Ethernet cabling

I am using a 30m ethernet cat 5a cable from downstairs to upstairs. Downstairs is a TTB router connected to the phone via a Zyxel VMG-1312-B10A which connected to the phone. The VMG is connected to WAN port on the TTB router and the TTB router is connected on port 1 to a patch cable which is connected to a RJ45 socket which has the 30m ethernet cable punched in. Upstairs is an Asus RT-AC68U being used as as an access point again with socket and patch cable arrangement to the Asus WAN port.

My problem is that as far as I can remember I wired the RJ 45 sockets as all wires on the CAT5a are connected which should give me a 1000 BASE T connection between the TTB and Asus routers. For the immediate term this is not a problem as the fastest download I can get is 60mbps. The link is showing as 100 BASE T on the Asus.

If I ever get FTTP I would need the link to be 1000 BASE T to cope with over 100 mbps speeds. What have I done wrong, is there a difference in 100 BASE T and 1000 BASE T wiring? Why is the link negotiating 100mbps?

Solved. The moral of the story is not all patch cables are equal. Upstairs I was using a VMG-1312-B10A patch cable (yellow) from socket to Asus. When I connected the Asus and TTB router together using the patch cable still reporting 100mb. Got the patch cable from the TTB router and bingo 1gbps. So swapped the patch cable from Asus to socket for TTB cable and voila.