Damage to cables can occur both during installation and at any point subsequently. There are rigorous guidelines for the various classifications of wires, and failure to follow them may result in connectivity issues. Inadequate design and implementation may leave copper wires in your network susceptible to interference. Network malfunctions can be devastating, drastically decreasing... https://www.networkinfrastructuremagazine.com/news/troubleshooting-common-cabling-network-issues-nid-1910.html