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RT-AC86U 2.4Ghz Can't Connect

Discussion in 'ASUS AC Routers & Adapters' started by JustinB181, Dec 6, 2018 at 2:38 PM.

  1. JustinB181

    JustinB181 New Around Here

    Joined:
    Thursday
    Messages:
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    I just setup a new RT-AC86U, initial setup everything was working including the 2.4Ghz band. I left for a few hours come home and update the firmware to the newest ASUS firmware (kicking myself for this) and now the 2.4Ghz band is not connecting. I can see the band, everything looks correct in the set up.

    I have done all the recommendations i found on the forum such as disabling Beamforming, setting to 20hz, channel 6...

    I can see the 2.4 SSID as well as the 5Ghz (which is working perfectly). When trying to connect to the 2.4 ssid it says that the network key is incorrect from a pc, or invalid password from other devices.

    I have flashed numerous different firmware versions including a few of merlins. I always did the factory reset or initialize after each flash and reset up the router.

    Is there anything I am missing or should I just send it back for another one???
     
    Last edited: Dec 6, 2018 at 2:49 PM
  2. Grisu

    Grisu Very Senior Member

    Joined:
    Aug 28, 2014
    Messages:
    1,336
    Change to a new simple SSID and set to open Wifi mode only for testing.
    Delete connections on PC and make a completely new connection.
     
    ApexRon likes this.
  3. JustinB181

    JustinB181 New Around Here

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    Well, it is an issue with the 2.4 band. Opening it up, it still will not connect to the 2.4 band. Seems to be a hardware issue, but its coincidental that it occurred a little after updating the firmware.
     
  4. Grisu

    Grisu Very Senior Member

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    Just bad luck, return it ...
     
  5. JustinB181

    JustinB181 New Around Here

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    Ok thanks, I figured it was defective. I just wanted confirmation that I didn't do anything stupid before i go through the return/ Asus warranty process.
     
  6. lighting

    lighting Occasional Visitor

    Joined:
    Mar 21, 2014
    Messages:
    38
    I had an identical problem with a client's RT-AC86U, unfortunately after the close of the Amazon return period. Clients usually can't connect at all, occasionally seem to connect but then can't access anything, just on the 2.4 GHz. I tried factory resets and changed firmware between ASUS and Merlin, ran it with three different client devices and in two different locations. I'm now locked inside ASUS Customer Service Hell, with daily emails (each with a new case number), and instructions to run yet more diagnostic tests to try and show that the problem isn't with their hardware. If I was being paid by the hour this would have already exceeded the cost of a new router -- I'm eating it because I recommended this router to the client. I assume at some point they'll relent and have me send it back, hopefully to have the problem resolved over a matter of just a few weeks and not costing me too much more time... Does Netgear have better service when their hardware is faulty?
     
  7. Kas

    Kas New Around Here

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    I'm also getting the same problem. I got the router last week. WiFi seemed to be working well till 2 days ago. I came home to find all the devices using 2.4ghz are no longer connecting to the router and I can't even see the network when I scan on my phone. 5ghz ones were fine. Tried rebooting the router without success. I finally fixed the problem when I factory reset the router. I came home again today and nothing is connected. That's twice in three days. I'm not sure if this is software or hardware related as I only got the router last week and the router forced you to update to the lastest firmware at the setup stage. Would it be wise to send this back as I'm within my 30 day return period?
     
  8. Kas

    Kas New Around Here

    Joined:
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    Just reset the router and 2.4GHZ no longer works. Tried it with stock and merlin firmware. I'll be sending this back to amazon for a replacement. Seems like the 2.4ghz radio has failed. I have read a few more posts about this problem . I hope it's not a common fault :(
     
    Last edited: Dec 7, 2018 at 6:58 PM