You must use a shielded cable. Ideally you get one with ethercon connectors. Personally I would go for Cat6 (or better) at this point but we actually use a shielded Cat5e wire and it works fine (see below). Just make sure you get the the type of cable rated for your installation requirements. If it is simply laying on the floor, or going through walls, then riser cable is fine. If it is going to be routed through a plenum (like at my church the entire stage structure also acts as a HVAC return with air vents on the front of the stage but otherwise no ductwork under the stage) you need to make sure it is plenum rated cable. If it is going to be used outdoors (perhaps for special events) then I would probably look for direct burial (because the jacket has more protection and waterproofing). Other than that, any good quality shielded Cat6 cable should work.
We use this cable at our church for special outdoor events and it works fine. https://smile.amazon.com/gp/product/B01M9AQNKO/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
We permanently installed this cable running from FOH to the stage and it works fine as well. (It is routed so that it doesn’t go under the stage and therefore does not need to be plenum rated). https://www.sweetwater.com/store/detail/EtherShld200–pro-co-200-foot-shielded-cat-5e-ethercon-cable
Both cables have been used to connect various brands of stageboxes to our FOH console (previously an X32 and now an Avantis) and both have worked without any issues – no popping, loss of signal, or other problems.
