Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A

Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-07 07:09:41 - last edited 3 weeks ago
Model :

Hardware Version :

Firmware Version :

ISP :

C5400 when I have the problem I am not able to see the 2.4 wifi in any of the devices. Channel shows as N/A in web interface and I don't have any problem with the 5 Ghz wifi. Only way to get the 2.4 back is by restarting the router. It will work for a couple of days and then the 2.4 disappears from the SSid list

I have set a fixed channel for 2.4. Smart connect is off. Any suggestion to get the 2.4 to work reliably.
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1 Accepted Solution
Re:Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A-Solution
2019-02-27 00:56:22 - last edited 3 weeks ago

@kukblue 

 

We would recommend first making sure the router is up to date on its Frimware.  After that a Hard reset of the router.  Lastly we would recommned enabling Smart Connect.  Once smart connect is active you will only have a single SSID for devices to connect to.  At this point we would want to see if your 2.4GHz devices are staying connected or not.  If this all fails to resolve the issue it is likely the radio is bad and a replacement will be needed again.

 

Best Regards 

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#125
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128 Replies
Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-07 15:42:59
Is your firmware the latest one? You can email tplink support for further analyze.
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-07 21:35:40
yes, the firmware is the latest. I got a replacement from Amazon and the new one also the same. Before C5400 I have a netgear router and it didn't have any problem with 2.4.
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-08 14:10:32
Hmm, my C5400 has no the issue currently. It seems to be a bug. You may tried to reset the router. If this can't help, email tp-link support to feedback this bug. Hope a new firmware can fix this issue. Finger Crossed.
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-08 22:09:39
I have around 20 2.4 devices. It might be 1 or 2 rogue devices that might be causing the issues

I raised a ticket with the support and waiting to hear from them. I will keep the thread updated on the resolution in case anyone has this problem.
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-09 02:28:23

harshakavuri wrote

I have around 20 2.4 devices. It might be 1 or 2 rogue devices that might be causing the issues

I raised a ticket with the support and waiting to hear from them. I will keep the thread updated on the resolution in case anyone has this problem.



call on the toll free number
844-718-3989 Time 8:00 am to 6:00 pm (CST)
Ask for Jack Frose as me and get your issue fixed mam
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#6
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-09 02:33:40
Having a similar issue where I can see the 2.4 GHz network but it has not internet connection. I reset everything back to factory settings and it is still intermittent along with no longer being able to see my 5G_1 channel but the 5G_2 channel is available and working properly.
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-11 05:51:54
Update: I have a few Dlink Wifi switches (DSP-W110) and when I remove them from the network, the 2.4 seems stable and going strong for more than 2 days.

when I connect them to netgear wifi extender the 2.4 network on netgear seems stable as well. I am having these switches for couple of years and didn't face any problem until now.
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-08-17 23:21:07
Had a remote Teamviewer session with the Tech support. submitted them the logs and waiting for a resolution.
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#9
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Same Issue
2017-09-05 10:07:55
I have the exact same issue where the 2.4ghz Radio just disappears wondering if you were able to fix this
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#10
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-09 00:14:33
Same Issue here . 2.4 GHz band cannot connect to any devices. I seem to have started seeing this after I upgraded the firmware to 1.2.0 Build 20170630 rel.49653(5553)
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#11
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