That doesn't fix the problem as I meet to connect an AP to the 5866T and when i do so i have no idea what is connected to the 5866T. In fact when i look at the list of connected devices to the AP i suspect that none are connected to the 5866T even if the Wifi is still enabled on the 5866T. It would be good to know.   ... View more

Yes I have reset it. I have discovered that it's caused by adding another AP to the network. Removing the AP or changing the AP into a Router fixes the problem. ... View more

, I don't see how changing to a fixed IP address will affect double NAT. Nor do I understand why double NAT is causing my problem in the first place unless there is some weird periodic communication between the wifi points and Google's backend to confirm the mesh is stable that is being affected by it. What I do read elsewhere is the TPLink does not have this issue with it's Deco system and even if it did at least you can create a mesh in AP mode, unlike Google. Time to return the Google system and buy a TPLink system. Thanks for trying to help. ... View more

Hi @david64  I have the MK2 set of 3 Google Nest Wifi. The Router is connected to the LAN port of the 5866T. I have dissabled wifi on the 5866T. I have connected the two Google Wifi points to the Google Router via a wifi mesh as there are no LAN ports on these wifi points for an ethernet backhaul.    The 5866T is configured as default and so is the Google Router so the Google Router is receiving its IP via DHCP from the 5866T. Initially every seems to be working fine with a Great connection status for both Wifi points but after a few days one of the wifi points status says offline and when you talk to it it says a glitch has occured. The interim fix is to reboot the wifi point.   I have searched the internet and spoken to both Google and TPG support about this problem which appears to be a common one. From what i can understand this is probable caused by double NAT. I believe I can only remove one of the NATs by changing either rougter to Bridge Mode. Since you cannot do that on the 5866T the only option is to do so on the Google Router. The problem with that however is that Google Mesh system cannot function in Bridge (AP) mode and i am therefore unable to create a mesh using the Wifi points. From what i read this is not a problem for the TPLink Deco system that can funtion as a mesh in AP mode but you lose some of the advanced fuctionalitry and reporting, which is fine by me.   From what I have read on here there are a few other members who seem to think you know how to overcome this issue, hense my original question to you.    PS. I have currently added the Google Router to the 5866T DMZ to see if that makes any difference. Some say it may some say not. Nothing ventured noting gained as they say.   Thanks    ... View more

Hi David, can you point me at your guide to setting up a Google Wifi Mesh with a Sagemcom fast 5G router. I can't find it sorry. I am getting the access points go offline every few days and Google are asking me to get my ISP to turn on Bridge mode on the Sagemcom with is not possible of course. I am testing putting the Google Router in the DMZ to see if that makes any difference. ... View more