Hi iand1964 👋 Welcome back to the community forum!
It looks like this is a duplicate of another thread that you started for this same issue here 👉 https://community.virginmedia.com/discussions/Wireless/lost-wifi-within-2-hrs-of-installation/5684741/replies/5684765
Sorry to hear you are still having issues with your connection following installation, and a return engineer visit which identified further works were needed to get it resolved.
It sounds like you already have an appointment booked in with the works that need completing - so we are limited in what further help we can provide at this stage. Hopefully the appointment takes place ASAP to get you re-connected.
Please do keep us updated, and we can always offer further help with your complaint once the connection issue has been sorted (although we'd recommend sticking to one thread to get a faster response!)
Thanks for your patience in the meantime. 🌞