Devices stopped connecting to 2.4

[Plutochris]

Hi

My Eeero router has suddenly stopped operating on the 2.4Ghz WiFi

Devices can connect to the 5Ghz channel OK, but not the devices that can only use 2.4Ghz
Have power recycled the router but still same.

[KeithFrench]

Do not worry about interpreting the results, I will do that for you. I will send a PM to you that contains a link for a guide of mine on Wi-Fi interference. It is quite long (about 30 pages), but you will probably only need to look at three or four pages in total. Initially look at the section called "Are you suffering from interference – prove it first". This is the first link in the table of contents. This section includes full details of free Wi-Fi analysers that I recommend for Windows, Windows phone, Android and Apple operating systems. However, I have no way of testing the Apple product. Select the analyser of your choice & my guide explains how to use it.

If you are using Wi-Fi Scanner, then please attach the zip file to this thread. As soon as I have downloaded it, I will remove the attachment from your post, to preserve your privacy.

With all other analysers, please follow my instructions below.

Collect the screenshots that I require and include them in your reply.

Please post the screenshots to me in a PM (to protect your privacy), which I have requested in my guide. No photos please as they can be difficult to read, because the text can get out of focus when zoomed in. Please ensure that the analyser window is maximised (if Windows) before taking the screenshots & upload them via the "Insert Photos" button (in a mobile browser it's the picture icon) on the post editor's toolbar with the Size parameter set to Large.

[KeithFrench]

Hi @Plutochris 

Thanks for the statistics that you have sent me. One of your eeros does seem to be busier than the other, which means that your devices may not detect that eero due to WiFi interference.

Slow speed, intermittent dropouts, breaks in the signal or no signal on some or all devices or no internet access might be caused by Wi-Fi interference from other local networks, which can also lead to a permanent reduction in speed. No ISP can be responsible for your local environment, this is mainly a byproduct of the popularity of Wi-Fi.

Generally speaking, the 2.4GHz band suffers a lot more from interference than the much faster 5GHz band, but the 2.4GHz one can sometimes have a better range, but this all depends on your local area.

In other words, I try to help you optimise your Wi-Fi connection. The next stage involves sending out a guide to you to help you get me some important diagnostic results so that I can analyse them for you and recommend changes to your router configuration to solve them.

I only send this out to people who request it.

Whilst the eero is supposed to manage Wi-Fi interference, if this is very bad, particularly in the 2.4GHz band, then it cannot do anything about it, no router can. The same goes for any router at that point. Other things that may then need to be investigated are its location within your property and the WiFi bands that you use. It is possible that you may also need to purchase additional eero nodes as it is supposed to operate as part of a mesh system. I can help with any of this. However, I would suggest that you follow my help to find out what the root cause of the problem is, before throwing money at it.

[KeithFrench]

I have not seen a fault like this with eeros. In the app, please tap the appropriate eero mesh node (Gateway or Extenders) that your device is connected to or is trying to connect to. Then:-

1. Tap on that eero’s Wi-Fi Radio analytics page. 
2. Tap on 2.4GHz near the top.
3. Please send me a screenshot of the statistical information displayed near the bottom of the page?