No Connection... *LOGS INSIDE*
 

I can't seem to get connected, all i get is a Private Address, this just happened randomly one day.

Here are the logs from my Motorola SB1400:

************Unit Update Failed.
************Bridge Forwarding Enabled.
************Upgrade Failed after download - Incompatible SW file
************Unit Update - Not updating. This image is not for this platform.
************CM Cert Upgrade Disabled. Motorola CM certificate present
************Bridge Forwarding Disabled.
************Attempting Unit Update
************SW Download INIT - Via Config file noserv.cm
************Cable Modem is OPERATIONAL
************Baseline Privacy is skipped
************Unit Update - MMFMMD - SCD flags
************DOCSIS 1.0 Registration Completed
************Attempting DOCSIS 1.0 Registration
************Retrieved TFTP Config File SUCCESS
************Retrieved Time....... FAILED
************ToD request sent - No Response received
************Retrieved DHCP .......... SUCCESS
************DHCP WARNING - Non-critical field invalid in response
************DHCP - Invalid Log Server IP Address.
************DHCP Attempt# 1 BkOff: 5s Tot DSC:1 OFF:1 REQ:1 ACK:1
************DHCP CM Net Configuration download and Time of Day
************Acquired Upstream .......... SUCCESS
************Acquire US with status OK, powerLevel 48, tempSid 1533
************Acquired Upstream with status OK
************Acquired Downstream (402750000 Hz)........ SUCCESS
************Acquired DS with status OK, DS Freq 402750000, US Id 4
*************** BOOTING *** SB4100-0.4.9.4-SCM02-NOSH

Re: No Connection... *LOGS INSIDE*
 

Have you tried calling faults?

Re: No Connection... *LOGS INSIDE*
 

It looks like the modem is being given a no service configuration file- in other words it is not allowed on the ntl network.

This is usually caused by moving house and not registering the modem to the new address or the service being suspended for some reason (eg non payment, breach of AUP etc) so if I were you I would follow Stuart's advice and get in contact with ntl.