What a file transfer fails or times out how do i restart the transfer without starting all over agai

I have been attempting to transfer 1 or 2 GB files from my home pc to my laptop.  I get 60 or 70% of the file over and something happens that stops the transfer, usually its some sort of timeout in team viewer.  I see no timeout value in any settings.   I also cannot seem to resume the file transfer.  It want me to overwrite the gig or two that have already been transferred.   Whats up with that?   Heck even back in the 1990's PCanywhere let your resume a file transfer. 

TNRPP?  

-Bill