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Failed to exit Loopback command

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Jstone03

IS-IT--Management
Sep 7, 2010
2
US
I seem to have a loopback on one of my Serial interfaces and can not remove it. when I type no loopback l, dte. or remote I get this back. "Failed to exit loopback test - test still in progress
% Service module configuration command failed: LOCK OBTAIN TIMEOUT." is this a loopback from the t-1 carrier or within the router if router what can I do to remove?
 
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