reply to kmoed
Re: [Cable] T3 Timeouts T3 timeouts aren't the issue here. That T3 timeout in the log was during the modem's reboot process and they are COMMON there and not a problem (you can tell it occurred during reboot because of the date. That T3, I wouldn't worry about. If you get T3s during normal operation (you can tell those because they have an accurate timestamp ... not 1970!) then that might be an issue.
What's driving this problem is the loss of IP during modem operation ... presumably because the modem is not getting a response from the DHCP server. This seems to be more and more common problem these days. THere isn't a lot of documentation about the IP loss error message.