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Disabling NTLM broke communication between Hyper-V nodes (WS 2022)

Guest absdpt

By Guest absdpt
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Guest absdpt

Guest absdpt

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Hello all,I ask your help to identify the issue here.Issue: Disabling NTLM broke communication between Hyper-V nodes (WS 2022) Installed a new failover cluster, 2 Hyper-V nodes running on Windows Server 2022 with Cluster Shared Volumes. Migrated all Roles from old cluster (WS 2019)….and…so far so good.Note: Customer has NTLM disabled at Domain level, everything was working fine on old 2019 cluster. After some weeks (+-2.5/3 weeks), VMs lost communication with their disks. After checking we concluded that NODE1 can't reach Cluster Shared Volumes that has NODE2 as owner and NODE2 can't

 

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