Hi,
Since 5.x SNMP support is has been buggy! We have a lot of RB1100 in our POPS and our monitoring graphs never works as it should. The SNMP server on those routerboard suddently stop working. On friday after a lot of fight to put Cacti to get responses from the RB SNMP SERVER. Worked but today the graphs just stoped working again, no response from RB snmp server.
I have some x86 5.7 and dont have that problem. only on RBs.