@Ahmed_Alawadhi I had this same issue when running 2 x Deco E4 in router mode. Eventually thought I had solved it when I introduced an X50 into the mix and it has been running for 3 months issue...

@David-TP Will give that a go and see how I get on! I haven't put the Virgin Media hub back in to router mode and use the Deco E4 as access point, it will be annoying if I have to do that to fix it...

Have been running 2 x Deco E4 for 2 years now without any issues but have recently hit the following problem. When I get to around 25 devices connected the Deco no longer issues new IP addresses...