Wi-Fi Trouble Shooting

If the charger is not connecting to the network ensure the following:

• Ensure network frequency is 2.4ghz.
• Ensure that signal strength is adequate.
• Ensure Wi-Fi Password is correct.
• Check if Network Filters/Firewalls are blocking charger communication

2.4 GHz band Wi-Fi Network:

Grizzl-E Smart only connects to a 2.4ghz Wi-Fi frequency. Ensure your network has a
dedicated 2.4ghz Wi-Fi band with its own SSID.

Before connecting Grizzl-E Smart, follow the directions to check if you have 2.4gHz or 5gHz Network

For Dual Band 2.4ghz/5ghz Routers do one of the following:

• Create a separate SSID for the 2.4ghz and 5ghz networks. For example, network_name_2.4G
  and network_name-5G.
• On Routers that have the ability, turn off the 5G band and connect to the 2.4ghz band.
• Install a 2.4ghz Wi-Fi extender with a separate extension network for the charger.

Signal Strength

Ensure a Wi-Fi signal strength of −67 dBm or greater where the charger is located (the closer to 0 the stronger the signal strength).
To check your location’s Wi-Fi signal strength:

1. Connect to the Grizzl-E Smart Wi-Fi Network. The network name is the serial number. Password is password. Stay on network even though there is no internet connection.
2. Open your web browser. Enter the IP address 192.168.4.1. to open the Wi-Fi configuration page.
3. Select the Show Available Networks button. The list of available networks will display.
4. Ensure the signal strength for the network is greater than -67dBm.

For locations that don’t have a sufficiently strong Wi-Fi signal, consider changes to improve
signal quality:

• The simplest solution is to move the Wi-Fi router as close to your EV charger as possible.
• Wi-Fi repeaters or extenders can boost the signal of existing access points.
• Multiple access points may be required to provide network coverage.

Password

Ensure the Wi-Fi Password entered matches the Wi-Fi network settings exactly. Grizzl-E Smart
will recycle the connection if password information is incorrect.

The password limit for the Grizzl-E Smart is 38 characters. Grizzl-E Smart will not connect to
Wi-Fi networks with passwords longer than this limit.

Network Filtering/Firewalls

Some firewalls may prevent or disrupt charger communications

• Check the blocked clients list in your router settings to see if a Network Filter is blocking the
• Grizzl-E Smart. Follow the directions for your router to access the list of blocked clients.
• Grizzl-E will appear on the client list as Expressif.