Kevin SG wrote Have you changed ethernet cables? This is really weird~ Or try to add them one by one? do they work properly? I haven't swapped any cables, yet. But after unplugging them and plugging...

Model : Hardware Version : Firmware Version : ISP : Firmware: 2.0.2 Build 20180117 rel.70858 (US) Hardware: Archer C1200 v2.0 This is the second time this issue has cropped up in the past three...