Rt-ac3100 2.4GHZ wifi not working!!!!

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Thread Starter
Jan 16, 2017
at the tipping point right now. I am the landlord's son (my mother)
bought this $300 plus tax router and 2.4 ghz wifi entirely decides to not work most of the time.
restarted, rebooted, factory reset, downloaded other firmwares, NOTHING WORKS <edit>!
sent a ticket to asus online and so far no reply call center is permanently closed I am guessing.

I am never buying asus crap again.

I have tried to switch wifi password into wpa auto personal etc etc except wep there is no wep setting on this dam thing.
I am running out of options. cant return it to bestbuy and they wont accept the return
Last edited by a moderator:


Oct 2, 2003
i have edited the post
family friendly site

whats the exact model of the router?
I'm assuming its an ASUS make , as you mention trying to call them - is that correct ?

How old is it
The shop "best buy" would have a 1 year warranty, in the UK its the shop that you have the contract with NOT the manufacturer
I'm not sure of the consumer laws in your country

Why wont best buy accept a return

and 2.4 ghz wifi entirely decides to not work most of the time.
how do you know this - ??

Is it possible that the router is on auto channel , and allowed to switch from channels 1-14
BUT in the US you can only see 1-11

lets see an xirrus - let it run until the 2.4Ghz signal disappears on the chart - so we can see it missing
Run Xirrus Wi-Fi Inspector
Download and install

If you cannot access the internet with this PC
You will need to copy the program across to the faulty PC
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file to the faulty PC and install the program.
You will now need to take a screen shot and copy that back to the working PC and attach the screen shot in a reply on the forum here.
If you do not have another PC
Do you have a phone connected to the internet - can you photograph the result and post the image in a reply​

http://go.pardot.com/l/66982/2015-01-26/2361i - Version 1
https://www.xirrus.com/inspector/ Version 2
enter you details
This will Download the file " WiFiInspector-Setup-......."
( the site now appears to allow webbased emails like gmail, hotmail, outlook and yahoo to be used )

Alternative links - Use the links below
Do NOT use any of the download managers offered - Cnet , just use the direct link below - and click on the download button

Then run and install the program - on a wireless enabled PC/Laptop
if you get an error - You will need to have NET Framework installed for the WiFi Inspector to function.
Also available from Microsoft downloads here https://www.microsoft.com/net/download
Stand alone version of.net framework https://www.microsoft.com/en-us/download/details.aspx?id=49981
On windows 8 - (i do not have windows 8) but, it would appear that, When you first try to run, you may get a message that .net framework is needed, and included in that message is a link to download/install.

Run the program

A user guide is available under the HELP menu option

post a screen shot of the program running.
if there are a lot of networks showing can you click on "networks" top lefthand area - so we can see all the network information.

post which SSID name is yours, its located in the list, under network "Adapter Name" (1st column)

From the Version 1 user guide
For a reliable (or robust as the Xirrus user guide says) wireless connection you need a signal of about -70 dBm or better. "A desirable signal level for a robust Wi-Fi connection will be green".
note: the signal level is a negative number, so for example -88 is worst and -40 is better

From the Version 2 Guide
You will typically want at least one Wi-Fi network (SSID) in the 5GHz frequency or one in 2.4GHz at levels of -65dBm or higher in all areas where Wi-Fi is supported.

How to provide Screen Shot
To post a screen shot of the active window.

Vista or Windows 7
you can use the "snipping tool" which is found in Start> All programs> Accessories> Snipping Tool

Windows 8 & 10
you can use the snipping tool > Open Snipping Tool
(From the Windows 8 Start Screen, or windows 10 Search, type "snip" and press enter)
(From windows 10 - All Apps>Windows Accessories>Snipping Tool
>Press the Esc. key.
>go back to your Windows 8 start screen - Swipe from left or press Window Button
>Press Ctrl+PrntScr button to use Snipping Tool
see here

To upload the screen shot to the forum, bottom right of your post are some buttons ("Upload File" button) and then select the file you want to upload, click on "Open", and the file will be attached to the post.
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