I received the following from a distributor (from one of their customers) this morning:
We have some issues with their GigE suppressors with Mikrotik Routers and UBNT AC gear. Using the combination of the 3 we generate sever FCS errors on these links, which causes issues. If we bypass suppression, these links run clear and without issue. I have not heard of this before. We made some improvements that helped ePMP and 450 gear, but nothing like this. Many times odd issues like this are due to noise coming through the ground. I will attempt to replicate this once I know the exact gear to get. I wish the customer would just loan me the gear with the problem but I don’t know who the customer is.
