HELP HELP with event ID 8003 windows server 2003
This message keeps appearing in the event logs of Windows server 2003 server. Microsoft has provided a fix for Windows server 2000. Is there a fix or way to stop the error in server 2003 The master browser has received a server announcement from the computer xxxxxxxxxx that believes that it is the master browser for the domain on transport NetBT_Tcpip_{6E5D7BDE-77DB. The master browser is stopping or an election is being forced. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 00 00 00 00 03 00 4e 00 ......N. 0008: 00 00 00 00 43 1f 00 c0 ....C.. 0010: 00 00 00 00 00 00 00 00 ........ 0018: a4 00 00 00 00 00 00 00 ....... 0020: 00 00 00 00 00 00 00 00 ........ Regards,
July 25th, 2012 5:00pm

This means the true master browser, possibly this server you're seeing the event on, is supposed to be the master, but for some reason it may be dropping its network connection. The only time you see a workstation, and assuming "computer xxxxxxxxxx " in your post is a workstation, is when a request to the Browse Master was initiated (such as clicking on Network Neighborhood), and the Master Browser is not responding. Here's more info on how to troubleshoot where the culprit is: . === Troublshooting the Computer browser service Keep in mind, each subnet has it's own master browser, and they work together with the WINS service using WINS, to enumerate an infrastructure wide browse list. If not using WINS, it uses broadcasts, but if you are in a multi-subnetted environment, and you want full browsing capabilities, it's suggested to use WINS. We have to keep in mind with troubleshooting the browser service, there is a time period you have to wait for the list to fully enumerate and become available on the master. Good example is when a server is shut off on a segment, and the workstations kick in, or the server is rebooted, wins the election, and begins a new cycle to enumerate the browse list from WINS and/or broadcasts. This can take a minimal of 12 minutes, upwards to the 48-minute full propogation cycle in a multiple-segment domain environment. And the default settings out-of-the-box, work fine, otherwise you'll find yourself trying to change reg entries on multiple servers. If you find workstations are becoming masters, are there any server operating systems on their subnets? If not, then a workstation will win as a master. If there is a server OS, and it's not multihomed, especially if a DC on the subnet and it's not multihomed (multihoming a DC is a really bad idea), then it should win, unless there's a problem with the machine itself, such as some sort of security setting in your antivirus blocking traffic, or firewall blocking traffic on it. Make sure the Computer Browser service is Started. Make sure NetBIOS is enabled on everything. On Windows 2003 and 2000, install the Support Tools (from the Windows CDROM) in order to have the "browstat" utility available. In Windows 2008 and newer, the utility is already installed as part of the operating system files. Note: A multihomed DC is a major cause of browser problems. Multhoming DCs is not recommended for multiple reasons, including a "Multihomed Browser" scenario. More info regarding multihoming and why not to do it: Multihomed DCs (with more than one unteamed NIC or multiple IPs) with DNS, RRAS, iSCSI, and/or PPPoE adapters - A multihomed DC is not a recommended configuration, however there are ways to configure such a DC to work properly. http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx If there are any antivirus software, it could block browser traffic. This of course is all assuming that the Computer browser service is running. Run a browstat status to see who the browse master is for the segment. If it's not the PDC Emulator, and some other device won the election, that can cause a problem. To check current status of the browse service on the domain, run: browstat status You should get a response similar to: Browsing is active on domain. Master browser name is: <serverName> Note, the machine that is the current master browser will either be, depending if the machine type exists on the segment: the PDC Emulator, a replica DC on the segment, a member server, joined workstation, or workgroup member, Unix or Linux with SAMBA, etc. If you find a device is winning the election, then we need to disable that ability in the device. If there are no features for that, contact their support department, or put the device behind it's own subnet or VLAN to prevent it from winning the election on the production network. To find the current browse master on a segment, you'll