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Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.

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Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-22 15:09:43
Model: Archer C5400X  
Hardware Version: V1
Firmware Version: 1.1.2 Build 20191223 rel.73956(5553)

Recently upgraded the modem firmware to version 1.1.2 Build 20191223 rel.73956(5553) using the local upgrade method (not via gui) to get my download speeds to 600 mbps (max for my cable sub).

 

Since then, none of my wi-fi devices will stay connected to the internet.  Connectivity comes and goes randomly, one commonality is that I cannot sustain a connection through a wifi device.  All my wired connections are fine so I know it is still connected to my cable modem and it still has internet connectivity.

 

I've tried to connect across all 3 wi-fi networks (2.4ghz, both 5ghz).  isolated the number of devices connected to 1, turned off wi-fi radios to see if it was a interference issue, changed from auto channel selection to specific channels, turned on MU-MIMO, turned it back off.

 

Nothing works.

 

With the stock firmware, I couldn't get full speed from my cable connection, but the wifi connectivity was not an issue.  Something happened when I upgraded.

 

I'd like some help please.

 

In the meantime, i'm going to try and apply the 1.1.2 Build 20191223 rel.73956(5553) firmware again and see if that does anything...

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#1
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-23 17:02:11

@R7000_Guy 

 

You could try disabling WMM in Advanced > System Tools > System Parameters. Another setting that might be worth trying/testing would be the wireless settings (Advanced > Wireless > Wireless Settings) changing the version to WPA2-PSK.

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#2
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-23 17:28:39

@Tony Well I reapplied the latest firmware and it did nothing.  Then I downgraded the firmware to 1.1.0 Build 20180904 rel.41828(5553) to see if that did anything.  But still having issues.

 

I'll try these things that you suggest Tony, but I'm not optimistic.  If these steps don't work, what are my options? 

 

I need a working router for my work and being hardwired can't be the only option, I have devices that need wifi.

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#3
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-23 21:17:25
Tried your suggestions Tony, but still the same issues. Any other suggestions please?
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#4
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-24 22:16:08

@R7000_Guy 

 

If wired is working fine, then your modem and the WAN port on the router check out. Sounds like the wireless radio on the router may be suspect. 

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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-25 04:00:18

@Tony Ok, I hope that isn't the case, but if it is, what are my options?

 

I also reset it to factory settings and that didn't help either.

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#6
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-25 20:50:26

@R7000_Guy 

 

Try this for the 5GHz-1 network.

 

-Set the channel width to 80 Mhz

-Set the channel to 48

 

Save the settings.

 

Make sure the wireless devices testing are capable of the high speeds you are expecting or the device will give the impression the router is the bottleneck.

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#7
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-26 07:53:35

@R7000_Guy 

 

I HAVE TRIED THIS but i'm unable fix this issue as well? From last 4 days i'm trying to fix this issue.

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#8
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-03-29 17:57:33
Ok tried what you suggested, not too worried about the throughput (although that's becoming an issue as well. I have to reboot the router nearly everyday to get full spped from my cable connection). it's more of the random drops in connectivity, which is still constant. I'm running out of patience for this router... any other option you can suggest?
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#9
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-04-03 16:12:56

@Tony no change in connectivity.  Any other suggestions for this issue?

 

I'm giving it one last chance before it's being returned along with appropriate review regarding reliability.

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#10
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Re:Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
2020-04-03 19:50:41

@R7000_Guy

 

You could follow up with our support team for additional asisstance:

 

Live Chat: link
Phone: link
E-mail: link

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