[General Maximus]

I do believe it can't contact the cmts. It sends off an initial ranging request to register itself with the cmts and begin the connection process and the cmts will reply with an initial ranging response. The response or acknowledgement has to be received within a fixed time window and it there is no reply it times out and the modem starts again. It will do a certain amount of retries and then give up which is what happened here. There are numerous reasons why the cmts won't respond within the set time window and in this instance I think it is just a case of being overwhelmed by too many modem hammering it at the same time if everyone was disconnected and trying to come back online all at the same time.