After upgrading to 20.3 - web interfaces not working

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Customer upgraded to 20.3. IM came up with all the probes seemed to be working. Customer could not login to the Admin Console or any other web interfaces: 

This page isn’t working

<xx.xx.xx.xx> didn’t send any data.

ERR_EMPTY_RESPONSE

 

 

Environment

Release : 20.3

Component : UIM - ADMIN_CONSOLE

Cause

The WASP probe was not running properly after the upgrade. wasp had a PID but no Port.

Resolution

• Deploy wasp, adminconsoleapp, uimhome and uimesdplatelemetray packages on the primary hub again and reboot. 
• If wasp still does not start - deactivate wasp, rename the wasp folder.
• Deploy wasp, adminconsoleapp, uimhome and uimesdplatelemetray packages on the primary hub again and reboot.
• If wasp starts properly, then run the OC installer again, following this link.