Archer C5400X w/ latest firmware, drops wi-fi connectivity to internet all the time.
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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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@Phil1234 Here is an idea and it may be a shot in the dark...understand that I'm not an engineer or even a developer...why doesn't TP Link release an updated, stable firmware for this router? Just a thought 👊
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Cheers for the instructions.
So, for QoS everything has slider set to left hand side (not enabled), and sip alg also disabled.
I suspect that this, along with both 5g WiFi bands set to ac only, has stabilized things.
I would have expected to have issues by now, as I'm connected to my work VPN all day, which is really sensitive to any network 'issues', as is my office echo, which is streaming all day every day, and other than the connection loss the other day, which was confirmed as being an issue with one of the VPN servers, connection has been completely stable. Fingers crossed I can start separating devices across the different WiFi bands now!!
Will monitor for another week, but I think it's all good, so cheers very much for the update. To say this has been frustrating is an understatement 🤪
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@R7000_Guy
I am trying to resolve this issue but i'm unable to do it.... how can i do it please guide me
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Having all the same issues. None of the above solutions have worked. for paying 350 it will be my last time.
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@Domerpoker Agreed. I will never own another TP Link Product again. I don't trust their commitment to their customers.
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Great to hear yours is working too. That gives me more confidence still. mine still seems stable, think id have had problems by now as i was noticing almost daily, and the true number of issues was probably way more than i noticed. Its disappointing theres been no new firmware for this model for so long, not good for the price of the router.
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@Tony Any update on resolving these ongoing issues with this premium router with your engineering team?
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