have to find the TransportID: First run: browstat getmaster \device\netbt_el59x1 <domainname> It will error out because the "netbt_el59x1" probably doesn't exist, and will respond with the transports currently bound to the browser. Copy and paste the transport that does show up into your next command: browstat getmaster \Device\NetBT_Tcpip_{C2055954-4F86-446F-ACBA-E00BE731C3FB} <domainname> Force an election by running: browstat elect \device\netbt_ieepro1 <domainname> Then check the event logs to see which machine won the election. If it's a device, such as I've found that Linux/Unix with SAMBA, or devices such as a Seagate NAS, may win the election and cause browsing havoc within an environment and get that familiar, but unwanting "Access Denied" when trying to browse. Troubleshooting the Microsoft Browser Services: http://support.microsoft.com/kb/188305 . The above is outlined & copied/pasted from my blog, which has additional information: WINS NetBIOS, Browser Service, Disabling NetBIOS, & Direct Hosted SMB (DirectSMB). Troubleshooting the browser service. The DNS Client Side Resolver algorithm. Client side resolution process chart. If one DC or DNS goes down, does a client logon to another DC? DNS Forwarders Algorithm and multiple DNS addresses (if you've configured more than one forwarders) Client side resolution process chart Published by Ace Fekay, MCT, MVP DS on Nov 29, 2009 at 10:28 PM 1764 1 http://msmvps.com/blogs/acefekay/archive/2009/11/29/dns-wins-netbios-amp-the-client-side-resolver-browser-service-disabling-netbios-direct-hosted-smb-directsmb-if-one-dc-is-down-does-a-client-logon-to-another-dc-and-dns-forwarders-algorithm.aspx Ace Fekay MVP, MCT, MCITP EA, MCTS Windows 2008/R2, Exchange 2007 & Exchange 2010, Exchange 2010 EA, MCSE & MCSA 2003/2000, MCSA Messaging 2003 Microsoft Certified Trainer Microsoft MVP - Directory Services Complete List of Technical Blogs: http://www.delawarecountycomputerconsulting.com/technicalblogs.php This post is provided AS-IS with no warranties or guarantees and confers no rights.
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July 25th, 2012 5:02pm

This means the true master browser, possibly this server you're seeing the event on, is supposed to be the master, but for some reason it may be dropping its network connection. The only time you see a workstation, and assuming "computer xxxxxxxxxx " in your post is a workstation, is when a request to the Browse Master was initiated (such as clicking on Network Neighborhood), and the Master Browser is not responding. Here's more info on how to troubleshoot where the culprit is: . === Troublshooting the Computer browser service Keep in mind, each subnet has it's own master browser, and they work together with the WINS service using WINS, to enumerate an infrastructure wide browse list. If not using WINS, it uses broadcasts, but if you are in a multi-subnetted environment, and you want full browsing capabilities, it's suggested to use WINS. We have to keep in mind with troubleshooting the browser service, there is a time period you have to wait for the list to fully enumerate and become available on the master. Good example is when a server is shut off on a segment, and the workstations kick in, or the server is rebooted, wins the election, and begins a new cycle to enumerate the browse list from WINS and/or broadcasts. This can take a minimal of 12 minutes, upwards to the 48-minute full propogation cycle in a multiple-segment domain environment. And the default settings out-of-the-box, work fine, otherwise you'll find yourself trying to change reg entries on multiple servers. If you find workstations are becoming masters, are there any server operating systems on their subnets? If not, then a workstation will win as a master. If there is a server OS, and it's not multihomed, especially if a DC on the subnet and it's not multihomed (multihoming a DC is a really bad idea), then it should win, unless there's a problem with the machine itself, such as some sort of security setting in your antivirus blocking traffic, or firewall blocking traffic on it. Make sure the Computer Browser service is Started. Make sure NetBIOS is enabled on everything. On Windows 2003 and 2000, install the Support Tools (from the Windows CDROM) in order to have the "browstat" utility available. In Windows 2008 and newer, the utility is already installed as part of the operating system files. Note: A multihomed DC is a major cause of browser problems. Multhoming DCs is not recommended for multiple reasons, including a "Multihomed Browser" scenario. More info regarding multihoming and why not to do