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An error occurred while executing the 'Install-WebApplicationProxy' command. An error occurred when attempting to establish a trust relationship with the federation service. Error: Service Unavailable RRS feed

  • Question

  • While configuring WAP for Office 365. I got error message as below.

    An error occurred while executing the 'Install-WebApplicationProxy' command. An error occurred when attempting to establish a trust relationship with the federation service. Error: Service Unavailable.

    Please assist me in troubleshoot this error.

    I want to brief back ground:

    I have installed FS certificate from internal CA & configured ADFS & WAP initially.

     Later purchased external certificate, uninstalled ADFS & WAP, installed external certificate for FS and configured ADFS with different Federation service name . while configuring WAP, I was getting above error.

    when I check in WAP with command: netsh http show ssl, I can see old certificate as fs.domain.com, even I changed https 443 binding to new certificate sts.domain.com, this is not changed.

    • Edited by Rcpadavala Wednesday, July 19, 2017 12:48 PM adding background details
    Wednesday, July 19, 2017 12:35 PM