[ubuntu] Slow Samba - NIC issue?

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http://ubuntuforums.org – I've used Samba for years and never had a single issue with it. It always worked as predicted and I was always happy with it. For a small project I was doing I wanted to hook a Macbook to my Ubuntu 12.04 laptop (Toshiba Ultrabook) to transfer a ton of data using a cat5e cable. I set a static IP on both and connected accordingly to the share from the Macbook. The transfer speed was unbelievably slow, upwards of 7KB/second. For reference, it quoted me 2 hours to transfer 200MB via cat5e. On a hunch without changing anything else, I connected to the samba share from the Macbook again, but t (Hardware)