If you spent Tuesday wondering why your Fitbit Charge 5 won’t sync, you’re not alone. Frustrated Charge 5 owners have taken to Reddit and Twitter to report their fitness trackers simply won’t sync in what appears to be a widespread outage. It’s the latest in a series of complaints this summer following slow Ionic recalls and messed-up blood oxygen graphs for Android users.

The Verge was able to confirm that at least two of our Charge 5 devices are unable to sync on both Android and iOS despite multiple efforts. We were last able to sync a device at 10:39PM ET on Monday night. Unpairing and repairing the Charge 5 as well as force quitting the Fitbit app were unsuccessful in fixing the issue.

Around 4:45PM ET, the Fitbit Support account tweeted that the problem is resolved, and we were able to get a Charge 5 to sync successfully again.

Screenshot: Downdetector

According to Downdetector, it appears that users were complaining of Fitbit outages since late last night, with reports picking up steam at around 6AM ET this morning. Multiple users have also reported the issue to the official @Fitbit and @FitbitSupport Twitter accounts. The bulk of the reports seem to deal with the Charge 5, but a few users have also complained of syncing issues with other devices as well. Fitbit has responded to individual complaints on its official channels, and confirmed in a tweet that it was investigating the issue. The Verge reached out to Fitbit for comment but did not immediately receive a response.