Answer | NOTE: This article applies to the SURFboard Wi-Fi Cable Modems (G18, G20, G34, G36, G54, SBG10, SBG6950AC2, SBG7400AC2, SBG7580-AC, SBG7600AC2, SBG8300).
In some cases, wireless interference may occur when nearby wireless networks are broadcast on the same channel as the Gateway.  Changing the Wi-Fi channel in the Gateway may reduce wireless interference.  The Wi-Fi network is broadcasted on the 2.4GHz, 5GHz, and 6GHz bands simultaneously. By default. the Wi-Fi channel is set to Auto.  The auto channel on the Wi-Fi network automatically selects the best or least congested Wi-Fi channel after restarting the gateway. Gateways with Dynamic Channel Selection (DCS) feature change to the least congested Wi-Fi channel during operation and does not require a restart.
Before selecting the Wi-Fi network, check the Wi-Fi client that is experiencing interference to identify the Wi-Fi network being used by the device. The Wi-Fi client’s Internet connection will be interrupted when changing the Wi-Fi channel. This document describes changing the Wi-Fi channel using the SURFboard Central app.
Change the Wi-Fi Channel
- Tap the My Devices box on the Home screen.
 - Locate the Wi-Fi client(s) that is experiencing interference and identify the Wi-Fi band (2.4GHz, 6GHz, or 5GHz) that it's connected to.
 - Tap the My Network icon at the bottom of the screen.
 - Tap the Network Management box.
 - Tap the Network Settings + button to expand the card, and then tap the Wi-Fi Radio Settings link.
 - Tap the 6GHz, 5GHz, or 2.4Ghz Wi-Fi band.Â
NOTE:Â The 6GHz band is available on the supported device.
 - Tap the Channel drop-down menu link.
 - Select a recommended Wi-Fi channel for the selected Wi-Fi band, then tap the Select Value button.
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| Wi-Fi Band | Available Channels | Recommended Wi-Fi Channels | | 2.4GHz | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 | 1, 6, 11 | | 5GHz | 36, 40, 44, 48, 149, 153, 157, 161 | 36, 40, 44, 48 | | 6GHz | 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61, 65, 69, 73, 77, 81, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 129, 133, 137, 141, 145, 149, 153, 157, 161, 165, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209, 213, 217, 221, 225, 229, 233 | 37, 53, 69, 133, 149 |
 - Tap the Save Changes button.
 - The changes are taking effect.
NOTE: Wi-Fi clients will briefly disconnect and reconnect.
 - Wait for the gateway's LED to become solid and then tap the < back symbol.Â
 - Tap the Wi-Fi Radio Setting link and then tap the Wi-Fi radio band to confirm the Wi-Fi channel is updated in the Channel field.
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