Lenel Access Reader Distance Issue

Trying to find a solution to an "Invalid Card Format " issue using the Lenel Access control system. Issue is a Distance issue for the Reader data. In the past we have used the Cypress extender modules, 1200 series. We are using the Cypress 1300 reader extenders here with MR-5 Mag stripe reader. Have tried different setups per manufactuer recommendations with no luck. Has anyone else used...

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