Recently while working in Putty logged into my Fedora system I have started getting random ~ characters on my shell. Additionally, while I am editing in VIM I'll have characters randomly change to upper case. This only happens while I am logged int using Putty. I've never had this happen before so I am wondering if an update to Fedora has turned on some sort of keep alive feature in SSH that is causing this. I re-installed putty and trashed my preferences just to be sure. I'm not sure where to start digging to find the culprit. Any pointers?
Why Putty inserting ~ into my Fedora bash shell
terminal;putty