I changed my username and I tried logging back on and when I got back on, Minecraft would keep saying      Error: Authentication To Minecraft.Net Failed   All the servers I visited also said this.
2598
I don't understand this and I'm now worried as I have donated to a lot of servers and I don't want to lose this account. On the launcher it says my new username but when I log on it says "Account not Authenticated with minecraft.net" and "Non-Valid Username".  How can I regain the ability to use my account online?
41722
My Minecraft app now only has the option of "play" and there is no "play on realms" to be found!  I downloaded - and paid for - the multiplayer app, but there doesn't seem to be a way to get to any realms on that app either.
95167
Fortunately, I can still login with this email address that I have lost access to.  I have been searching around here for a way to update it to the current one I use.  I have found many answers.  But they all give instructions to click on something not displayed or in one case, a page that prompts me to login via another email I no longer have the password for. I need current up to date instructions on how to change my email address or add another email-based login for this same user name that I am posting this with.
124179
I was stupid and didn't keep a backup of my Minecraft server.  Now, it crashed, biomes changed, chunks were moved around, part of my city of gone, an underground chunk was moved aboveground, is there ANY way I can fix this?    I.E. easily move chunks and change biomes.
73416
I can browse the web fine, watch YouTube, listen to music, etc. But when I try to join ANY Minecraft server, as soon as I try to make a connection, I either:  Time out my connection  or:   Sit there waiting for it to load, then disconnect  On Minecraft, it says I have good ping to the server, but then I join it and I lag out as I stated above. I can connect to other servers on other games.. but not Minecraft. I have restarted my PC and my modem, still nothing.  What can I do to solve this issue ?
38014
Okay, I try and connect to a server when I have full connection and a ping between 40-80. When I join I just fall through the world for a few seconds.  Sometimes I get the sound like you hit the floor and everything goes black but that is as far as I get. I have deleted and reinstalled Minecraft and have turned advanced OpenGl on. I'm not sure what else I can do that may help solve this problem. Also I do not get any connection issues on other games or on the internet. As far as I can tell the logs on the developer console don't give me any information either.
7942
I can't get the coordinates on my computer because it keeps changing the brightness.  I have a windows 8 Samsung, and I'm playing Minecraft version 1.6.4.
74687
When I try to log into Minecraft it connects online and my skin is there in single player but when I try to go onto a server it says bad login (If I try to login on Minecraft.net it lets me)
34468
I did one of the following and can't play PewDiePie's Tuber simulator with the progress linked to my account:   I logged out and can't login I logged out and tried to login in another device I tried to login on a second device without logging out My device broke and I can't login from another one I restarted my device / reinstalled the game and my progress didn't save   And possibly even:   I don't know how to login I forgot my login name and password   How can I fix each of these problems, and can I prevent them somehow?
100243
My full error:  Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release Error: Could not find or load main class net.minecraft.client.main.Main  I just installed Minecraft 1.8.9 on OSX El Capitan and tried to play offline since my wifi connection has some issues, and I ran into the error above.  Here is the log link:   Do you have any idea how to fix this?
75962
I have Windows Server 2016, with SQL Server 2017, and found Windows Log Application is full of Login failed messages (as follows) :     Login failed for user 'sa'. Reason: Password did not match that for the login provided. [CLIENT: ****]    Client's IP addresses are various. I don't have any maintenance plan in SQL Server     What's the problem?
32873
Whenever I start an Unturned Server, my friends can join it over Hamachi without a problem.  Same way with Magicite, we can play together with no issue.  But whenever we try to join a Minecraft Server I started it says java.net.ConnectionExeption: Connection timed out: no further information: And they can't join.    I am properly launching a Minecraft.1.8.6.exe server not just Opening it to LAN.  I had my friend host a server and I was able to connect without a problem but he says it slows down his computer too much, so we aren't able to play Minecraft together.  I have had several friends try to connect from several different computers, and they had the same problem.  my LAN Minecraft games work OK, but it is just Hamachi hosted games.  Any way to fix it?  I am assuming it'd have something to do with my Hamachi Network Adapter, or my Firewall.  I have inbound, outbound, and Gateway rules set for hamachi-2-ui.exe so I wouldn't think it would've been my firewall.    EDIT: I had my Hamachi connection set as a Public connection and Public Networks don't have the rights to inbound connections, so by setting it as a Work/Home connection fixed the problem.
62458
I want to login as root, but when I enter   sudo -s   and enter password, this message is shown: "you are not in sudoers file", and when I enter   su   and enter password, this is shown: "authentication failure".  My os has one account only. about past1 hours ago I log on as root and do some commands , when I logout , I can't login another time!
22164
I just can't login to PhpMyAdmin anymore, it says bad logins. PHP works perfectly. Please help. Thank you.  2002 Cannot log in to the MySQL server Language Log in Username: Password:  Connection for controluser as defined in your configuration failed.
56904
I switched to full screen on minecraft, the screen turned black as if it were loading it took a while so i closed minecraft and reopened it. When I logged on it gave me a program on my taskbar saying "minecraft minecraft" then when i closed the program it gave me this error message:   java(tm) platform SE binary has stopped working.    Is there a way to fix this?
71017
My Minecraft password will not work. I've reset it about 5 times and no matter what I choose as my password, it will not take it. I just made my Minecraft account today   I am entering my username correctly, and I am typing everything in the correct boxes, but it always says "Unknown username or password...". I know I am putting my username in correctly because if I try to re-register, it will not let me use my email because it's currently in use.  Could somebody explain to my why no matter what my Minecraft password is, it won't work?
424
My son got MineCraft PC for his birthday.  The account is under my e-mail and he has a name in the game (my terminology may be off as i do not play the game).  My other son would also like to play MineCraft, but have his own name (character???).  Can that be done?  It doesn't seem logical that I'd have to download 2 Minecraft games.  Please let me know how this works.