No Response From Open Space Server at Mobile App

Document ID : KB000098091
Last Modified Date : 25/05/2018
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After log into Mobile app via USS URL port (8686), it is possible you may receive below error message:

No Response From Open Space Server. Please contact your administrator.

Error Mobile App

In addition, by looking into the CA SDM standard logs (stdlog.*), you might see some errors related to authentication:

boplgin #### ERROR bplaccess.c #### AHD04042:Login failed for userid (servicedesk); login timed out
CA Service Management 14.1 / 17.1
Mobile App 3.1.13
It is possible that you are facing some slowness to access the CA products (SDM and Catalog) directly, which reflects on the Mobile App usage via USS Portal URL. This is because USS has integration to both products via Data Source configuration.
Check if there is any issue related to authentication causing the slowness. If the authentication is done via CA EEM against LDAP, you can also check what is mentioned at document:

Unable to log in Service Desk with any user and EEM GUI is not accessible