Deco has temporarily switched your Wi-FI channel width to 80 MHz due to detected radar signals.
Few times in a week I have been experiencing this problem on my XE75 Pro , See below screen shot.
The XE75 pro has the 160 MHz feature which allows high bandwith speeds but downgrades when it detects radar signals. When the deco switches back to 80 MHz its pretty much disconnects all 2.4 Ghz devices, Sky Q , Ring Doorbell and chimes and most of the smart lights etc. They may come back but can be 15-20 minutes later.
On some occasions the Loft Satelite node which generally has strong wireless backhaul and very good speeds goes offline does not reconnect to the Main deco and needs to be power cycled. ( yellow or red light ) .
The XE75 will not go back to the 160 MHz wifi setting unless you manually do so in the app even though the message says " Temporarily" . I believe this DFS strike is false or not accurate as i am not near any airports or a weather station/ radar based in the UK England .
If i cannot use the 160htz my bandwith speeds are generally much slower.
Why do my 2.4 Ghz devices seem to disconnect and struggle to reconnect when this happens and does the system eventually go back to 160 Mhz or does it not work.
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JohnLawyer wrote
@raven-au I don't see how TP-Link are "stuck", given that this router is unique in having this problem while other routers don't?
just give us a settings toggle in the app to turn this off? If it was a legal requirement then it would affect all routers and it doesn't. Other routers can turn off this behaviour.
Other routers don't turn this off, they are not permitted to do so!
I have seen many such discussions on Small Net Builder regarding problems with routers dropping to 80 MHz and people complain bitterly about it and get no-where because it can't be changed.
You might consider trying to work out what device is causing the interference.
I remember a couple of times I had a lot of interference on free to air television and one time I, more or less, accidentally discovered it was a computer monitor about 7 meters away from one of my TVs causing it. It this was affecting the whole house.
Point is, if you shouldn't have any radar interference causing a problem it might be something else causing it.
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Now that I have a look at the available channels in the US I see that in the upper 5GHz band there is a 160 Mhz channel available that does not need to use DFS channels. There might be other locations whose allowed channels permit it.
So while there's no hope for me here in AU if TP-Link are willing to use the fully available channel range on devices that have only one 5Ghz radio (they might not want to because of the overall design of the "Deco all work with each other" concept) it should be possible to use 160 MHz without dropping to 80 MHz.
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JohnLawyer wrote
@raven-au this is not true, please stop posting incorrect information. Most routers either have it disabled by default or a setting to toggle it on or off. Here's an article by HowToGeek about it (I was prevented by the forum software from posting the link, but it's easy to find)
There is no reason why TP Link can't put this as a setting toggle and allow us to turn it off if we choose to. This is exactly what other manufacturers do.
@JohnLawyer I'm sorry, maybe I don't understand what your saying.
Please, tell me what it is you are saying should be an option.
Are you talking about a setting to select the channel used?
That would be a welcome addition and is of course not restricted by regulations.
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This is what the box says
"Robust High-Speed Connections
Experience ultra-fast Wi-Fi with more connected devices thanks to the brand-new 6 GHz band. The added 160 MHz channels prevent competition over bandwidth and drops in speed"
160MHz is not "robust" if it drops all the time. TP-Link should specify clearly that if you live X miles from an airport or have planes flying within X distance of the router that 160MHz drops and is not "robust"
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@Whatacon Radar detection is a problem on the 5GHz DFS channels. It is not a problem for the 6GHz band!
Since replacing a Netgear EX7700 that was affected by radar detection with a couple of Deco XE75 Pro, I have not noticed any problem with radar detection (touch wood)!
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I stand corrected, you are right but I still feel there should still be a claer warning about the radar and living near an airport or having planes flying nearby.
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I've switched to 80 MHz permantently and it seems a lot more stable now. Not noticed any performance impact.
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Well, I've been having increasing network instability for several weeks now. No idea what it could be, but it does seem to have coincied with a recent firmware update.
That said, I think it is exactly the issue descibed here. I just happy to be at a computer when internet was lost. I saw the Deco unit (XE5300) flashing read and so I opened the stupid app. The app had a warning about this swtich to 80Mhz and thus a google search lead me here.
Rather annoying to say the least. I suspect that this is likely related to proximity to an airport and flight path. Guess I'll finally start running the Cat 6E cable I bought...
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Whatacon wrote
This is what the box says
"Robust High-Speed Connections
Experience ultra-fast Wi-Fi with more connected devices thanks to the brand-new 6 GHz band. The added 160 MHz channels prevent competition over bandwidth and drops in speed"
160MHz is not "robust" if it drops all the time. TP-Link should specify clearly that if you live X miles from an airport or have planes flying within X distance of the router that 160MHz drops and is not "robust"
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@Holocron Radar detection is a problem on the 5GHz DFS channels. It is not a problem for the 6GHz band!
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