Every other computer in the building works great, but my mac pro (8 core cheese grater) which is hardwired to my router is pathetically slow.
In safari, I tried emptying cash from the developer menu, and last night even reinstalled OS X El Capitan. I ran first aid on under disk utilities, and checked to see if Safari needed updates. Then I tried it with Chrome and it’s doing the same thing.
I don’t think its the hard drive. Its an SSD and its only half full.
Does anyone know anything else I could try? Could this be my internet card going bad?
Is there a way to system test or self-diag on a mac?