Help ptp

Good night friends,
I set up two links with two pairs of Mikrotik LHG5
Point A “Where this concentrator” connects to point B, enters another antenna C and connects to point D
All two links are passing around 120M all well configured, with interference-free channels and well away from each other, the two links are in bridge and with Dynamic WDS
Good, as the LAN ports are 100m and the links are passing around 120M should pass the 100M quiet right?
But when I test the band at the end of the link point “C” to the concentrator, it passes only half the band! Why this?

Hi,

What you can check is all your ports connecting at 100M?

If there is some devices connecting at 1GB you should enable flow control on the rb433 or just set those ports to 100M