A federal appeals court has ordered  Judge William Alsup to explain why he refused to allow lawyers to engage in settlements talks in a class action against Logitech Inc.

The U.S. Court of Appeals for the Ninth Circuit on Wednesday granted Logitech’s emergency motion for a stay of the case pending its petition for a writ of mandamus challenging two of Alsup’s orders. Those orders, on June 13 and Aug. 23, barred lawyers on both sides from settlement talks prior to certification of a nationwide class of Logitech consumers, who alleged false advertising over the sale of computer speakers.