Maybe this will help
Taski wrote:and is there a known issue with macs and pcs on same network that causes net issues?
. It's for old versions of the OS but it applies to the more current versions. For OS X 10.9:
From the Apple menu, choose System Preferences.
In the left sidebar, select "Ethernet" or "Wi-Fi".
If you see a lock icon in the bottom left corner, click the lock icon and enter your administrator password.
Click the "Advanced..." button.
Click the Hardware tab.
From the Configure: pop-up menu, choose "Manually".
From the MTU pop-up menu, choose "Custom".
Enter your desired setting (72 to 9000). Some ISPs may have a specific suggested MTU value. If you're changing it without a specific recommendation, make incremental changes (such as 1500 to 1400 to 1300, and so forth). Try 1460
Click OK, then click Apply to save your changes.