(CCR) winbox access issue "freezing" / system stop

Hello,

we are an ISP and have at the moment two CCRs running, both with 6.0RC10

one has 10d uptime and experienced until now no problem

the other: at 8d uptime, the issue arised “no winbox/ssh access possible”; after 2 days in that state (but everything working; it’s acting as BGP router with two 100Mbps peers) today morning it crashed; we had to run to the site and manually restart it

the question: should we assume that, next time the “freezing” issue arises, it’s safer to restart it as soon as possible (at night), because after that a crash is anyway to be expected?

we are using it because the 1100AHX2 we tested was lagging, cpu occupation 60% on average; the CCR has an 1% average and as a result the customers are experiencing faster service

Best regards