That's what I was meaning Tom not an actual real static ip a self set ip, if you set a static ip or rather a manual ip address.
You have obtain ip automatically, have you made sure you have pressed the radio button for obtain DNS automatically ?
Have you tried accessing the cable modem direct and looking at it's log file and to see if is assigned an ethernet ip, a mac etc?
http://192.168.100.1/is the address to enter it.
BTW shouldn't you ip assign itself a 192. address ?
169. is if the modem can not find an external network. so the problem is either their end or modem end.
Possible...
# Right click My Computer, and click Manage.
# Double click Services and Applications.
# Double click Services.
# Double click DHCP Client. If the Service status is Stopped, click Start.
# Set the Startup type to Automatic
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Further rsearch dictates you have defo no external network so windows is assigning a 169 rather as a 192, the major culprit seems to be McAfee firewall, either going tits up or rather worryingly if it has been uninstalled. Shows what a pile of pish it is.
Apparently with no external network the ccable modem is tripping over itself or pishing its cyber pants over the mac address, it needs to be reprovisioned. That can't happen as they need access to the modem to do it as the modems are locked.
So the modem could also be a faulty one that they need to replace.