Playlist is reshuffling?

[_Blank_]

So I am using Spotify for free and since free users can only play playlists on shuffle I have been doing so. But, whenever I go offline and Spotify reconnects my playlist has been reshuffling. The song that I was listening to last will still be there, but the entire playlist reshuffles and I end up possibly having to listen to the same songs all over again. If the playlist is big this can be frustrating as sometimes you never get to listen to certain songs. This also happens when I stop listening to music for other audio like when I watch videos. I'll watch my videos, and then when I open Spotify to play my music again the playlist has reshuffled. Is there a way to fix this? Thanks!