Wallbox chargers require an internet connection to communicate with the Wallbox Cloud and enable all the smart features. Allowing the charger to communicate with our Cloud fully will ensure we provide the best user and support experience. Follow this guide to correctly set up your Wallbox units and ensure proper communication with the Wallbox Cloud.

This article primarily targets network administrators and people managing an on-site network. If you are a Wallbox charger owner and wish to connect your charger to your Wi-Fi, follow these articles: 
How to connect your charger to the Wi-Fi with the Wallbox app?
How to install the 4G dongle provided with the Copper SB kit?
How to install the 4G dongle provided with Commander 2 bundle?

1. General networking specifications

Find below the general networking specifications for the Wallbox chargers:

• Wallbox chargers do not support CA certificate installations.
• Wallbox chargers do not support Active Directory (AD) networks.
• Wallbox chargers do not support IPv6.

2. Wi-Fi specifications

Please go through the below specifications for Wallbox chargers’ Wi-Fi to ensure proper functioning:

• Wallbox products support networks with WPA2 authentication. WPA3 authentication is not supported. The charger can connect to networks that do not require a password, but only those that do not require further authentication (such as a login in a web portal).
• Wallbox recommends using a 2.4 GHz network for better range. Support for 5 GHz might not be available for some charger models.
• Wallbox products do not support band-switching or Fast Roaming.
• The Wi-Fi signal must be at least -75 dBm to ensure a stable connection.
• Both the network SSID and network password can be composed of up to 50 characters. The charger supports all ASCII-encoded characters in the SSID or password. Network SSIDs must not have trailing spaces.
• If no default IP address is assigned upon the first connection, it is not possible to configure a static IP address.
• Wallbox products support the following IEEE802.11 standards:

Product Model	Revision	WiFi Standard
Pulsar Plus	A, C, D	802.11 a/b/g/n/ac
Pulsar Plus	E	802.11 b/g/n
Pulsar Plus	F, G, H (and newer)	802.11a/b/g/n/ac
Copper SB	B, D, E, F	802.11 a/b/g/n/ac
Copper SB	G, H, I, J, K, L, M, N (and newer)	802.11a/b/g/n/ac
Commander 2	A, B, C	802.11 a/b/g/n/ac
Commander 2	D, E	802.11a/b/g/n/ac
Pulsar Max	All	802.11a/b/g/n/ac
Pulsar Pro	All	802.11a/b/g/n/ac
Pulsar Plus NA	A, B	802.11 a/b/g/n/ac
Pulsar Plus NA	C	802.11 b/g/n
Pulsar Plus NA	D	802.11 a/b/g/n/ac
Pulsar Plus e	All	802.11a/b/g/n/ac
Pulsar Pro NA	All	802.11a/b/g/n/ac
Pulsar Plus Socket	All	802.11a/b/g/n/ac

3. Mobile connectivity specifications

Some Wallbox chargers also support Mobile Connectivity. Some chargers such as Commander 2 and Copper SB require a USB dongle to enable Mobile Connectivity, while some such as Pulsar Pro have an integrated SIM module.

3.1. Mobile connectivity frequencies

• Wallbox chargers using a USB dongle accessory support the following frequency bands:
  • LTE B1/B3/B7/B8/B20/B28
  • 3G B1/B8
  • 2G 850/900/1800/1900
• Wallbox chargers with an integrated SIM module support the following frequency bands:
  • LTE-TDD B34/B38/B39/B40/B41
  • LTE-FDD B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/ B28/B66
  • UMTS/HSPA+ B1/B2/B4/B5/B6/B8/B19
  • GSM/GPRS/EDGE 850/900/1800/1900MHz

3.2. How to set up a Mobile connection with Wallbox SIM cards

When setting up the connection with Wallbox SIM cards, it is only required to fill in the APN field with the following APN:

• inetd.vfes

This can be configured using the Wallbox App and connected to the charger via Bluetooth. See more information on How to install the 4G dongle provided with the Copper SB kit? and How to install the 4G dongle provided with Commander 2 bundle?.

3.3. How to set up a Mobile connection with 3rd party SIM cards

Wallbox chargers can also be configured to use 3rd party SIM cards. These SIMs can also be configured using the Wallbox App and connected to the charger via Bluetooth.

In this case, the configuration will depend on the SIM provider. 

3.4. Factory pre-configured chargers

Additionally, chargers such as the Pulsar Pro may also come with a factory pre-configured Mobile connection. In this case, no setup at the moment of the installation is required, and the charger will automatically connect to the network after booting up the first time. If the charger is restored to factory settings, it will load again the factory configuration.

4. Network security

All communications between the Wallbox chargers and the cloud are encrypted. To properly interact with the charger via the Wallbox Cloud (including the Wallbox app, and the Wallbox portal, plus the rest of Wallbox solutions) and OCPP,  the chargers need to be connected to a network that allows the following connections:

These settings are usually not required in a home network. However, it is not uncommon for corporate networks to block some outbound traffic.

• HTTPS (TCP port 443): The latest versions of Wallbox software versions use exclusively HTTPS communication. The following domains are used for cloud communication and software updates:
  • *.wallbox.com
  • *.wall-box.com
  • *.wallboxapis.com
• HTTP (TCP port 80): Legacy Wallbox software versions (5.16.X and lower) use HTTP communications for some functionalities. In this case, to be able to upgrade to the latest version, it is required to allow HTTP traffic to the following domains:
  • *.wallbox.com
  • *.wall-box.com
  • *.wallboxapis.com

When the charger is restored to factory settings, the software rolls back to the manufacturing version, which might require an HTTP connection to work.

• NTP (UDP port 123):  When connected to the Cloud, Wallbox chargers may need to synchronize their internal real-time clock. This communication takes place via UDP port 123, and the servers used are time1.google.com, time2.google.com, time3.google.com, and time4.google.com. The server used for NTP is static, and it can’t be changed by the user.

4.1. Recommendations for managed networks

Many company customers have managed networks for security purposes. Find below some recommendations on how to set up Wallbox chargers in managed networks:

• Configure the network taking into account the General Specifications.
• Allow all the traffic listed above in Network Security.
• If this is not possible, we suggest the following options:
  • Create a separate network for the chargers.
    • Separate network router with Wi-Fi or Ethernet for chargers
    • 4G router with Wi-Fi or Ethernet for chargers
    • 4G dongles for chargers that support them
  • Configure a VLAN in your network, ensuring that traffic to the chargers is separate from traffic to the rest of the company.

5. Troubleshooting

I cannot connect the charger to my router’s Wi-Fi

• Make sure your Wi-Fi network’s settings follow the Wi-Fi Specifications and the General Network Specifications.

My charger is connected to the Wi-Fi but appears offline in Wallbox app/Portal

• Make sure the network has whitelisted the endpoints and ports in Network Security.
• Connect to the charger via Bluetooth using the Wallbox app and ensure it has an assigned valid IP address.

My charger is connected to the Wi-Fi but gets disconnected frequently

• Keep the charger updated as newer software versions improve software stability and connectivity.
• Review the Wi-Fi Specifications, some network features like band-switching or Fast Roaming can cause network issues.
• Make sure that the network has whitelisted the endpoints and ports in Network Security.

My charger appears online, but I am unable to update it

• Make sure that the network has whitelisted the endpoints and ports in Network Security.