Hi @Lenniep
Thanks for coming back to the thread.
As it's just WiFi, please try the Connect App for me 👉 https://www.virginmedia.com/broadband/connect-app - when downloaded, you'll be able to do a wireless scan in the property. This will check and identify any coverage blackspots. It'll optimise where possible and also if a Pod needed, prompt you to order.
I will however send you a PM, this is because 2 of your upstream channels are out of spec. This needs a tech to fix and then when that's done, use the Connect App to do the check 🙂
Best wishes.