How to fix: Set the port to Auto-Negotiation or manually configure both sides to the same speed and duplex settings. Uplink Port Mode: Some switches have special settings for uplink ports (like a dedicated SFP port). Succesfully added the IP Addres, Subnet Mask, Default Gateway (Static route) and set the uplink port. Can some explain why sometimes I am unable to get to the up link device which is not my primary WAN. The device on WAN2 has an IP address which is a different range of IP addressing than I am using around the normal network. Sometimes I get to is, web service type portal, sometimes I do not get to. How to solve the problem of uplink port not recognized by the switch? When a switch does not recognize an uplink port, it can cause disruptions in network connectivity, as the uplink port is critical for connecting to other switches or routers. Since the length of transparent fiber is fixed – 10m/20m/30m/100m (100m is available, but not on Amazon), the ATB box is needed to store the overlength.
