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Members of the Wisconsin National Guard assist people at a COVID-19 testing facility at UMOS, 2701 S. Chase Ave. in Milwaukee. (Photo: MIKE DE SISTI / MILWAUKEE JOURNAL SENTINEL)

A website for Wisconsinites to sign up for free coronavirus testing by Wisconsin National Guard teams went offline Monday evening.

Most people waiting in line at five testing sites in the state when the website went down were still tested.

The website — — allows people to register for testing in advance with their personal information and gives them a QR code to scan at a testing site. They also get an email with their test results rather than a phone call.

Wisconsin National Guard spokesman Capt. Joseph Trovato said the website outage is likely linked to a much larger Microsoft outage affecting many different web platforms on Monday.

The Wisconsin National Guard’s coronavirus testing task force