Do you lose connection when using an ethernet cable connected device ?
The cause could be something as simple as a neighbour's smart burglar alarm system making a report or someone using a powerful microwave.
The problem with Wi-Fi is that it can be brilliant at breakfast time and useless by lunchtime and you haven't changed anything, BUT, something somewhere has changed, then you can spend hours and even days trying to find a fix for something that can be totally out of your control.
if you remove all the internal walls, electronic and electrical devices, metallic pipes and conduits and wrap the whole building in a thick lead shield you will have a good chance of getting decent Wi-Fi from a VM Hub.
Many people have accepted that the VM Wi-Fi is very poor and have purchased third party equipment that is much, much more powerful than the VM supplied kit and once set up have wondered why they waited for so long.
Thanks for posting, I'm sorry to hear you've been struggling a bit with your WiFi connection recently. I have been able to locate your account and check out the back end of your services. Your incoming connection into the property seems absolutely fine and all your hub specs are fine, however we have identified that your WiFi network is congested.
Have you tried performing a factory reset on the hub recently? If not, can you please give it a go to see if that helps?
If that doesn't help, I would advise logging into your hub settings by typing 192.168.0.1 into your address bar. You'll then need to enter your settings password which can be found on a sticker on the bottom of your hub.
Once logged in and at the dashboard, you'll need to navigate to Advanced Settings > Wireless signal and set both the 2.4Ghz and 5Ghz wireless frequency channels to 'manual'. From there, you'll just need to have a play around selecting different channels for both frequencies and then monitoring your WiFi connection after choosing a different channel. Some channels can be more congested than others, so this is why you'll need to try a few different ones to see which ones work best for you.
If you do need any further help after giving that a go just let us know.