Helo masters, i have some problems updating the system on misble and ppc to 3.28 ver. of ros, the rb stop all services and the clientes can't authenticade on radius server anymore and winbox stop working i try to connect via winbox but no response from RB, i'm only reboot by a mac telnet connection, then all works only for a few hours then system crash again. Works fine on 3.13, i use 24v PS from routerboard and 1 card r52 for the PTP 5ghz with nstreme enabled and 2 cards Engenius Emp-8602 Plus-s for the Hotspot 2.4ghz, any tips?

Thanks, and sorry about my english, i'm from brasil....