Upgraded to Hub 4. Since then all calls whether inbound or outbound cut out at different durations into call. Sometimes ok for 3 minutes, other times cuts out after 1 minute. I am yet to have a successful call. Tried all the online tests which confirm a fault. Have re booted router as per instructions and have switched everything off and back on again. Still have fault
I'm really sorry you're having some issues with your calls since changing hubs, this isn't good.
I have had a look into your account and it is showing some issues with the quality of your calls.
I've booked a tech visit for you, the details of this can be found via your online account and if it doesn't suit you then you'll also be able to re arrange from there. Please ensure you have somebody over the age of 18 in the property at the time.