I couldn’t find any information about the Dallas Cowboys being suspended for 6 months. However, I did find that Ezekiel Elliott, the Cowboys’ running back, was suspended for 6 games in 2017 due to violating the NFL’s personal conduct policy ¹ ² ³.
The suspension was a result of a domestic violence investigation that began in July 2016. Although Elliott was not charged with a crime, the NFL conducted its own investigation and found sufficient evidence to suspend him ².
Elliott appealed the suspension, but it was upheld. He missed games against the New York Giants, Denver Broncos, Arizona Cardinals, Los Angeles Rams, Green Bay Packers, and San Francisco 49ers ¹.
It’s worth noting that the NFL’s personal conduct policy allows the league to discipline players even if they are not charged with a crime. The policy is in place to ensure that players conduct themselves in a manner that is consistent with the league’s values and standards ³.