Hello @Joseph-TP Thank you for your reply. Network Topology Diagram ISP router—BE450—Desktop ISP is an Internet company's rental equipment. NEC company Aterm BL3000HM model. And I say it again, I've...

It is a translation, so please forgive me even if the document is strange. I searched various places in the community. ISP Router Replacement Twice LAN Cable Replacement Purchase and replace LAN CAT7...