Should I Enable 20 40 Mhz Coexistence [Netgear]?

If having a secure wireless connection is what you prefer, then finding a good router is mandatory. However, many users find it perplexing that Netgear enables 20-40MHZ coexistence.

If you are one of them, then don’t worry! In today’s post, we are going to tackle all of that. From what this coexistence means, why you require this, how you can resolve such issues to a full setup guide, we will provide you with all essential information.

What Is 20 40MHz Coexistence?

When it comes to using a Netgear router, make sure you understand the 20 40MHz coexistence. This gets enabled on its own, by default. Having the right settings will help you avoid all interferences with your connections.

Because of this, you will also get a proper wireless internet connection as well. However, the good part is that you as a user can disable this feature whenever you want which would result in proper support of the wireless connection.

Apart from this, you will also have to define these channels. Starting off, always remember that 40MHZ offers you maximum channel width. This could also mean that all dated hardware may not be able to provide you with access to the channel.

That’s also to say, if this feature is not enabled, you won’t be able to enable the 40MHz with the usual 2.4Ghz. Experts have also suggested that customers should either use the  20MHZ or 40MHZ coexistence with 20MHZ channels.

This is because 40MHZ can overlap your connection with the others, which could lead to performance issues as well.

Why Do We Need This?

Netgear routers usually have 20/40MHz enabled. This prevents all sorts of interference with a lot of wireless connections. 

However, customers also get the chance to disable settings if that’s what’s most convenient for them. This is also useful if you want to use wireless connections with maximum support.

In case you didn’t know, bandwidth also specifies the channel these broadcasting channels cover. 20MHZ is understood as a usual bandwidth. On the other hand, 40MHZ will have double-channel widths.

As a result of this, most 2.4GHz isn’t able to use such outdated hardware. So when you also enable 20 40MHz coexistence, you shall be able to use all bandwidths, whenever there’s a requirement.

How Can We Solve This Issue?

How To Enable & Disable?

The only time when people try to enable any feature is when they have disabled it before at some point. The reason behind this is that coexistence gets enabled on its own. 

What you require for 20/40MHZ coexistence

  • First, you need to launch your browsers using a tablet, computer or laptop. 
  • Log into a router by simply sharing your username and password.
  • Access your advanced tab using the router’s interface
  • After this, click on advanced setups.
  • Click on wireless settings next. 
  • Enable coexistence.
  • Before you log out, hit Apply to make sure all changes can easily be saved.


Whether you’d like to keep something activated or deactivated, the choice is yours. If you want to go with the other option, here’s a guide that will make things easy for you:

Launch the browsers on the device. Type in the search bar. This will allow you to access the router.

  1. Finish the login process by using your username and password.
  2. Next, go to Advanced settings & tap on it.
  3. Click on wireless settings next.

Always check if the box near ‘coexistence’ has been checked. If yes, you can click on it easily and clear your tick. 

Note: A few users have also pointed out they are unable to locate settings even after following all the rules and regulations. In cases like these, do click on the advance button, go to advance, and then wireless setup, and soon you’ll be able to find a different feature here.

As you must have understood from this post, a good  20/40 Mhz coexist feature will share with you a secure and versatile internet connection for all users. This happens to be one of the main reasons why such settings are enabled from before, by default.

It is also less likely that users would prefer to choose something else. However, you may also switch this off by simply following the guides that are shared above. This will help you achieve faster speed even with overlapping issues.

With that, we come to the end of the post about bandwidth coexistence. If there are any queries left, kindly share them with us in the comment section.

Do you have to enable 20/40 MHz coexistence in Netgear?

Latest wireless connections could also use 40Mhz on even 2.4GHz, that too comfortably. You should also be able to note that 40MHz with a maximum channel width could be allowed to function on any 2.4GHz.

For other legacy devices, make sure the 20/46mhz is easily enabled. This will allow previous devices to easily connect with the wifi.

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I am Steven S. Martin, the person behind HDMITechnologies. Personally, I run my tech hub in Texas and used almost thousands of devices for my hub for the last 15 years. I put all my experiences and knowledge to make your decision better and valuable.

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