@Kevin_Z Hi! Yes, I did try to modify them one by one to isolate the issue. I will try to reset them later to see if there are any changes. Other than factory resetting the router, do you have any...

Hi! So my setup are the following: Main ISP's router -> 1Gb switch -> C80 Router ISP is Parasat Fiber (300Mbps) I just newly purchased the router as a replacement for my Tenda AC1200 since my cousin...