Cant connect, Times out for ipod

Can someone help me with this problem, i have a hp laptop that i just got and i want to add some things to my ipod touch but it wont connect and i havent done anything else i use to use winscp from my desktop and it worked some times then it discconect but when i use my laptop i cant connect to winscp to my ipod touch using the same ip and everything help do i have to redownload or what do i do.