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Article ID: 129516, created on Sep 27, 2016, last review on Jul 14, 2018

  • Applies to:
  • Odin Business Automation Standard 4.5


On attempt to access OBAS CP for Plesk subscriptions the following message is displayed:

Cannot log you in to Parallels Panel with your saved password.

The message appears approximately on every second attempt to log in.

Also, sometimes Plesk Domain subscriptions are loading slowly, some of their tabs are not displayed.


Such issues can be caused by incorrect configuration of networks settings, firewall or routing rules.

The following messages can be found in hspc.log:

[2016/09/14 08:12:41] [DEBUG] [7979] [HSPC::Logger::sw_trace] TRACE [07]: . . . . . . +> HSPC::MT::Plesk::PleskGate->__send_request_to_agent ()
[2016/09/14 08:12:41] [DEBUG] [7979] [HSPC::MT::Plesk::PleskGate::__send_request_to_agent] Sending packet to : 8443 : /enterprise/control/agent.php
[2016/09/14 08:12:41] [DEBUG] [7979] [HSPC::MT::Plesk::PleskGate::__send_request_to_agent] Final Packet=<packet version=""><server><get_protos/></server></packet>
[2016/09/14 08:13:44] [DEBUG] [7979] [HSPC::MT::Plesk::PleskGate::__send_request_to_agent] REPLY_DATA=
[2016/09/14 08:13:44] [INFO] [7979] [HSPC::MT::Plesk::PleskGate::__send_request_to_agent] Error: empty data received from PleskAgent.


Check connection between OBAS and the affected Plesk node by the curl utility multiple times:

  1. create an XML file with a test xml-api request:

    #cat req.xml 
     <packet version=""><server><get_protos/></server></packet>
  2. send the xml-api request several times:

    curl -v -k -d @req.xml  -H "Content-type: text/xml" -H "HTTP_PRETTY_PRINT: TRUE" -H "HTTP_AUTH_LOGIN: admin" -H "HTTP_AUTH_PASSWD: <plesk_admin_password>"

    where <plesk_admin_password> is the Plesk administrator password.

The error response looks like:

    curl -v -k -d @req.xml  -H "Content-type: text/xml" -H "HTTP_PRETTY_PRINT: TRUE" -H "HTTP_AUTH_LOGIN: admin" -H "HTTP_AUTH_PASSWD: <plesk_admin_password>"
    * About to connect() to port 8443 (#0)
    *   Trying Connection timed out
    * couldn't connect to host
    * Closing connection #0
    curl: (7) couldn't connect to host

If the error is intermittent, please check and fix incorrect configuration of networks settings, firewall or routing rules.

See also

Plesk nodes are Not Available after OBAS server migration

Valid Plesk node has status "Not available" in OBAS

Available Plesk node is in Unregistered state

Plesk Clients became Absent on Plesk

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