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Question
Saturday, April 30, 2016 10:22 AM
Dear all
my DHCP Server Stops responding after few days of working, i need to reboot the server then it act normal.
after checking the DHCP Events log, it appeared an error called "The DHCP Service failed to see a directory server for authorization"
NOTE: my DHCP Server is the same server of DC and DNS.
please anyone advice....
Thank You.
All replies (6)
Sunday, May 1, 2016 9:04 PM ✅Answered | 1 vote
Please check first your server IP settings. You can see the recommendations I have shared here: http://www.ahmedmalek.com/web/fr/articles.asp?artid=23
Probably the server is unable to locate itself as a DC.
This posting is provided AS IS with no warranties or guarantees , and confers no rights.
Ahmed MALEK
Saturday, April 30, 2016 3:30 PM
Hi
You can also check with dhcp event tool for details about issue,
DHCP Server Events Tool ; https://blogs.technet.microsoft.com/teamdhcp/2009/03/20/dhcp-server-events-tool/
Otherhand please share "ipconfig /all" and "Netsh dhcp show server" results...
This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur
Tuesday, May 3, 2016 5:19 AM
Hi faisal997,
In addition to the above, is the DC multihomed? It is not recommended to make DC multihomed, it may cause some odd issues.
Best Regards,
Anne
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected].
Friday, May 6, 2016 1:28 PM
Hi faisal997,
In addition to the above, is the DC multihomed? It is not recommended to make DC multihomed, it may cause some odd issues.
Best Regards,
Anne
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected].
i dont have multihomed server configured, please advice about how to do and what is its benefits.
Thank You
Saturday, May 7, 2016 7:43 PM
Hi
You can also check with dhcp event tool for details about issue,
DHCP Server Events Tool ; https://blogs.technet.microsoft.com/teamdhcp/2009/03/20/dhcp-server-events-tool/
Otherhand please share "ipconfig /all" and "Netsh dhcp show server" results...
This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur
Hi
You can also check with dhcp event tool for details about issue,
DHCP Server Events Tool ; https://blogs.technet.microsoft.com/teamdhcp/2009/03/20/dhcp-server-events-tool/
Otherhand please share "ipconfig /all" and "Netsh dhcp show server" results...
This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur
C:\Users\Administrator>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : RRA-DC
Primary Dns Suffix . . . . . . . : retajalnahdi.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : retajalnahdi.com
Ethernet adapter vEthernet (HP Ethernet 1Gb 4-port 331i Adapter - Virtual Swit
):
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter #2
Physical Address. . . . . . . . . : 3C-A8-2A-23-96-E8
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.20.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.20.1.254
DNS Servers . . . . . . . . . . . : 10.20.1.5
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Embedded LOM 1 Port 4:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #4
Physical Address. . . . . . . . . : 3C-A8-2A-23-96-EB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Embedded LOM 1 Port 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #3
Physical Address. . . . . . . . . : 3C-A8-2A-23-96-EA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Embedded LOM 1 Port 2:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #2
Physical Address. . . . . . . . . : 3C-A8-2A-23-96-E9
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter isatap.{50B2206A-7BCB-40AF-9123-8E86B303EF93}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter isatap.{88D1A461-2F22-4370-9214-650EBB48133B}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter isatap.{044B2809-F1B4-47BB-AB2B-E390A26BB9FD}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Tunnel adapter isatap.{DDB289B1-C891-4603-8817-6A74DB1D1B9E}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
C:\Users\Administrator>Netsh dhcp show server
1 Servers were found in the directory service:
Server [rra-dc.retajalnahdi.com] Address [10.20.1.5] Ds location: cn=rra
-dc.retajalnahdi.com
Command complete successfully
Sunday, May 8, 2016 7:03 PM
Results seems to be OK,if possiible just migrate dhcp role on a member server.then configure dhcp failover cluster for redundancy.
Check for dhcp migration ; https://community.spiceworks.com/how_to/23549-exporting-and-importing-dhcp-database-on-windows-server
Dhcp Failover cluster ; https://technet.microsoft.com/en-us/library/hh831385(v=ws.11).aspx
This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur