While adding a MS SQL database node at PCP > WebHosting Plesk > Shared Database Servers > New, the following warning is displayed:

Unable to connect to the database server. Continue anyway? 

Details can be found in /var/log/shm-dispatcher/dispatcher.log on WebHosting Plesk dispatcher node:

[2019-10-08 20:35:08] doctrine.DEBUG: Execution context [POST (ID: 25eaa5d88d94d52381ef5c16622d7139b4ea7679)]
SELECT AS id1, t0.uid AS uid2, t0.communication_ip AS communication_ip3, t0.public_hostname AS public_hostname4, t0.version AS version5, t0.status AS status6, t0.os FROM node t0 WHERE t0.os IN ('windows', 'linux')
[2019-10-08 20:35:08] dispatcher_requests.DEBUG: Execution context [POST (ID: 25eaa5d88d94d52381ef5c16622d7139b4ea7679)]
#Response prepared by Dispatcher (Finished in 1.387010 s):
HTTP/1.1 200 OK
Cache-Control: must-revalidate, no-cache, private
Content-Type: application/json
Date: Tue, 08 Oct 2019 18:35:07 GMT
Expires: 0
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There are no available Windows Plesk server in PCP > WebHosting Plesk > Service Nodes. Feature request #WHM-11123 has been submitted in order to improve error handling for DB node connection validation.


Add a Win Plesk server and make sure that it has active status.

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