So it seems I am not the only one who has this problem and so far I have not been able to find a solution

Before I installed the Deco products I was using a Virgin Hub3 in Modem Mode connected to an ASUS wireless router

The router also afforded a wired connection to a small TP Link network switch which allowed wired connections to a PC and a Printer

I could print directly from the PC to my Epson Stylue Office BX630FW Printer through the switch

I could also print from my laptop and macbook through the ASUS router and TP Link switch to the printer

There were NO problems at all

I have now removed the ASUS router and put the Hub 3 into router mode but turned off the wifi so it is in effect only a wired router

The wired outputs from the Hub 3 are now connected to the small TP Link switch which is connected to the PC and Printer

One other outputs from the Hub 3 connects the Master Deco 4

There are two other Deco M4's all wirelessly connected to each other/the master

There is good wifi coverage across the house

HOWEVER

Now I cannot print from either of my Laptop of Macbook!

As this problem is clearly not unique to me and seems to be an issue with the Deco product, what is the TP Link proposed solution?

If I cannot get this to work then I will have to return the Deco M4 and look for an alternate mesh solution

Thanks for advising