Here is the page posting that link https://www.tp-link.com/us/support/download/deco-w2400/#FAQs

In FAQ section of the W2400 page it even tells you how to change the wireless settings. https://www.tp-link.com/us/support/faq/1591/

Do not act like we are stupid. We both know you all updated the user guide after seeing this post. You did not update to well though. The user guide still shows we have options for WPS and Bandwidth...

No I mean I cannot turn off 2.4 ghz or 5 ghz radio signal, but it says I can in the manual. The manual also says I can check bandwidth from the Deco app, but there is no option in the app for it

I do not have all the options available on my app that are pictured in the User Guide. Especially the 2.4 and 5Ghz band control. Why not?