when i type chrome://help/ in Chrome's address bar, i get
Version 41.0.2272.101 m Google Chrome is up to date.
but when i try to go to https://twitter.com i get on win8.1:
This web page is not available Hide details The web page at https://twitter.com/ might be temporarily down or it may have moved permanently to a new web address. Error code: ERR_INVALID_CHUNKED_ENCODING
Please note that when i use another computer on my home network, i am able to log on to twitter.
on the win8.1 PC, using internet explorer,
i get a different error for https://twitter.com :