Maximum cable segment lengthAccording to the ANSI/TIA/EIA standard for category 5e copper cable (TIA/EIA 568-5-A[5]), the maximum length for a cable segment is 100 meters (328 feet). If longer runs are required, the use of active hardware such as a repeater, or a switch, is necessary.[6][7] The specifications for 10BASE-T networking specify a 100 metre length between active devices.[8] This allows for 90 metres of fixed cabling, two connectors and two patch leads of 5 metres, one at each end.
That's false, it's 100m.187feet is maximum cable run.
Only got told it two weeks ago when I was trying to do something similar.