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Server 2019 - UDP Port 3343 RRS feed

  • Question

  • Morning all,

    We've recently trialled an in-place upgrade of our Cluster servers from 2016 to 2019 Datacenter edition. It all went very smooth and everything seemed to be working.

    However - a week later and suddenly the cluster is failing.

    A validation report shows that the three nodes cannot talk to each other on any network via UDP Port 3343.

    I've opened the necessary ports on the firewall - but it's still happening.

    It is generating a lot of errors (some critical) in the event log for Failover Cluster Manager.

    I'd be grateful if anyone could help or offer advice.

    Thanks

    Gareth

    Wednesday, November 6, 2019 11:16 AM

Answers

  • I mentioned that our Cluster engineer has already reply you in another thread, so that we will end up this thread.

    Thanks for your understanding!

    Daniel


    Please remember to mark the replies as answers if they help.
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    • Marked as answer by gjed Thursday, November 7, 2019 10:10 AM
    Thursday, November 7, 2019 8:27 AM
    Moderator

All replies

  • Please provide the text output of ipconfig /all for one of the nodes of the cluster (assuming all nodes are configured similarly).

    In the future, you may want to post questions about clustering to the High Availability forum located at https://social.technet.microsoft.com/Forums/en-US/home?forum=winserverClustering  That is where the clustering experts lurk, and even some of the clustering engineers show up from time to time.


    tim

    Wednesday, November 6, 2019 3:23 PM
  • Thanks Tim - I shall do so. In the meantime here is the output from an ipconfig /all

    Windows IP Configuration Host Name . . . . . . . . . . . . : ygg-hyperv1 Primary Dns Suffix . . . . . . . : school.education.swansea.sch.uk Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : school.education.swansea.sch.uk education.swansea.sch.uk Tunnel adapter Local Area Connection* 2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Failover Cluster Virtual Adapter Physical Address. . . . . . . . . : 02-C2-1D-33-44-E6 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::c36:92a3:8fd7:6258%21(Preferred) IPv4 Address. . . . . . . . . . . : 169.254.1.170(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 318903973 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-25-44-A1-24-6C-3B-E5-A6-96-CA NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Live Migration Team: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Network Adapter Multiplexor Driver #2 Physical Address. . . . . . . . . : E4-11-5B-97-29-59 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 10.0.0.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.224 Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter CSV-Cluster: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : HPE Ethernet 1Gb 4-port 366i Adapter #2 Physical Address. . . . . . . . . : 6C-3B-E5-A6-96-CA DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.0.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter iSCSI-1: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : HPE Ethernet 1Gb 4-port 366i Adapter #3 Physical Address. . . . . . . . . : 6C-3B-E5-A6-96-C8 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 10.10.10.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.224 Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter iSCSI-2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : HPE Ethernet 1Gb 2-port 361T Adapter #6 Physical Address. . . . . . . . . : E4-11-5B-97-29-58 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 30.30.30.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.224 Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter Management: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : HPE Ethernet 1Gb 2-port 361T Adapter Physical Address. . . . . . . . . : 48-DF-37-34-98-4F DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 10.154.26.19(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 IPv4 Address. . . . . . . . . . . : 10.154.26.25(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.154.26.254 DNS Servers . . . . . . . . . . . : 10.163.192.105 10.163.192.106 NetBIOS over Tcpip. . . . . . . . : Enabled

    It's so frustrating. None of the nodes can talk to each other on 3343.

    Regards

    Gareth

    Wednesday, November 6, 2019 3:58 PM
  • I mentioned that our Cluster engineer has already reply you in another thread, so that we will end up this thread.

    Thanks for your understanding!

    Daniel


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact

    • Marked as answer by gjed Thursday, November 7, 2019 10:10 AM
    Thursday, November 7, 2019 8:27 AM
    Moderator