we have installed 20 km point to point link with netmetal 5 with soild rocket dish of 30 dbi. we are getting -60 db single strength. in mikrotik bandwidth it shows 80 Mbps TCP bandwith. but when we test with ierf tool it gives 3 mbps bandwidth. also simples copying of big files from one location to another location is slow. UDP bandwidth 120 to 140 Mbps tested with different protocal but no change.

is there is setting isssue.