it: Multihomed DCs (with more than one unteamed NIC or multiple IPs) with DNS, RRAS, iSCSI, and/or PPPoE adapters - A multihomed DC is not a recommended configuration, however there are ways to configure such a DC to work properly. http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx If there are any antivirus software, it could block browser traffic. This of course is all assuming that the Computer browser service is running. Run a browstat status to see who the browse master is for the segment. If it's not the PDC Emulator, and some other device won the election, that can cause a problem. To check current status of the browse service on the domain, run: browstat status You should get a response similar to: Browsing is active on domain. Master browser name is: <serverName> Note, the machine that is the current master browser will either be, depending if the machine type exists on the segment: the PDC Emulator, a replica DC on the segment, a member server, joined workstation, or workgroup member, Unix or Linux with SAMBA, etc. If you find a device is winning the election, then we need to disable that ability in the device. If there are no features for that, contact their support department, or put the device behind it's own subnet or VLAN to prevent it from winning the election on the production network. To find the current browse master on a segment, you'll have to find the TransportID: First run: browstat getmaster \device\netbt_el59x1 <domainname> It will error out because the "netbt_el59x1" probably doesn't exist, and will respond with the transports currently bound to the browser. Copy and paste the transport that does show up into your next command: browstat getmaster \Device\NetBT_Tcpip_{C2055954-4F86-446F-ACBA-E00BE731C3FB} <domainname> Force an election by running: browstat elect \device\netbt_ieepro1 <domainname> Then check the event logs to see which machine won the election. If it's a device, such as I've found that Linux/Unix with SAMBA, or devices such as a Seagate NAS, may win the election and cause browsing havoc within an environment and get that familiar, but unwanting "Access Denied" when trying to browse. Troubleshooting the Microsoft Browser Services: http://support.microsoft.com/kb/188305 . The above is outlined & copied/pasted from my blog, which has additional information: WINS NetBIOS, Browser Service, Disabling NetBIOS, & Direct Hosted SMB (DirectSMB). Troubleshooting the browser service. The DNS Client Side Resolver algorithm. Client side resolution process chart. If one DC or DNS goes down, does a client logon to another DC? DNS Forwarders Algorithm and multiple DNS addresses (if you've configured more than one forwarders) Client side resolution process chart Published by Ace Fekay, MCT, MVP DS on Nov 29, 2009 at 10:28 PM 1764 1 http://msmvps.com/blogs/acefekay/archive/2009/11/29/dns-wins-netbios-amp-the-client-side-resolver-browser-service-disabling-netbios-direct-hosted-smb-directsmb-if-one-dc-is-down-does-a-client-logon-to-another-dc-and-dns-forwarders-algorithm.aspx Ace Fekay MVP, MCT, MCITP EA, MCTS Windows 2008/R2, Exchange 2007 & Exchange 2010, Exchange 2010 EA, MCSE & MCSA 2003/2000, MCSA Messaging 2003 Microsoft Certified Trainer Microsoft MVP - Directory Services Complete List of Technical Blogs: http://www.delawarecountycomputerconsulting.com/technicalblogs.php This post is provided AS-IS with no warranties or guarantees and confers no rights.
July 25th, 2012 5:06pm

This message keeps appearing in the event logs of Windows server 2003 server. Microsoft has provided a fix for Windows server 2000. Is there a fix or way to stop the error in server 2003 The master browser has received a server announcement from the computer xxxxxxxxxx that believes that it is the master browser for the domain on transport NetBT_Tcpip_{6E5D7BDE-77DB. The master browser is stopping or an election is being forced. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 00 00 00 00 03 00 4e 00 ......N. 0008: 00 00 00 00 43 1f 00 c0 ....C.. 0010: 00 00 00 00 00 00 00 00 ........ 0018: a4 00 00 00 00 00 00 00 ....... 0020: 00 00 00 00 00 00 00 00 ........ Regards, Hi, This kind of issue occurs when The subnet mask of the Windows client computer is incorrect or is different from the primary domain controller. So I suggest you check this link once to troubleshoot Event ID 8003http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Windows%20Operating%20System&ProdVer=5.0&EvtID=8003&EvtSrc=Browser&LCID=1033Regards, Ravikumar P
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July 25th, 2012 5:15pm

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