Hi,
This issue has now been resolved by PE Micro Support:
"It sounds like this customer has various network cards.
By default, I think the first network connection (Local Network Connection 1) is used to connect to PEMicro devices. There is a utility that can be used to change this globally.
I have attached the program to this support request.
In this program, you can specify the network card to use by typing in its IP address (in this case, probably 169.254.0.99) and see if that allows you to connect to the Cyclone.You may also want to try disabling all other network connections except for the one that the cyclone is connected to.
This should ensure that CodeWarrior uses only that network connection when attempting to connect to the Cyclone."
I used the IP setup utility and now it works!
Thanks
James