I am having the same issue - we joined VM just before Christmas and it has seemed every day at some point the Internet connection just drops; sometimes it dies for a minute and restarts, other times, we have to reset the hub. Like you I am working from home and so it makes Internet calls difficult to schedule, participate and host. In addition, my son is home-schooling currently (as most pupils are), and this is impacting his interactions during lessons.
I see that VM claim on their adverts that their service is 'reliable'. The service level we have received since joining is far from that.
It actually amuses me that the VM website states the following when you have exhausted all of the online suggestions to fix an issue (i.e. 'click the button below') and yet there is no button to click:
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Any help would be greatly appreciated