Locating connectivity device information
This article includes
Each Mobile Link connectivity device has a unique serial number or MAC address (Media Access Control) used for account setup, generator registration, and troubleshooting with Generac support. These identifiers are also helpful when adding aftermarket Mobile Link devices or managing your home network. You can find this information on the physical label of the Mobile Link connectivity device, within the generator control panel menus (on some models), and on the physical Mobile Link device itself.
- MAC address: A unique hardware identifier used by virtually all network-connected hardware.
- MLG SSID: The broadcast SSID for an intermediary network that Mobile Link devices use during provisioning. See What Is the MLG Network?
- Device ID: An additional unique identifier that Generac uses for its Mobile Link devices.
Note: If you need to find the serial number for the generator itself, see Where Can I Find the Serial Number on My Air or Liquid-Cooled Standby Generator?
Environment
This article applies to Generac standby generators with the following Mobile Link connectivity devices:
- Connectivity Cellular Accessory
- Onboard Wi-Fi Device
- Wi-Fi/Ethernet Device
- 4G LTE Cellular Device
For up-to-date information about currently available Mobile Link connectivity devices and compatibility, see: Which Generator Controllers Are Compatible with Wi-Fi, Ethernet, or 4G LTE?
Locating the MAC address, MLG SSID, and connectivity device ID
The location and availability of the MAC address, MLG SSID (see What Is the MLG Network?), and connectivity device ID vary by generator model and the connectivity device in use.
Locating identifiers in the Mobile Link app
After connecting your generator to Wi-Fi or 4G LTE, view device details in the Mobile Link for Generators app; identifiers populate automatically in your account. For connection instructions, see:
Full Mobile Link account setup and device enrollment process.
Locating identifiers on generators with the Onboard Wi-Fi Device
Some Generac models come with factory-installed Onboard Wi-Fi devices (often Guardian-series models manufactured after 2018 featuring an Evolution controller). The MAC address is located behind the front generator panel on a Wi-Fi sticker positioned just above the generator serial number decal, attached to the inside wall of the unit to the left of the control panel on the black dividing wall.
For instructions on removing the front panel to access this information, see How do I remove the front panel on my home standby generator?

If no Wi-Fi or MAC address is listed in this location: Confirm the generator is a model compatible with Wi-Fi. See Which Generator Controllers Are Compatible with Wi-Fi, Ethernet, or 4G LTE? for more information.
This option is available on some air-cooled models manufactured after 2018 that have an Evolution controller.
To view this information: Navigate the screen to WIFI > arrow to SETUP SSID (6th option) to view the setup SSID; arrow to WIFI SSID (8th option) to view the home network SSID (if connected).
If there is no Wi-Fi menu in the controller: The generator may be too old, require a retrofit, or require a special setup process. See Why Am I Not Seeing A WIFI Menu on The Controller? and find this information on the connectivity device itself.
View MAC address, MLG SSID, and device ID on the physical devices
Use this option if the above options don't apply to your generator. This also applies to liquid-cooled generators that are compatible with Wi-Fi. Compatibility is often determined by the control panel used by your generator. See Which generator controllers are compatible with Wi-Fi or LTE cellular Mobile Link connectivity devices? for more information.
Connectivity Cellular Accessory
The serial number for the Connectivity Cellular Accessory is on the back of the device on a white sticker under a QR code. This serial number contains letters and numbers and is 9 digits long.



External Wi-Fi/Ethernet Device*
The serial number for the Wi-Fi/Ethernet device is on the bottom of the unit. It is toward the top-right of the decal and contains letters and numbers (10 digits). It can also be found on the product box.


4G LTE Cellular Device*
The serial number for the 4G LTE Cellular Device is on the bottom of the unit. It is toward the top-right of the decal and contains letters and numbers (10 digits). It can also be found on the product box.


*Discontinued Notice: The 4G/LTE Cellular Device and the Wi-Fi/Ethernet Device have been discontinued. Upgrading to the Connectivity Cellular Accessory is recommended for users who wish to add connectivity to their generator or for users experiencing ongoing connectivity issues. It is compatible with more generators and uses multiple carrier networks to offer greater coverage. Basic (free) and Premium cellular plans are available for users of this device. See here to upgrade: Connectivity Cellular Accessory.