Connection issues on iPad

Having a few very frustrating rides recently. My iPad keeps disconnecting. Makes racing impossible and ZA workouts strange., due to elastic banding suddenly kicking in when I reconnect.
Am in the UK on Virgin Media. Wi-Fi network created by Linksys Velop. Get speeds on tests of 800 mbps. Though the ping from the Californian servers is slow around 150
Is this the probable cause of the problem?
What can I do to fix it?
I have been Zwifting on this setup for 2 and a half years. Have always experienced the odd disconnection but at the moment seems very regular. Have tried rebooting modem & router and restored to factory settings. Still can’t improve ping.
Thanks for any suggestions.