I have found the solution,, i have found the solution,, please note that this has been tried and tested to proove my way,,,,,,,,SOLUTUTION
Copy ur main profile out of my document folder/testdrive/ ,, into a new folder an paste
Delete all files in the testdrive folder,
Start game,,,
new profile,,,
exit game
go to testdrive savegames,, delete the new profile,, then copy the old profile into the folder,,,
not that hard,, then restart game,,,
This happened wen i tried to play my game today,, i was like ,wtfishes, looked around and saw many like my problem,, but with no sure way of fixing the failed to connect problem. Mines all orignal, no expantion packs. the patch that i downloaded, saw that i dint have any test drive unlimited game on my pc,, so that was no use,, although mine is up to date at 1.66. Took me about 10 mins to figure a way. give it ago,, no need to register other accounts or owt like that,, any way,,, hope u find this usefull..