During fail over to Disaster Recovery site the TrueSight Presentation Server in the DR remains in standby mode
The ha-shared.conf file is usually copied from the primary TSPS server to the secondary TSPS server for a DR site. In this case, the file has incorrect entries from the primary site.
Make sure that the below entries are correct and reflect servers from the DR site in the ha-shared.conf file:
Once the entries are corrected, please restart the TSPS server and it should go into active mode as needed.