(CNN) - President Barack Obama tried to log onto the Obamacare website, according to Vice President Joe Biden, who added his name to those apologizing for the online snafu that has rocked the introduction of the administration's sweeping health care initiative.
"The President tried to get online and my daughter tried to get online. I did not, because it was clear that I wasn't getting online," Biden told CNN's sister network HLN on Wednesday.
The Vice President said Obama was told several weeks before the October 1 launch that the website was "ready to go."
"Neither he and I are technology geeks and we assumed that it was up and ready to run," Biden said.
The fact that it crashed and has experienced other problems since its debut is "inexcusable," he said.
He added that the website debacle, which has fueled partisan fighting over the law, has to be fixed.
"Although it's not and we apologize for that - we are confident that by the end of November it will be," Biden said.
Also on Wednesday, Obama said there was no excuse for the problems hampering the introduction of his signature domestic policy achievement.
"I take full responsibility for making sure it gets fixed ASAP. We are working overtime to improve it every day," Obama said in Boston, noting that he was "not happy about it."
Health Secretary Kathleen Sebelius told a congressional committee earlier in the day that the buck stopped with her.
"You deserve better. I apologize. I'm accountable to you for fixing these problems," she said, speaking directly to the American public.
As Sebelius testified, a screen at the House Energy and Commerce Committee hearing displayed the HealthCare.gov website.
It's message to users: "The system is down at the moment."
- HLN's Christi Paul contributed to this report.