deco x20 super slow wifi speed
Hi I just moved from the deco p7 to the x20 to test it, I have a 300 Mbps symetric ISP and with the p7 I got all the time wireless speeds between 250 to 290 Mbps which is correct to me, I now do speed tests (wireless) with the x20 and get around 5-10 Mbps when optimal, I have all of the x20 with the same setup as my old p7 with the same locations and even the same ethernet cables (all of them have cable and all of them are at 1 gbps checked that twice) the weird thing is if I do the same test thru the phone app then I get the correct speeds of 290 - 300 Mbps, but all my devices wireless are getting super slow speeds, this happened after I upgraded the firmware to the latest, and I have checked my wireless connections are all on the 5 ghz channel on my devices.
Can anyone help?
Regards