@anonymous: First off, Welcome on board!
I can assure you that your problem is a different one, since the fix over
here belongs to an issue that reads something like "Error while trying to
connect to server ...".
Do the following:
- backup your WipEout HD 'Save Game' to memory stick (or whatever)
- wipe out WipEout HD from your HDD xD
- do a hardreset of your PS3 (power off) and turn it back on
- download & install WipEout HD again
- start WipEout HD and try to go online
If the error is gone then copy over your 'Save Game' and check again.
If not, then try to start up WipEout HD using another PS3 User (another
PSN ID) and check if the error is still there. Give a report. Hurry!