Bob has a mesh network for his 2800 sq foot house, and he's having issues. There is likely a congestion problem. If Bob's accessing the internet after 6 PM, for instance, that's when everyone is watching Netflix. That can really drain that shared internet access of the ISP. It could also be that since his network is new, it may not be updated yet. So give it a few days. If it doesn't improve, it's time to contact the ISP's tech support.