Are you sure it's not the other way around? Mine shows N/A for serial number and the MAC address has a value.
What does the Summary and WAN Connection Status show?
|Internet Service Provider:||Connected|
Yes, it does look like the line might be down. Use this link and check your location to see if there is an outage.
Sorry to hear about the sitution with your wife's new job. Can you ask a neighbor for a favor and allow her to use their guest WiFi until it's fixed?