ccr stop working?

Asking for your help … please … there is a CCR router that suddenly I stop seeing it in neighbors from other nearby routers, and I also lose ping by ip and ping by mac, that is, everything is blocked , but if I put a computer in a port, if I can login the winbox through mac … any ideas ???, it is solved by restarting it, but after a few hours, it does the same, I’m thinking of replacing it, but the best thing is to discover what is the origin of the problem, thank you very much

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