WASHINGTON — President Obama’s approval ratings, which hit his all-time low last month, have returned to where they were before the rollout of the health care law’s enrollment process, but Americans still lack confidence in the White House’s management of the Affordable Care Act, according to the latest New York Times/CBS News poll. The public’s opinion of the law itself has improved after repairs to the enrollment website.

According to the poll, 42 percent of Americans now approve of Mr. Obama’s overall performance, and 50 percent disapprove. That is not exactly good news for the president, but is better than his numbers in mid-November, after he admitted he had fumbled the rollout of the health care law’s website. Then, just 37 percent approved and 57 percent disapproved in a CBS News poll.

The findings suggest that for Mr. Obama, the political fallout from the website’s start-up might be over. The White House says the website, HealthCare.gov, is now functioning smoothly for most users.

But Americans do not appear to be convinced that the problems have been fixed. Just one in six Americans in the poll said the online insurance enrollment process was going very well or somewhat well.