@Bader2001 

Hi, I tried to do some troubleshooting based on instructions above (thanks for those), but found it bit difficult. The wireless connection dropping is hard to predict and you should be immediately testing wired connection, which is not always possible. But according to my older son who is spending quite much time behind his pc, he has not complained any wired connection problems, which indicates that the issue was in wireless and not likely ISP problem. But cannot be 100% sure.

Since my last posting, I have noticed that the wireless connection issues have been much more infrequent and I barely have them any more, maybe 1-2 times per week max. And now in this corona situation the whole family is at home and someone is always in internet and we have basically no complaints.

I have not made any changes to Deco setup, only a couple of re-boots to one satellite, ensuring all wired connections were ok and switched some cabling to new, and maybe one sw update to Decos. So the initial problem has basically disappeared somehow and I kept the units and now I am quite happy with them. Speed is amazing and I like the mibile app which is good for my purposes. So unfortunately I cannot help you too much here as the issues have been fading away... I don't know do the Decos have some intelligence built-in so that the units 'learn' the load balancing etc?

@Kevin_Z 

Hi there, 

I seem to be having a similar issue as well. I have 1 main deco and 1 satelite deco and on my satelite deco I have a wired in laptop and another laptop on wifi. I notice that the laptop on wifi loses internet a few times a day and I need to disconnect and recconnect as the wifi still says its connected but no internet. I notice that I have the same issue with my other laptop that is wired into the satelite deco being connected but losing internet. Seems there must be a connetivity issue between the main deco and the satelite deco. I do not  have any issues when I am connect to the main deco. I have even reinstalled the latest v1 firmware and nothing has chaged. Please advise on the solution.

I appear to be suffering the same issue, I bought these deco9 units as an upgrade to my old AV500 units. I am a network engineer by trade so my home setup is a little a-typical but still fairly simple. I installed the decos as access points initially connected to a L2 switch off from the main router. 

The decos worked brilliantly for about a week and then on saturday they not only stopped routing wifi they also took down the wired network. I was able to repeat this several times, unplugging the decos brought the network back to life, plugging them in and after 10-20 minutes of normal use even pings across wired PCs where dropped.

I moved everything around in the end so the deco was able to be plugged directly into the vm router and Sunday they were ok again, until this morning. I started work and in my first meeting the network drops out constantly. Slight improvement, today the decos are only taking themselves out and the wired network appears to remain ok.

I have now returned to using the old AV500 units. they're really slow, they get quite hot and every few days they need a reboot but they still work better than the deco's 

Is there any update on this at all?

Seems like I'm having the same issue: the devices connected to my Decos by an ethernet cable (via a switch) work perfectly while devices on Wi-Fi lose the internet connection regularly (while still being connected to the Wi-Fi network). 

@tau 

I have the opposite probelm - my wired connection drops even after short periods of time. The deco andoid app also drops my profiles almost immediately rendering the parental control feature useless.

Tp-link please help! I 'upgraded' from your av600 powerline system to extend my isp router/access point. It was totally stable for 3 years. Now £300 later I have all these problems. 

I'm also having trouble with occasional dropouts in wifi even though the wired works fine.  The dropouts are brief but annoying since it seems to happen at least once a day.  Was hoping there would be debugging and an update.

@tykra no response and no support. I will not be buying another TP-Link product after this experience.