You also might have crimped it for 100Mbps specifically. 100Mbps ethernet only uses 2 wire pairs, not all 4. It was common, and intended, to carry 2 separate connections through a 4-wire cable. Ethernet and up to two landlines (or a 2-pair landline, which existed) was also a good combination.
In all my life as a computer guy (including a few years at an MSP where I saw plenty of ratchet stuff), I've thankfully never seen a 4 pair wire used like that. I've seen cat 5 punched down with just 1 pair used for an RJ11 phone jack (the rest of the pairs were unused.)
