If you’re having problems updating the game there are a few things you can try: 1) Take a break. We might in the middle of deploying an update; try again in 5 minutes. Most updates go through *very* quickly but sometimes it takes a while for the content delivery network to replicate everything around the world.
2) If the update is failing because it is crashing, please send a bug report in to support (see https://forums.warframe.com/index.php?/topic/25-beta-bug-reporting-how-to/ for details). 3) Load up www.warframe.com in Internet Explorer to make sure it’s working; IE uses the same code that Warframe uses so it's a helpful test. 3a) Make sure the “Work Offline” option is not checked under the File menu (tap the Alt key if the menu bar is hidden). 3b) Delete IE’s browsing history under the Tools menu -- just purge Temporary Internet Files (you can keep the rest). 4) Bypass any web proxies your network might be using (we try very hard to work with proxies but in some cases they will misbehave and give you stale & old data!). Under the Internet Explorer Tools menu open up the Internet Options panel, flip over to the Connections page, and press the LAN settings button. 4a) If there is a proxy server configured, try disabling it. 4b) If it is configured to automatically detect settings try disabling this (it may be automatically setting you up to use a proxy server). Note that after you disable these settings you should confirm that IE can still load pages – in certain restricted environments you have no choice but to go through a proxy; if you are stuck in this situation and can’t work around it please send your Launcher.log in by support ticket and we’ll see if we can see what the problem is. 5) Make sure HTTP 1.1 is enabled; under the Internet Explorer Tools menu open up the Internet Options panel, flip over to the Advanced page, scroll about half-way down and make sure “Use HTTP 1.1” is enabled. 6) Check your PC's clock -- if your date & time is very wrong it can cause certain SSL certificates to appear invalid and you will have problems connecting to our servers. 7) Run Windows Update. Warframe uses a number of Windows SDK interfaces that have been updated by Microsoft through Windows update so it might help.
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If nothing helps please attach your EE.log and Launcher.log files from %LOCALAPPDATA%\Warframe to a support ticket: http://support.warframe.com/ -- this is essential to understanding what's going on.