First off sorry if this is the wrong category to post this question. Now onto the problem. I recently finished building a computer. The first couple weeks it was wired directly into my router. I finally set it up at my desk however I noticed that I was getting very poor internet connection. It says I was getting 1 of 4 bars of internet however in that specific room I am getting 4 bars on other devices. I found an antenna that fit in the wifi card hoping that would improve performance. It now gets 4 bars of internet, but only around 10 - 15 mbps of download and upload speed. All my other devices are getting upwards of 30 mbps. Any help would be greatly appreciated. Thank you.