I think I have found the problem.
I decide to go back and start from scratch, unplugged everything from the router except the power supply, reset the router, only connect the ethernet cable from the ont into the router, all working great, set up all of the alexa and ring devices, able to use all apps on my mobile.
Then I thought i'd reconnect the rest of the set up one cable at a time to see if anything goes wrong, I connected the ethernet cable that goes to the gym which is basically a garden room, I have a second router in there which provides wifi for the gym and the garden, I went into the gym and connected to both available wifi connections, 2.4 and 5ghz. All good, went back into the house and auto connected to the home wifi, all bad, could not open the apps, etoro, duolingo, etsy seller.
Unplugged the gym cable from the router and all apps opened fine.
So it's when the supply to the second router is connected that the issues start, why would that be? There was never an issue before and I have had the second router set up for ages!