Why has Google ruined a perfectly good wifi system

[Stephen26]

Hi All

I have a Google Nest H2D Mesh Wi-Fi Router AC2200 software version 14150.882.9.

This has been working perfectly for a couple of years - no issues - strong signal - great throughput.

Then a couple of months ago things got really bad - ping times to anything when from 7 or 8ms on average to 300 - 800ms. The system is unusable. A full reboot will fix the issues for 2 or 3 hours - sometimes a day. Also the 3 extra pods I have randomly drop of the mesh - no real pattern - just disappear.

Every time I contact support - they tell me the issue is the double NAT.

BUT why was this not an issue until recently? its only started a few months ago.

None of the ISP's in my area support bridge mode on routers connected to a fibre network, so that is no option for me.

Does anyone have a fix for this? Does Google even acknowledge that this is a problem and are going to fix it?

Any thoughts / suggestions or do I dump the kit and buy something that is intelligent enough not to have this issue!

Thanks

Stephen

[hh820]

I have the same system as you, @Stephen26, and have tried to fix the issue of Double-NAT because Nest H2D Wi-Fi Router AC2200 cannot establish a mesh network with paired H2E AC1200 access points unless the H2D router is configured in NAT mode. So, if you had been using them in a mesh setup before the speed and latency issue; then, the  recent performance issue is likely caused by other external changes (unless the router or access point device started failing). Double-NAT works for the most general use of network, but it causes problems when certain types of network interactions are required (multiplayer video gaming, video conference, device-to-device communication, etc., across networks).
Did your ISP allow your modem to be setup in bridge mode before the issue started? Are there more devices on your network,  using prioritized bandwidth or changing usage patterns?  What happens if you connect directly to the ISP modem/router to check on the speed; is it the same as before?

Also, in some cases, Double-NAT issue may be overcome by configuring port-forwarding (if you know which network ports are being used by the failing application/device) [in Google Home app for the WiFi router this can be done by selecting Port Management under Advanced Settings menu of the device].