Maybe some program running in the background, i had a really weird experience with Pando Downloader peer to peer.I wasn't able to find this program in task manager, but somehow it works in the background, i had no time for this shit and simple uninstall this software (i used this to download LOTRO) also any active torrent can cause such behavior or may be spyware or malware, adware can slow ur connection too.I would recommend SAS (u don't need better then free version for scanning but without re…