Operation Cannot Be Executed

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Message text:Requested operation cannot be completed because the Device Server is in the serial programming mode or the network programming session is in progress


May appear in:Auto-discovery and  address bookaccess modes; Settings, Upgrade, InitializeChange IPfunctions




When you click Settings, Upgrade, Initialize, or Change IP button the DS Manager needs to login before it can execute requested operation (see authentication). Login is required even if the login password is not set and is only accepted if no programming with the same priority level is already in progress.  


Programmer's info:


Before executing any of the operations listed above the DS Manager attempts to login using the Login (L) command. This message is displayed when the response to this command is Rejected (R).