Tp link are the worst, in fact they're downright scum for plastering 1gbps all over their boxes. In actual fact, it's 500gbps max, but they think it's fair to add both directions and say 1gbps. You wouldn't catch isps doing that, there'd be an uproarHow do you mean never work at advertised speeds? I think there are too many variables for them to state garuenteed speeds so give speeds based on optimal conditions. Much like everything in life.