Telegraf agent fails to install post Cloud Proxy FQDN change

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• Install telegraf agents fail while pointing to the Cloud proxy where FQDN was changed
• telegraf-utils.log show errors as below:
  

  ##/0#/2026 14.53.01    ERROR    Failed to update VM bootstrap property. Error code: 400
  ##/0#/2026 14.53.01    ERROR    StatusDescription:
  ##/0#/2026 14.53.01    ERROR    install agents failed at Check Failed. Configured VIP/cloud proxy address:[<<Old Cloud Proxy FQDN>>]. Unreachable Ports:  443 4505 4506. Please check for port connectivity using the configured address: <<Old Cloud Proxy FQDN>>, firewall rules in the target machine and the status of the following services on cloud proxy: httpd-south service and docker container ucp-controlplane-saltmaster. Please check C:\Users\#####\arc_install_tmp_dir\uaf_bootstrap.log on the endpoint VM. please check logs for more detail.

• The request fails after the following step as per C:\Users\#####\arc_install_tmp_dir\uaf_bootstrap.log and grains file in download.zip points to Old Cloud Proxy FQDN:
  

  ##/0#/2026 14.52.56    INFO    invoking download bootstrap bundle suite api :Invoke-RestMethod -Proxy  -ProxyCredential  -Uri https://<<Aria Operations FQDN>>/suite-api/api/applications/subscribe?vmIp=###################&ostype=Windows&collectorIP_or_GroupNm=<<Cloud Proxy IP>> -Method Put -Headers System.Collections.Hashtable -OutFile C:\Users\#######\arc_install_tmp_dir/download.zip
  ##/0#/2026 14.52.57    INFO    Bootstrap bundle downloaded successfully

Environment

Aria Operations 8.18

Cause

This happens as the bootstrap bundle (download.zip) still references the Old Cloud Proxy FQDN.

Resolution

1. Redeploy the affected Cloud Proxy (Reference KB: Procedure to Replace Remote Collector / Redeploy Cloud Proxy )
2. Re-install telegraf agents (Reference doc: Install and Uninstall a Telegraf Agent)