I work at a dental office and we experience frequent internet outages from our ISP(Comcast). We are using a Comcast modem/router which is connected to a 24 port unmanaged switch providing connectivity to our file server and workstations. We use a dental software(Dentrix) which stores a database on our file server, however, when we have an outage, we cannot access this data via our LAN connection. I'm not too familiar with networking, but is this because when the router is down, there is nothing assigning IP's to the computers? To fix this, can I configure our file server to act as a DHCP server when the router is down, so we still have LAN connectivity?
I'd greatly appreciate the help,