There has to be some problem in nstreme, because on my 46km link i get signal -68 rate 54mbps (everything seems to be fine) but ping times are from 3 to 1000ms jumping all around. When i switch to no-nstreme the link goes like it should be - pings 1ms, little less bandwith. I am using latest 2.8.13 build. I have also 2 35 km links with 2.8.11 + nstreme - they were working fine even if antennas were not alligned. I suspect there is a change in software package, which should be fixed right away.
which band you use?
5g-turbo