NEW YORK — Users of ADP, the payroll company that pays about 1 in 6 American workers, reported problems reaching its services Friday morning. Complaints spread across outage-tracking sites shortly before 10 a.m. Eastern time.

Downdetector, which tracks service disruptions from user reports, posted on X that problems began at 9:56 a.m. EDT.

"User reports indicate problems with ADP since 9:56 AM EDT," the site said, asking users how they were affected and tagging the post #AdpDown.

StatusGator, a separate outage monitor, flagged a possible ADP outage Friday. It described the issue as connectivity problems affecting ADP time clocks and access to its applications. The site logged dozens of user reports over the previous 24 hours. The most common complaints were error messages, sign-in failures, servers not responding and connection problems.

ADP had not publicly acknowledged a disruption or given a cause as of Friday morning. The company does not run a public status page, according to StatusGator. The extent of the problem, including how many users or which products were affected, could not be independently confirmed.

Even short outages at ADP can have wide effects. The Roseland, New Jersey-based company says it serves more than 1.1 million clients in over 140 countries and territories. It pays more than 42 million workers worldwide, including over 26 million in the........

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