The last few days I've had a problem with just one website, pages hang when loading, giving me time outs, 404 errors, etc. I decided tonight to reset my router. When it finally came back online I had a message on my screen that there was two computers using this same IP address. I only have one computer here. The router requires me to input SSD code, so I know it's not on my end. How can I see what other computer is using this same IP?