I have a netgear router that has 3 networks. On my computer (which has a weak wifi card), only network 2 appears. Network 2 appears to function normally.
On my phone (Android), 3 networks used to appear. Network 3 used to function normally, but it failed a few days ago ("Connected but no internet").
Network 2 used to function normally on my phone, but it failed today ("Connected but no internet").
What's causing these networks to fail?
How can I tell if it's an issue with my phone, router, or modem?
