Configuration Errors : IP conflicts, incorrect routing, or firmware bugs. Environmental Factors : Temperature extremes or moisture ingress. Despite their robustness, fiber networks can fail due to: Physical Damage : Cuts, bends, or contamination in fiber cables or connectors. The information in this document is based on all Catalyst 9000 Series switches. These high-speed, high-capacity communication networks are increasingly replacing copper cables, offering superior performance and. Routers causing conflicts in the network, can I solve this? Basically, I have my main router built into the fiber optics modem. The ISP locks most of the features, the only useful ones unlocked are Wi-Fi, Port Forwarding, FTP and DDNS. Despite multiple attempts, the Archer AX6000 v1.