Answer | In some cases, wireless interference may occur when nearby wireless networks are broadcasted on the same channel as the SBG7400AC2. Changing the Wi-Fi channel in the SBG7400AC2 may reduce wireless interference. The SBG7400AC2 broadcasts two Wi-Fi networks simultaneously, one is broadcast on 2.4 GHz and the other on 5 GHz band. The default channel is Auto for both the 2.4 GHz and 5 GHz Wi-Fi networks. The auto channel on the Wi-Fi network automatically selects the best or least congested Wi-Fi channel after restarting the SBG7400AC2.
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. Then use the Active Access Points tool (located in the SBG7400AC2 Web Manager) to scan nearby access points occupied Wi-Fi channels. The tool is used to identify the least used Wi-Fi channel, then select the appropriate Wi-Fi network and change the channel. The Wi-Fi client's Internet connection will be interrupted when changing the Wi-Fi channel. Â
This document describes changing the Wi-Fi channel on the 2.4 GHz or 5 GHz network.Â
Changing the Wi-Fi ChannelÂ
- Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter http://192.168.0.1 into the address box, and press the Enter key.  The Login page will appear.
NOTE: A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager. There is no risk in proceeding to the Web Manager. For instructions to by-pass the alert screen, refer to article #Â 18181 - Alert Message for Web Manager Access.
 - On the Login page, enter admin in the User Name field.
 - Enter password or a customized password in the Password field.
NOTE: When using the default password to login, it may be required to set a unique password to proceed to the Web Manager. For assistance with Web Manager Access, refer to article # 18345 – SBG7400AC2: Web Manager Access.
 - Click the Apply button.  The System Basic Setup page will appear.
 - On the System Basic Setup page, determine if the Wi-Fi client experiencing interference is connected to the Wireless 2.4 GHz or Wireless 5 GHz (SSID) by verifying the Wi-Fi Connection Status on the client.Â
  - Once the SSID is determined click the More Wireless Settings... link under the appropriate Wireless 2.4 GHz or Wireless 5 GHz section.  The System Basic Setup page will appear.​
Change the Channel for the Wireless 2.4 GHz
- On the left-hand menu, click the Active Access Points link. The Active Access Points page will appear.
 - Click the Scan button. On the Warning pop-up window, click the OK button.
 - Checkmark the box for Show as table.Â
NOTE: In the example below, channel 11 is highly congested and channel 1 is moderately congested. The best available channel is 3 or the channels not in use.
 - On the left-hand menu, click the Basic link. The System Basic Setup page will appear.
 - Click the Channel drop-down menu to select a channel.  The Current channel is not displayed in this unit.
NOTE 1: It is recommended to leave the Channel default setting at Auto and restart the SBG7400AC2.  The best Wi-Fi channel will be selected upon restart.  Keep in mind that the connected Wi-Fi clients temporary lose Internet connection when the SBG7400AC2 is restarting.
NOTE 2: When choosing to set the Wi-Fi channel, it is recommended to set the channel to 1, 6 or 11 for better performance and stability because they do not overlap.  Other Wi-Fi channels overlap and degrade performance.Â
NOTE 3:Â Wi-Fi clients will briefly disconnect and reconnect.
 - Click the Apply button.  The System Basic Setup page will refresh.Â
Change the Channel for the Wireless 5 GHz
- On the left-hand menu, click the Active Access Points link. The Active Access Points page will appear.
 - Click the Scan button. On the Warning pop-up window click the OK button.
 - Checkmark the box for Show as table.
NOTE: In the example below, channels 36 & 40 are highly congested and channels 157 & 161 are moderately congested.  The best available channels are 108 & 112 or the channels not in use.
 - On the left-hand menu click the Basic link. The System Basic Setup page will appear.
 - Click the Channel drop-down menu to select a channel.  The Current channel is not displayed in this unit.
NOTE 1: It is recommended to leave the Channel setting at Auto and restart the SBG7400AC2.  The best Wi-Fi channel will be selected upon restart.  Keep in mind that the connected Wi-Fi clients temporary lose Internet connection when the SBG7400AC2 is restarting.
NOTE 2:Â Wi-Fi clients will briefly disconnect and reconnect.
 - Click the Apply button.  The System Basic Setup page will refresh.Â
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