Slow upload speeds (1.0 - 3.0) I have gigablast 940/35

Upload speeds are slow and I have packet loss (uncorrectable errors in log).  The best upload I've seen using Cox speed test is just shy of 3.0.  I pay for the gigablast, so max speeds would be 940/35.  Obviously, no one sees max, but I should be getting a lot better than what I'm getting.

Download is alright as it maintains around 800.  It's the upload that's a problem.  I am in the Pensacola, FL area just off Lillian near the Alabama border.