SharePoint 2013 Preparation tool stuck in configuring Application Server Role, Web Server IIS Role

I'm trying to install the Prerequisites by running the prerequisiteinstaller.exe but I'm stuck in this Application Server Role, Web Server (IIS) Role.




To solve this issue just close the Server Manager Windows the tool start the other configuration.

SharePoint 2013:Sorry, something went wrong Updates are currently disallowed on GET requests. To allow updates on a GET, set the 'AllowUnsafeUpdates' property on SPWeb

Resolution via SharePoint 2010 management shell

Launch shell and and add these lines:

$w = get-spwebapplication http://yourwebapplication

$w.HttpThrottleSettings

$w.Update()

Sharepoint Error:"Access denied by Business Data Connectivity. Correlation ID:xxxxx-xxxx-xxxx-xxxx-xxxxxxxxx"

 When Create External Content Type Using SQL and  try to open List from site and you get the following error:

"Access denied by Business Data Connectivity. Correlation ID:xxxxx-xxxx-xxxx-xxxx-xxxxxxxxx".

to solve this error do the follwing steps:

1- Open Sharepoint central administration

2- 

Sharepoint:The password supplied with the username Domain\username was not correct. Verify that it was entered correctly and try again

This error occurs if there has been change of password of the account and same has not been updated in SharePoint.

To solve:

1- Log in as Administrator

2- Open Command prompt

3- Write the following

cd C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN

stsadm -o updatefarmcredentials -userlogin Domain\UserName -password newpassword

4- if get the following message "Operation completed successfully" Now reset IIS, then the problem solved and you will be able to create web application.

http://cloudytech.blogspot.com/2013/05/the-password-supplied-with-username.html