![]() ![]() Creating a new 2 node failover cluster or adding a new node to an existing cluster fails with error "RPC_S_CALL_FAILED" (The remote procedure call failed).Server Manager and other administrative tools connect or manage remote computers.Cluster creation fails with RPC error 0x800706BE (where hex error 0圆BE = decimal error 17232 = symbolic error RPC_S_CALL_FAILED = friendly error "the remote procedure call failed" ).Event ID 30620 is logged in the File and Storage Services console.Shared folders on NAS servers or remote Windows computers cannot be accessed, including admins shares like \%server%c$ or \%server%ipc$.Operational failures and errors caused by large MTU values include but are not limited to: Regardless of what make and model NIC you have, we recommend that you run two simple NETSH and PING commands to verify that the network drivers connected to your networks are using MTU values compatible with the underlying network. For Windows Server 2008 R2 this scenario only occurs if the NCU software was never installed or is removed. In some rare cases Windows Server 2008 R2 is also affected. Support cases involving the following NICS have been opened but other make and model NICs could be impacted.Īffected NIC driver versions for the HP-branded 1 GB Broadcom NICs start with version 7.4.X.X. Software developers have been known to configure > 1500 byte MTUs as was the case when several drivers for HP-branded Broadcom NICs slipped out the door with a default MTU of 1514 bytes. Larger MTU support (jumbo frames) may be configured when using overlay technologies like Hyper-V network virtualization and network operators must make sure that all the networking equipment like switches and routers can support larger MTUs. The largest packet allowed by Ethernet networking layer is 1500 bytes.Maximum Transfer Unit (MTU) specifies the maximum packet size for a given network interface.Each network media type has a maximum frame size.As this blog post will illustrate, connectivity failures caused by this condition can cause an array of operational failures as simple a file copy to RPC connectivity disruptions used by numerous management and distributed operations on Windows computers. Problems arise when such large packets cannot be passed by the underlying network infrastructure. Greg Jaworski here to make readers aware of a support issue where network interface drivers may set an overly large MTU value of 1514 bytes. ![]() First published on TechNet on Dec 01, 2014 ![]()
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