Did you close all wgt web pages in the browser close the browser and clear the cache?
I'm not familiar with the i pad but to clear the cache should be in settling>apps and find your web browser >storage>Clear cache.(other people on here will correct me if that's the wrong path)
Try that then go back to my first post instructions it will automatically log in via the app or open wgt page you may have to log in that way
Also there should be clear data on there this holds password's ect for all websites you have given permission to remember your details, this should not be the issue but you could try it if clearing the cache doesn't work.
Cheers
Liz