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Another common error is a misconfiguration in the poller server. The poller need to be able to generate the registry, a document with discovery information. For this, it needs to have defined both properties opha_url_base and opha_hostname (Or both, can be null if you are not using https). When the registry cannot be created you can see this error in opHA logs:
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Also, the property auth_token_key should be set up in the poller configuration.
Configuring a poller over https
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But, we will not be able to query the poller as the poller will report it's url as http: . To force the master to use HTTPS to the poller we must have the configuration item opha_url_base set to https otherwise, it won't work.
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