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DMVPN-%NHRP-3-PAKREPLY:Receive Registration Reply packet with error

I am constantly receiving this error message on my spoke %NHRP-3-PAKREPLY: Receive Registration Reply packet with error - unique address registered already(14)...Any idea how to fix this issue?

My spoke is registered

x.x.x.x/32 via x.x.x.x, Tunnel1 created 00:23:13, never expire

Type: static, Flags: used

NBMA address: x.x.x.x

x.x.x.x/32 via x.x.x.x, Tunnel1 created 00:23:13, never expire

Type: static, Flags: used

NBMA address: x.x.x.x

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Re: DMVPN-%NHRP-3-PAKREPLY:Receive Registration Reply packet wit

%NHRP-3-PAKREPLY: Receive Resolution Reply packet with error - insufficient resources(5) and data packets that should be taking a direct spoke-spoke tunnel are taking the spoke-hub-spoke path.

Conditions: This symptom has been observed in a DMVPN Phase 3 Network when building or refreshing a spoke-spoke tunnel.

Workaround: See the Further Problem Description for how to manually see and clear the problem. The fix for CSCsd74859 "DMVPN Phase 3: Network NHRP mappings are not refreshed when being used" will help reduce the occurrence.

Further Problem Description: Use the show ip nhrp command to look for NHRP mapping entries that are covered by an NHRP network mapping entry in the table.

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