RPC Server unavailable

RPC Server unavailable

I am just new to ELZ and I am looking to find a way to export a list of all devices that are in a status on the manage device window of not Success but i am not sure how to do this. 

I would like this list as the help states that it could be the firewall blocking this and I would like tio send this list to IT and get the firewall issue resolved.

Please let me know how or if this can be completed

Thank you

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