@WarrenHolt This update should not cause connectivity problems with specific devices or specific sites. For the Newifi-D2 model, the only thing that is changed is the port numbering. The port numbers were 1, 2, 3, 4 for v2.7.6 when you look at the back of the router, counting from left to right – this was contradictory to the port markings on the router box. For v2.7.7, the port numbers are 4, 3, 2, 1, consistent with the markings on the box.