vCenter discovery fails with credential validation errorIssue <!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } vCenter discovery fails, and the VMwareVCenterDatacentersProbe input payload returns the following error: <results error="No credential would validate for https://<vcenter-ip>/sdk" probe_time="24677" result_code="900000"><result error="No credential would validate for https://<vcenter-ip>/sdk"><output/></result> Test Credential against the vCenter IP address also fails. Release<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } All Cause<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } vCenter discovery fails due to one or more of the following causes: The VMware credentials do not have the read-only role in vCenter.The username for the VMware credentials is not in the required format: username@domain or domain\username. The SDK API is not installed on vCenter. Resolution<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } 1. Ensure the SDK API is installed on vCenter. 2. Confirm the required ports are open. By default, the VMware vCenter Datacenters probe runs on port 443. The port probes for vCenter run on the following ports: `vmapp6_https`: 9443 and `vmapp_https`: 5480. Verify the Shazzam probe output shows these ports as open before proceeding <results active="1" alive="1" full_range="<?xml version="1.0" encoding="UTF-8"?><discovery_ranges><meta_coll><ip_list><ip>10.0.0.0</ip></ip_list></meta_coll></discovery_ranges>" probe_time="5539" range="<?xml version="1.0" encoding="UTF-8"?><discovery_ranges><meta_coll><ip_list><ip>10.0.0.0</ip></ip_list></meta_coll></discovery_ranges>" result_code="0" total="1"><result active="true" alive="true" ip_address="10.0.0.0"><scanner name="HTTPS" port="5986" portprobe="winrm_ssl" protocol="tcp" result="timed_out" service="winrm_ssl"/><scanner name="BannerTCP" port="22" portprobe="ssh" protocol="tcp" result="open" service="ssh"><banner_text>SSH-2.0-OpenSSH_7.4 </banner_text><banner_bytes>.53.53.48.2d.32.2e.30.2d.4f.70.65.6e.53.53.48.5f.37.2e.34.0a.</banner_bytes></scanner><scanner name="BannerTCP" port="5480" portprobe="vmapp" protocol="tcp" result="open" service="vmapp_https"/><scanner name="BannerTCP" port="9443" portprobe="vmapp" protocol="tcp" result="open" service="vmapp6_https"/><scanner name="SLP" port="427" portprobe="slp" protocol="udp" result="timed_out" service="slp"/><scanner name="NBT" port="137" portprobe="wins" protocol="udp" result="unresolved" service="ms-nb-ns"/><scanner name="DNS" port="53" portprobe="dns" protocol="udp" result="resolved" service="dns"><host_names>vcenter.hostxyz.com</host_names></scanner><scanner name="HTTP" port="80" portprobe="http" protocol="tcp" result="open" service="http"></scanner><scanner name="HTTP" port="443" portprobe="http" protocol="tcp" result="open" service="https"/></result> 3. Verify that the VMware credentials used for discovery allow login to the vCenter web client from the MID Server host. 4. If authentication fails with the correct credentials, update the username format. Enter the username as `user@domain` instead of `domain\user`. Update the same format in the discovery credentials table on the instance. 5. Once the previous configurations are in place, re-run discovery against the vCenter. vCenter is discovered successfully. Related Links<!-- /*NS Branding Styles*/ --> .ns-kb-css-body-editor-container { p { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } span { font-size: 12pt; font-family: Lato; color: var(--now-color--text-primary, #000000); } h2 { font-size: 24pt; font-family: Lato; color: var(--now-color--text-primary, black); } h3 { font-size: 18pt; font-family: Lato; color: var(--now-color--text-primary, black); } h4 { font-size: 14pt; font-family: Lato; color: var(--now-color--text-primary, black); } a { font-size: 12pt; font-family: Lato; color: var(--now-color--link-primary, #00718F); } a:hover { font-size: 12pt; color: var(--now-color--link-primary, #024F69); } a:target { font-size: 12pt; color: var(--now-color--link-primary, #032D42); } a:visited { font-size: 12pt; color: var(--now-color--link-primary, #00718f); } ul { font-size: 12pt; font-family: Lato; } li { font-size: 12pt; font-family: Lato; } img { display: ; max-width: ; width: ; height: ; } } vCenter discovery — KB0813327