how to fix GUI is not working in f5 BIG-IP

 

Workaround

To work around this issue, close the dashboard window when it is not in use.

To recover from this issue, restart the httpd and tomcat services. To do so, perform  the following procedure:

Impact of workaround: The BIG-IP Configuration utility is not accessible while services are restarting.

1. Log in to the command line.
2. Type the following command to restart the httpd daemon:

   bigstart restart httpd

3. Type the following command to restart the tomcat daemon:

   bigstart restart tomcat or in old BIG-IP versions bigstart restart tomcat4

Source: SOL14552 – Leaving the BIG-IP dashboard page running will result in an rtstats memory leak

how to fix “The User Profile Service failed the logon” error message

Source: You receive a “The User Profile Service failed the logon” error message

1. try restarting your computer and logging on with your user account again to resolve the issue.
2. If you restart your computer and it does not resolve this issue, use the following methods to resolve this issue.
3. Click Start, type regedit in the Search box, and then press ENTER.
4. In Registry Editor, locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
5. In the navigation pane, locate the folder that begins with S-1-5 (SID key) followed by a long number.
6. Click each S-1-5 folder, locate the ProfileImagePath entry in the details pane, and then double-click to make sure that this is the user account profile that has the error.
7. If you have two folders starting with S-1-5 followed by some long numbers and one of them ended with .bak, you have to rename the .bak folder. To do this, follow these steps:
   1. Right-click the folder without .bak, and then click Rename. Type .ba, and then press ENTER.
   2. Right-click the folder that is named .bak, and then click Rename. Remove .bak at the end of the folder name, and then press ENTER.
   3. Right-click the folder that is named .ba, and then click Rename. Change the .ba to .bak at the end of the folder name, and then press ENTER.
8. If you have only one folder starting with S-1-5 that is followed by long numbers and ends with .bak. Right-click the folder, and then click Rename. Remove .bak at the end of the folder name, and then press ENTER.
9. Click the folder without .bak in the details pane, double-click RefCount, type 0, and then click OK.
10. Click the folder without .bak, in the details pane, double-click State, type 0, and then click OK.
11. Close Registry Editor.
12. Restart the computer.
13. Log on again with your account.