[Blind-sysadmins] sql server 2014 developer 64 bit connection nightmares

Hi. using windows 10 annivesary update 64 bit, and running sql server developer 2014, 64 bit. And when I try to use the management studio, keeps saying I cannot connect. So did try a repair repaired it, but says I have a unexpected network error, and when I go to options, and database entine engine, the user name for the server is MARVIN-PC, and then says I cannot connect. Did do a repair, and it repaired it, but saisd I could not still connect. The only way to get it to connect is to uninstall, then reinstall. Never had this before when I had windows 10 1511. So, any ways, or maybe any sql database gurus, maybe setting it up wrong. Just very frustrating. marvin.