How to Find the Best Wireless (Wi-Fi) Channel for Your Router and switch to it.

WiFi Channel

If you click the Wi-Fi icon in the system tray which is in the bottom right of your desktop (in Windows) and you’ll see your network listed, along with those of neighbors.

Each network broadcasts on specific channels, and if you and your neighbors are on the same channel, your devices and router will have more difficulty figuring out which data is which and experience a lot of interference with the networks. This could slow your speeds, so it is better to choose a channel with fewer people on it. By doing this you are reducing the interference of a particular channel and you can find which one is best for you in the locality.  

After understanding the technical details of wireless channels their effect on speed, the question arises is:

How to choose the best wireless channel in Windows.

The free app WiFi Analyzer for Windows scans the adjacent networks and shows which channels are busiest in the locality, displaying this information in the form of graphs.
You can see the picture below that the most congested spot on the 2.4GHz waveband in my location is channel 1.

Best wireless channel for router.

After find the best and least congested channel for you in location, open your router’s settings, click through to the wireless options and manually change the channel on which your router broadcasts.

You can do the same settings for 5GHz waveband also, although as 5GHz signals don’t travel as far as 2.4GHz signals, congestion is less common on 5GHz networks.

When setting the channel, keep in mind that what you’re actually setting here is the signal’s center point. Your network will spill over on to neighboring channels. To avoid overlap interference from the nearby networks, therefore, it’s advisable to only use channels 1, 6, or 11, because these are the only channel that doesn’t overlap with each other.  

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