<div>
Is there a firewall between the Windows server 2008 r2 and the Domain Controller? &nbsp;Some ports may be blocked and not allowing authentication.
</div>


Is there a firewall between the Windows server 2008 r2 and the Domain Controller?  Some ports may be blocked and not allowing authentication.

<div>
Hi Anthony,<br />
<br />
No there isn't have you experienced this or could there be another issue<br />
<br />
Many thanks<br />
<br />
Mark
</div>


Hi Anthony,

No there isn't have you experienced this or could there be another issue

Many thanks

Mark

<div>
Was the issues resolved? &nbsp;Did you find out what was the cause?
</div>


Was the issues resolved?  Did you find out what was the cause?

<div>
HI Anthony,<br />
The issue was because the NTP server settings were not setup correctly?<br />
Thank you for your response though <br />
Mark
</div>


HI Anthony,
The issue was because the NTP server settings were not setup correctly?
Thank you for your response though
Mark

<div>
<div class="content wysiwyg-content">
Dear All,<br />
I received this error message from a windows server 2008 r2 it is used a virtual server <br />
can someone help?<br />
Thank you in advance
</div>
</div>


Dear All,
I received this error message from a windows server 2008 r2 it is used a virtual server 
can someone help?
Thank you in advance

The processing of Group Policy failed. Windows could not authenticate to the Active Directory service on a domain controller. (LDAP Bind function call failed). Look in the details tab for error code a

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Microsoft Virtual Server was a virtualization solution that facilitated the creation of virtual machines on the Windows XP, Windows Vista and Windows Server 2003 operating systems. Virtual machines are created and managed through a web-based interface that relies on Internet Information Services (IIS) or through a Windows client application tool called VMRCplus. Features included Linux guest operating system support, Virtual Disk Precompactor, symmetric multiprocessing (SMP), x64 host operating system support, the ability to mount virtual hard drives on the host machine and additional operating systems support, including Windows Vista, and a volume shadow copy writer.