Auto Updates on one computer not others?

[official ninja]

I have a total of 8 computers in my home. All run malwarebytes. Of these 8 only 1 of them updates by itself. All the others might tell me the database is out of date by 10 days or something like this. Most of these computers are running Windows 7 while a couple still run Windows XP. The 1 that does update is running Windows 7. For the life of me I can't figure out what is different with the one computer that it works like it should. All have the options set to download updates if available. How can I fix these others to work properly?

[official ninja]

bump.

So it is just me. Everyone else gets regular updates with no issues on all their computers?

[DarkSnakeKobra]

Hi.

Do each of these computers have a separate license?

Make sure the following files are excluded from your antivirus/firewall.

Windows XP

C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbamgui.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbamservice.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbam.dll
C:\Program Files\Malwarebytes' Anti-Malware\mbamext.dll
C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\rules.ref
C:\Windows\System32\drivers\mbam.sys
C:\Windows\System32\drivers\mbamswissarmy.sys

Windows Vista/7

C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbamgui.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbamservice.exe
C:\Program Files\Malwarebytes' Anti-Malware\mbam.dll
C:\Program Files\Malwarebytes' Anti-Malware\mbamext.dll
C:\ProgramData\Malwarebytes\Malwarebytes' Anti-Malware\rules.ref
C:\Windows\System32\drivers\mbam.sys
C:\Windows\System32\drivers\mbamswissarmy.sys

Windows Vista/7 64 Bit

C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbam.exe
C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamgui.exe
C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamservice.exe
C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbam.dll
C:\Program Files (x86)\Malwarebytes' Anti-Malware\mbamext.dll
C:\ProgramData\Malwarebytes\Malwarebytes' Anti-Malware\rules.ref
C:\Windows\System32\drivers\mbam.sys
C:\Windows\SysWoW64\drivers\mbamswissarmy.sys