In August 1741, Field Marshal Count Neipperg sent a petition to the Hofkriegsrat, asking for a promotion for Werner but it was refused. During the War of Austrian Succession, Werner continued as a "Rittmeister", first at Battle of Mollwitz (1741) and subsequently in the Battle of Chotusitz (1742). In the Second Silesian War, he fought in the Battle of Soor in 1745, in the Battle of Roucoux in 1746 and the Battle of Lauffeldt in 1747. Despite his length of service and his unquestionable success as a soldier, he saw many men promoted to major ahead of him. During the fighting on the Rhine, he received a foot wound, his only serious injury during his long military career. In 1747, when he asked for a transfer to another regiment, Nádasdy reported that he was not fit. Werner interpreted this as meaning that he was not religiously fit because he was a Lutheran in the predominantly Catholic Austrian service.