The problem most of you are having is related to not being able to login while our new login queue is enabled (the invalid password error doesn't actually mean you have the wrong password, it's just what happens when you can't reach the queue at all). The reason this problem comes and goes so mysteriously is because when we turn the login queue off the problem goes away. So far I've seen two main causes of this problem:
Properties file
Some of you have properties files that do not match the current NA version of the game. In order to login, you must have the correct properties files in your League of Legends folder. This means installing the NA version of the game from our website, or at least ensuring you have the following content in your lol.properties file in Riot Games\League of Legends\Air:
host=beta.lol.riotgames.com
xmpp_server_url=chat.na.lol.riotgames.com
enableTutorialGame=true
lobbyLandingURL=http://www.leagueoflegends.com/pvpnet_landing
ladderURL=http://www.leagueoflegends.com/ladders
storyPageURL=http://www.leagueoflegends.com/story
lq_uri=https://lq.na.lol.riotgames.com/login-queue/rest/queue
Some of you have the correct properties file, but I believe you are unable to resolve the hostname of our login queue URL. The steps below should help troubleshoot. We are very interested in determining the reason why you can't connect through the login queue, but before we fix anything we need to understand what is unique about your situation.
If you're certain you have the NA version of the properties file installed, confirm you’re using the right username and password by logging into the website. Check to make sure you still can’t login to the game.
Visit Login queue with IE
Next, try to visit the URL of our login queue using Internet Explorer (not any other browser):
https://lq.eu.lol.riotgames.com/login-queue/
You should see a message about the status of the login queue. If you can’t reach that website in IE, try to visit the site in another browser. If you still can’t see the message in another browser, it means you’re most likely experiencing a connection problem with our login server and you’ll want to try troubleshooting your internet connection:
Things you should try:
-Resetting your modem
-Releasing and renewing your IP address
http://compnetworking.about.com/cs/w...wipaddrwxp.htm
-Resetting winsock
http://seoroot.com/blog/networking/h...t-winsock.html
-Using public DNS servers
-Adding the appropriate login queue URL to a list of exceptions on network security software
If you can’t visit the site in IE, but you CAN visit the site in another browser, something is most likely wrong with your IE/Windows settings.
Things you should try:
-Resetting internet settings in Internet Explorer
-Reinstalling IE8
-Set your Windows internet security level to medium or medium-low
-Clear IE temporary internet files
If you can visit the website in IE but still can’t login, it means something is probably preventing access between the client and your operating system or appropriate network settings.
Things you should try:
-Adding lol.client.exe as an exception on any firewall or anti-virus software
-Resetting internet settings in Internet Explorer
-Reinstalling IE8
-Installing any available Windows updates
-Installing any Adobe updates via Adobe Updater
-Reinstalling League of Legends and/or Adobe Air
If you have tried all of these troubleshooting steps and still cannot login, please continue to post the following:
-Air logs from Riot Games\League of Legends\Air\Logs
-The contents of your lol.properties file in Riot Games\League of Legends\Air
-The URL of the results of this network diagnostic (please don’t paste the results, just the URL after it finishes will do):
http://netalyzr.icsi.berkeley.edu/