does the amount of wireless device impact the router

[RobTi]

Hi i have a virgin hub 5 and am getting internet dropouts all the time when watching online services, i keep getting check connection popping up when streaming, son says its because i have too many devices connected, i have 10 ethernet and 21 wifi devices and 6 zigbee connected on a 100Mb connection. the wifi can be smart switches, smart plugs and harmony hub. wired is pc, server, all my av equipment. So i can have everything off bar the tv and stream and get the fault.
So have i too much connected ?
Thanks

 

[RobTi]

Thanks all, it can happen on tv, Apple TV, av receiver if internet radio is used. On streaming it happens on all services so I have booked an engineer for Saturday as on my last install I had an attenuation device removed by the engineer so maybe it’s needed again