My computer started buffering streaming video and audio that it didn't do before. The internet connection speed is the same as before. I checked the download speed on speedtest.net and it shows 6 Mbps that I am supposed to receive. The computer is Gateway DX4320-02e with 6 GB memory running Windows 7. I connect to my home router through a TP-Link Wireless USB adapter. I checked the adapter is working properly by using it on a different computer - a laptop and placing the laptop at the same location as my Gateway desktop in the house, and saw that the same streaming video that buffers on my desktop runs fine on the laptop. This tells me that wifi signal strength and wireless adapter are not the problem. Video saved on my desktop's hard drive runs fine. I have the same problem with streaming music. Songs saved on my hard drive play normally but streaming from the internet buffers.
Can I conclude the problem is occurring in my desktop computer? What can I do to find the problem and correct it?