I've encountered with an issue after Spring 16 release has been deployed. Basically I cannot do anything with my project in Eclipse (Kepler + latest available Force.com IDE), every time it just throws error that credentials are invalid. I've tried to re-create the project, but got same error.
Everything worked fine on Friday. And I know that credentials are valid, cause it allows to log in with them from the website.
Has anyone from the community encountered with similar problems ?
Any help or suggestions would be appreciated.
Thanks in advance for your help.