If you judge by any help forum, 99.5% or thereabouts of all posts are of problems. But as VM have over 5 million customers, all the problems here are a minority. Starting from a "VM is ****e" analysis I've not got a lot to work with....
Wifi is only that last little bit from the hub (or a third party router if you use one) to your wireless devices, and I'm not sure if that's the problem, or that all internet connectivity is pants? Wifi can be a problem, but usually seen as low consistent low speeds and poor wifi reach, and the solution to these sits in your hands, not VMs. If the problem is on the broadband side of things, and is down to a poor connection between the hub and VM's network, that's usually easily fixed, but you'll need to help identify whether that applies, and to do that you'll need to follow the advice below.
Connect to the log in page for the hub. But don't log in, just click on the link "Check router status" That'll bring up a window with five tabs. Open the Downstream tab. Select all the text (Ctrl-A if using a keyboard), copy it (Ctrl-C), then paste it (Ctrl-V) into a reply here as TEXT not screenshots. Post that, do the same for the Upstream and Network log. You'll get an error message when you post the Network log, just click on "post" a second time. Then we can check for any obvious problems with power, noise or error counts. Ideally don't do this within 24 hours of restarting the hub, as that clears error counters that sometimes show important evidence.
