Originally posted by: ActuaryTm
Originally posted by: neonerd
no routers...cable going directly from modem to computer
You've misunderstood.
A router doesn't have to physically exist at that location for this to be a problem. As this is a mobile machine, if it has connected to any router at all (on the same ISP), and cloned the MAC address of the ethernet adapter to any router (wherever it may exist) connected to the ISPs network, then it is possible that may be the cause of the inability to resolve to an appropriate IP address when connected directly to another modem on the ISPs network. One would receive the internal default IP as described above in this particular instance, as well.
Might try changing the MAC address itself (a bit of registry editing, or
this application), or utilizing an alternate ethernet adapter (I tend to carry a spare for instances such as this).