours.

In these cases, there may be wiring issues, power supply instability or a fault inside the charger. An approved electrician can test the installation and confirm whether the charger or the home setup is causing the instability.

When to Contact an EV Electrician in Hertford

If your charger reconnects occasionally, it is usually normal. But if you see repeated drops or the charger fails to start charging, an electrician should assess the installation. They will test the power supply, wiring, earthing and WiFi signal strength to ensure the system is safe and operating correctly.

A smart charger should make your life easier. If WiFi problems are getting in the way, the solution is usually straightforward and inexpensive.

For EV charger inspections, repairs or new installations in Hertford, we are here to help.

📞 Call JJB Electrical on 01992 276121 to book your EV charger assessment today.