Is this some sort of rolling outage? My service didn't skip a beat last night, but I had an outage in my neighborhood from roughly 8-9 AM CST this morning in th

Is this some sort of rolling outage? My service didn't skip a beat last night, but I had an outage in my neighborhood from roughly 8-9 AM CST this morning in the Chicago area. The cable modem couldn't get a DHCP lease. At my office, also nearby, the outage was shorter; it's on a static IP.