because of the crappy 25yo wiring plant in my coop that charter does nothing about, i'm forced to reboot my sb6141 each night around 3:25am before too many download channels get lost and my service hangs. http://i.imgur.com/VPmIZL1.jpg so last night i noticed my modem could not get it's public IP back for over 71 minutes. anyone understand what that's all about
sounds like you have a router issue as well.
Your photo isn't there, do a copy and paste of the signal level and error log pages.