¿what did I just do? ¿and why that "fixed" the issue?
$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1000 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether dc:0e:a1:aa:0c:73 brd ff:ff:ff:ff:ff:ff
By the way, when testing I tried to use the 8188 characters (a little below the max) and receive: