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| 1 | +--- |
| 2 | +title: Status Code 0x6bf or 0xc002001c |
| 3 | +description: Helps resolve an issue in which you can't join a domain with status code 0x32. This issue is related to the failure to establish an SMB session to a DC. |
| 4 | +ms.date: 04/18/2025 |
| 5 | +manager: dcscontentpm |
| 6 | +audience: itpro |
| 7 | +ms.topic: troubleshooting |
| 8 | +ms.reviewer: kaushika, raviks, herbertm, dennhu, eriw, v-lianna |
| 9 | +ms.custom: |
| 10 | +- sap:active directory\on-premises active directory domain join |
| 11 | +- pcy:WinComm Directory Services |
| 12 | +--- |
| 13 | +# Status code 0x6bf or 0xc002001c: The remote procedure call failed and did not execute |
| 14 | + |
| 15 | +This article provides troubleshooting steps for resolving the remote procedure call (RPC) status code 0x6bf or 0xc002001c when you join a workgroup computer to a domain. |
| 16 | + |
| 17 | +When you join a workgroup computer to a domain, you receive the following error message: |
| 18 | + |
| 19 | +> The remote procedure call failed and did not execute. |
| 20 | +
|
| 21 | +When you check the **NetSetup.log** file, you see the following entries. For example: |
| 22 | + |
| 23 | +```output |
| 24 | +NetpGetLsaHandle: LsaOpenPolicy on \\<DC name>.<domain>.<tld> failed: 0xc002001c |
| 25 | +NetpGetLsaPrimaryDomain: status: 0xc002001c |
| 26 | +NetpJoinDomain: initiaing a rollback due to earlier errors |
| 27 | +NetpJoinDomain: status of disconnecting from ‘\\<DC name>.<domain>.<tld>’: 0x0 |
| 28 | +NetpDoDomainJoin: status: 0x6bf |
| 29 | +``` |
| 30 | + |
| 31 | +## Network device rejects network packets |
| 32 | + |
| 33 | +This error occurs when a network device (router, firewall, or virtual private network (VPN) device) rejects network packets between the client being joined and the domain controller (DC). |
| 34 | + |
| 35 | +## Verify and test the connection |
| 36 | + |
| 37 | +To troubleshoot this issue, use the following steps: |
| 38 | + |
| 39 | +1. Verify the connectivity between the client being joined and the target DC over the required ports and protocols. |
| 40 | + |
| 41 | +|Server port |Service/Protocol | |
| 42 | +|---------|---------| |
| 43 | +|Transmission Control Protocol (TCP) 135 |RPC Endpoint Mapper | |
| 44 | +|TCP 49152 - 65535 |RPC (dynamic ports allocation) | |
| 45 | +|TCP 445 |Server Message Block (SMB) | |
| 46 | +|User Datagram Protocol (UDP)/TCP 389 |Lightweight Directory Access Protocol (LDAP) | |
| 47 | + |
| 48 | +Refer to the list of required ports in [How to configure a firewall for Active Directory domains and trusts](config-firewall-for-ad-domains-and-trusts.md). |
| 49 | + |
| 50 | +2. Test the connection between the client and the DC by running the following cmdlet: |
| 51 | + |
| 52 | +```powershell |
| 53 | +Test-NetConnection <IP_address_of_the_DC> -Port 389 |
| 54 | +``` |
| 55 | + |
| 56 | +The expected output is: |
| 57 | + |
| 58 | +```output |
| 59 | +ComputerName : <ComputerName> |
| 60 | +RemoteAddress : <RemoteAddress> |
| 61 | +RemotePort : 389 |
| 62 | +InterfaceAlias : Ethernet 2 |
| 63 | +SourceAddress : <SourceAddress> |
| 64 | +TcpTestSucceeded : True |
| 65 | +``` |
| 66 | + |
| 67 | +The output indicates that the LDAP port TCP 389 is open between the client and the DC. |
| 68 | + |
| 69 | +3. Identify if a port (TCP/UDP) is blocked on a DC by using the [PortQry](https://www.microsoft.com/download/details.aspx?id=17148) command-line tool. For more information, see [Using the PortQry command-line tool](../networking/portqry-command-line-port-scanner-v2.md). |
| 70 | + |
| 71 | +Here are some example syntaxes: |
| 72 | + |
| 73 | +- `portqry -n <problem_server> -e 135` |
| 74 | +- `portqry -n <problem_server> -e 445` |
| 75 | +- `portqry -n <problem_server> -e 389` |
| 76 | +- `portqry -n <problem_server> -p UDP -e 389` |
| 77 | +- `portqry -n <problem_server> -r 49152:65535` |
| 78 | + |
| 79 | +Here are some example outputs: |
| 80 | + |
| 81 | +If the connection to TCP 135 port on the DC is blocked, you see the following output: |
| 82 | + |
| 83 | +```output |
| 84 | +C:\PortQryV2>portqry -n dc2 -e 135 |
| 85 | +Querying target system called: |
| 86 | + Dc2 |
| 87 | +Attempting to resolve name to IP address… |
| 88 | +Name resolved to 192.168.1.2 |
| 89 | +querying... |
| 90 | +TCP port 135 <epmap service>: FILTERED |
| 91 | +``` |
| 92 | + |
| 93 | +If the connection to TCP 389 port on the DC is successful, you see the following output: |
| 94 | + |
| 95 | +```output |
| 96 | +C:\PortQryV2>portqry -n dc2 -e 389 |
| 97 | +Querying target system called: |
| 98 | + Dc2 |
| 99 | +Attempting to resolve name to IP address… |
| 100 | +Name resolved to 192.168.1.2 |
| 101 | +querying... |
| 102 | +TCP port 389 <ldap service>: LISTENING |
| 103 | +``` |
| 104 | + |
| 105 | +To determine if there're any further network connectivity problems, collect a network monitor trace if necessary when reproducing the issue. |
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