Do you have the same machine ID as before? It is displayed on the install startup screen (perhaps elsewhere too). Or you can run ptchostid. The ID is a string of 6 2 digit hex numbers like 00-0B-BD-12-35-A1. This comes from your network card so if you have changed the network card you need a new license. You may have more than one network card in which case you may need to change the order as Pro/E looks at the first one only.
You will need to do some registry editing to tell Windows which one is the primary MAC address.
1) Insert you Pro/E Setup CD and look at the host id that the splash screen shows (down in the lower left corner I beleive).
2) Now go to Start > Run type in cmd. At the dos prompt type ipconfig /all. Note which network card Pro/E is getting the Host Id from.
3) Go to Start > Run and type in Regedit. This will open up the registery editor. Expand HKEY_LOCAL_MACHINE > SOFTWARE > MICROSOFT > WINDOWS_NT>CURRENT VERSION > NETWORK CARDS. You should see two entries here. Click on each of these folders and you should see a description of each network card. Now match up the card from Step 2 and rename that folder to 1 and the other to say 3 or 4. The numbers only matter in the fact that the one that pro/e sees needs to be before the other one.
4) You will need to reboot for the settings to change.
OK, I found that its getting hostid from my wireless card
In the registry editor that folder was named 12 and there were others, 3 and 4. So, i renamed 12 to 1, restarted my laptop and went to install it again, same error
I made my network card primary and pro eng recognized it, and i also connected my internet connection directly to my laptop...but i still get the same error message