Been three days without issue thankfully. I haven't yet switched to using the deco's as AP's. But one thing I have tried is disconnecting the Netgear unmanaged switch that I had connected to the main...

Thanks I will give this a go in the next few days and let you know how it goes. I am currently using dynamic IP.

I am currently using my Virgin Media Hub 3.0 in modem mode with the TP LInk Deco S4's as the router and to extend the range of my wifi as I had poor connection upstairs. This was all working well for...