I have determined more information about what is causing this problem, but I still need a solution. Because the building is too large to have wifi service from only one router, we operate two...

Model : Hardware Version : Firmware Version : ISP : I have an Archer C9 (dual-band AC wireless router) Hardware version: Archer C9 v3.0 Firmware Version: 1.3.1 Build 20171215 I used Advanced -> Guest...