Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-10 00:48:09
I even tried the Beta 1.2.2 Firmware and its still doing the same exact thing. after 2-3 days the 2.4ghz completely disappears
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#12
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-12 02:48:45
I had the same problem with mine , after the latest update (2-3 weeks ago) it seems to be OK, I think the 2,4ghz is online 24\7.

But after the latest update, 1.0.9 The Router is super slow to login, and the menus is extremely slow.
And still the parenting control is a joke, it`s not possible to turn off internet access for one device from a specific time .
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#13
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-12 14:05:58
Same problem here. Login page is very slow and the 2.4 ghz is off line. Everything was working great until I upgraded. Any fix for this or do I have to return this router?
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#14
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-13 09:47:56
I talked to support and Have an RMA put in. Hopefully the new one doesn't have the issue
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#15
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-15 02:03:59
I am the OP. I had the problem with 2 new C5400. I got it from Amazon it had the problem, I exchanged it with the same model. Had the same problem.

I had the RMA created for this one. Not holding my breath, IMHO this is a firmware problem and not a hardware problem.
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#16
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My Resolution
2017-09-15 23:23:37
Hi. I solved a similar problem with my Archer5400. I changed the channel to always use channel 4. Here's how I got there...

It was working for almost a year and then one day my 2.4 was gone. The 5 still worked (both of them), but the 2.4 was completely non-existent. I reset the router to factory defaults and 2.4 showed up. Then I did a restore to my settings and it disappeared again. So I reset to factory defaults again. The 2.4 showed up. So I just changed the SSID name to match what it had been and switched it from Auto channel to Channel 9 (which I had been using because it has less interference in my area). I went to go see if my thermostat had connected and it didn't see the 2.4 again. I went back and checked and the 2.4 was gone again. I tried changing to channel 11 and it still wouldn't show up. I finally switched it to channel 4 and it worked! It's almost like the router isn't transmitting the higher channel numbers for some reason. I don't know if this will help anyone else, but I figured since it worked for me, maybe it would for someone else.

Good luck!

TexasWedge :cool:
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#17
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-16 01:41:39
Yeah When I get my RMA I think I'm just going to put the oldest firmware I can find or maybe try a third party one
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#18
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-16 23:45:21
I set the channel to fixed and still got the problem.
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#19
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-21 10:50:47
Well I got the New RMA router. Hooked it up. Worked great for about 12 hours. Then the whole thing went dead and no device had internet wired/wireless. Couldn't even login to the admin page to see what was going on. Tried to reset it. Still did the same thing. The LED's made it seem like it was stuck in a reboot loop. So I'm returning that one and I'm done with TP-Link. Going w/ Netgear for now on
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#20
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Re:Archer C5400 no 2.4 wifi after couple of days and channel shows as N/A
2017-09-27 01:24:06
WOW! what a PIA is to sign up to this forum!

OK Same problem here C5400 stops transmitting at 2.4ghz randomy, the other two are fine... any updates on this?
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#21
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