I believe the cord is a 100' footer, It starts at the Zulu HQ family room and winds it way through several passages
through CnCs office through a bedroom to Zulu HQs. I guess the 2 sets of 4 paws, 3 sets of 2 feet traverse the
secure line several times a day, occasionally, stepping on it. I abandoned the wireless connection years ago due
to frequent interruptions of my favorite live streams. I intend to revisit Best Buys again later in the week, hoping
they listened to me and transferred one in.
I don't know if technology has changed, but when I was working the computer techs told me that about 30 feet is the limit for reliability of the cable. Check online for advice on this stuff.
Cat 5 cable itself is pretty tough. I don't ever recall any crush issues. My Cat 5 is routed across one of the kitchen doorways with only a piece of carpet covering it and I have never had problems with the cable itself - just the wall jack connection and the junction box in the building's basement where a telco tech made a boo-boo and let another wire touch my connection.
Some updated info. 30 ft is not the limit for that. 100 ft might be fine but that depends on other things. The speed matters a great deal. 10 Mbps is more forgiving than 100 Mbps is more forgiving than 1000 Mbps (Gigabit). Crushing the cable does matter. A crush like from the side of a heel or a pointy high heel would do considerable damage. The ends of the cable might loosen from movement or tension. A cable might have been poorly made, giving it less tolerance of some of the wear factors mentioned and others. The poor manufacture might be as simple as a substandard crimp when putting on a connector. A loop in the cable that gets pulled tight, causing a crimp, is very bad. Once wires are damaged inside a cable they stay damaged even if you straighten it out.
The signal has to go from point A to point B in good enough shape. Every problem along the way subtracts signal quality. Things get bad enough and errors happen.
They do what they can to make technology resilient and robust and we get used to things 'just working', but it's much easier than we usually think to make things not work.
None of that is to say the cable (or equipment at either end of it) is the problem. Can you try WiFi as an experiment? Can you experiment by moving the PC closer and plugging in a short cable? Try changing one thing at a time to see if results change.