Hi, I just got a 2 units of Deco M5, I have one issue that, one unit of the M5 works perfectly with either 2.4G or 5G WIFI.
However, another unit only able to broadcast the 2.4G WIFI.
I tried to disable the 2.4G of this unit, then the 5G WIFI cannot be connected at all, and there is one unknown "DECO_F0037" WIFI SSID appears and cannot be connected at all.
The 2.4G signal strength of this unit very weak also. I test the internet speed of this unit, it can reach the max speed of the package I subscribe.
Only the WIFI broadcast issue. Signal weak and 5G cannot be connected.
The working unit can cover quite wide coverage, the problematic one, a few steps away then the signal drops tremendously.
I have reset many times of this unit. I am not sure anyone has this issue before?
Is this a defected unit?



This post has been edited by kitter: Dec 6 2020, 12:28 AM

Like I said,
I enabled both 2.4G and 5G so I test the speed using the phone just next to the device and I only managed to get 2.4G speed.
So I disabled the 2.4G setting and leave 5G on. Then my phone totally cannot connect the 5G WIFI even I can see the SSID still there.
Then there is a weird SSID WIFI appears the name something like "DECO_0F383" , can't really remember the name.
Another unit is working fine. I can connect either 2.4G or 5G when I disable the either one network.
It is a brand new unit just got 2 days ago.

This post has been edited by kitter: Dec 6 2020, 08:44 AM

I use it as a router.
When only enabling 2.4G WIFI, I can connect.
When only enabling 5G WIFT, it cannot be connected.
Same way of doing for 2 units, one functions perfectly, the other one no.
That's why I have some questions here.

Yes 2 units,
and the problematic unit will disconnect where it is only 20 steps away from the main deco.
I already did all necessary methods to find out the problem.
It really is the said unit got issue.
I did identical setting on both units.
One works well, but on doesn't.

Yes. Manage to get 1 to 1 exchange within 7 days of purchase.
It's truly a defect unit in the box.
Now My mesh WIFI working seamlessly and no WIFI dead-zone in my house.

I had same scenario as yours with my Deco M5.
I brought to the shop I bought from within 7 days.
I managed to get 1to1 exchange, and now, my units work perfectly.

My one is 2 units in one box. They change totally new to me.
They didn't ask any question.
Even your one is over 1 month cannot be 1 to 1 exchange but if it is faulty, it is still under warranty.