Example: Your router’s wireless performance may be affected by interference from other nearby routers. You can change the wireless channel to one which has less interference.Step 1: Open an Internet browser (such as Internet Explorer) and enter or into the address bar. Press Enter.Step 2: Enter the password for your Admin account in the field provided. If you have not changed this password from the default, leave the field blank. Click Log In.Step 3: Move the cursor to the Settings tab and then click Wireless from the drop-down menu.Step 4: Click Advanced Settings for the band you wish to change the wireless channel for. Select a channel from the Wi-Fi Channel drop-down menu. The mode selection process is the same for the 2.4 GHz and 5 GHz bands, however the options available for each band are different.2.4 GHz Band:5 GHz Band:Step 5: Click Save to save your configuration.Note: In most cases, you only need to change the channel on the router.
Most wireless adapters will automatically detect the channel used by your wireless network.
We all know that a Wi-Fi network can be shared by many channels depending on the bandwidth. If you have your own Wi-Fi at home, your neighbors can easily steal Internet access from you, if you do not have a password on your Wi-Fi. Paying your Internet connection bill while others enjoy the same benefits for free because your network is not protected is a bit unfair. Also, with too many desktops or laptops using your network, your connection speed may slow down.Here's how to change your Wi-Fi channel number (not applicable for Macs):.
Click Start on your desktop, then choose Run. A dialog box will appear, then type in 'cmd.exe.' . After that, you will see a command line interface. There, type the phrase 'ipconfig.' . Upon entering the phrase, a lot of data will appear in the window.
Ignore it, and just scroll down until you see 'Default Gateway.' Beside that statement you will see numbers. 192.680.765.035) Copy those numbers. Now, open your Internet Explorer and type the numbers you copied previously in the area where you usually type in the web address, and press the Enter key.

After that, you will be asked for a username and password. Your username and password will vary, so check your router's manufacturer website to confirm the information. Upon entering your username and password, you will see a window that is much like a website. Look for 'Wireless Settings' and click it. You will see a variety of channels and you can now choose from.
After changing the settings according to your preference, save the changes you have made.Here's how to do it on a Mac:. Open your System Preferences Panel, then choose Network. After clicking Network, choose Airport from the bottom drop-down menu. After that, click the TCP / IP tab. Just like on other computers, copy the numbers (ex. 192.680.765.035), which will be found beside the word 'Router' on the window.
After that, follow the same instructions above for PCs.Changing your Wi-Fi channel number may vary from one router to another. But most of the procedures are basic, and these will be the ones you would use in most cases. If you have any trouble, check the website of your router manufacturer.

This should be basic knowledge for everyone who uses routers, so you can easily fix your router and network problems. Remember that the main purpose of having channel numbers is to secure your network and to make sure that no one steals from your network, and to avoid interference, unless you want to share your network with others.