Medeco XT Key Programmer shows the message Invalid access rule. The key cannot be encoded. - You insert a key into the programming station, and in the Key Programmer application you see the message: Invalid access rule. The key cannot be encoded . - Medeco XT 3.1 - Plugin and extension guides - Troubleshooting

Medeco XT Intelligent Key Plugin Guide 3.1.0

Product
Medeco XT
Content type
Guides > Plugin and extension guides
Version
3.1
Release
3.1.0
ft:locale
en-US
Last updated
2025-12-11

You insert a key into the programming station, and in the Key Programmer application you see the message: Invalid access rule. The key cannot be encoded.

Symptom

  1. A cardholder complains that the key does not work as expected.
  2. You insert the key into the programming station.
  3. The Key Programmer shows the message "Invalid access rule. The key cannot be encoded."
    Medeco XT Key Programmer version 3.1
  4. In Config Tool, you open the plugin role's diagnostic window, and you see the message "Incompatible access rule NameOfSchedule - A schedule can cover a maximum of one time period per day. Impacted cardholders: NameOfCardholder".

Cause

A Medeco XT key can only be assigned to a weekly or daily schedule in which the days consist of uninterrupted blocks of time. If a key is configured to use an unsupported schedule, the programming station cannot update the key. Consequently, the key's cardholder can only use the key until its validation period expires.

Solution

  • Change the schedule in the invalid access rule to either a continuous Daily or Weekly schedule.