ready. one computer data expert took us through his own frustrations with the system. luke chung operates a database company in northern virginia. he's an expert on heavily trafficked websites, but even he is frustrated navigating healthcare.gov. >> oh this is interesting. >> reporter: what have you got? >> i don't know what i have. i just tried to login to my account that i have already established. >> reporter: and? >> and it says "unexpected error." >> reporter: since the obama care rollout chung has been trying only to get quotes on prices, not even to enroll. error messages, slow connections, getting booted out of the system, other problems have exasperated hundreds of thousands of insured who tried to logon and we're hearing the obama administration was warned withal ahead of the rollout that the online exchange had big problems. one democratic ally of the administration, congressman robert andrews says he spoke to the white house months before the unveiling. >> i discussed with white house