Here's my problem:
The launcher and server has been working fine for months.
About two weeks ago my friends couldn't connect to my server anymore, but could run the launcher just fine.
We tried again today and now none of us can start technic launcher without all sorts of errors.
It takes 10 times as long to start up, with an "Updater has stopped working" message half the time. i pick "close" and the launcher starts.
sometimes the launcher starts but can't connect to minecraft.net, but if it can i click login and it says "Update failed" about half the time.
If i manage to actually start Tekkit i can't join my server (localhost) i get either "Failed to verify username" or "Failed to login: Bad login"
Regular minecraft works fine.
We have deleted technic launcher and downloaded the exe again.
I have downloaded Tekkit server again, and checked that the ports in server.properties still matches the ports in Windows Firewall and my router.
I have tried using Java 6 and 7 at the same time, uninstalled Java6, didn't work.. uninstalled Java 7, re-installed Java 6, didn't work..
tried placing Technic launcher on desktop and making a .bat file with the lines in this thread.
WHY MUST LIFE BE SO HARD!!? http://www.youtube.com/watch?v=Zm080jEt2hc