How to connect to ARS v8 from PowerShell?

Same error - as written

try replacing
$QARSServerFQDN = Get-ARSServers | Select-Object -First 1

with

$QARSServerFQDN = (Get-ARSServers)[0]

Same error - as written

try replacing
$QARSServerFQDN = Get-ARSServers | Select-Object -First 1

with

$QARSServerFQDN = (Get-ARSServers)[0]

I get this now:
Connect-QADService :
The remote endpoint does not exist or could not be located.
At C:\ARS Scripts\lzcreation.ps1:360 char:9
+ Connect-QADService -Service $QARSServerFQDN -Proxy
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Connect-QADService], COMException
+ FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,ActiveRoles.ManagementShell.Commands.ConnectCmdlet

Interesting - your script worked for me with the change suggested.
when you run get-arsservers - are you getting back a list of ARS host FQDN's ?

In the lab there is only one server, but yes I am.

I left the function the same and changed the code to complete a write-host of the variable:
#Get the currently active ARS server
$QARSServerFQDN = (Get-ARSServers)[0]
#Connect to Active Roles Server
write-host $QARSServerFQDN
Connect-QADService -Service $QARSServerFQDN -Proxy

This produced the following:
A
Connect-QADService :
The remote endpoint does not exist or could not be located.
At C:\ARS Scripts\temporarycode.ps1:13 char:9
+ Connect-QADService -Service $QARSServerFQDN -Proxy
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Connect-QADService], COMException
+ FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,ActiveRoles.ManagementShell.Commands.ConnectCmdlet

As you can see the write-host only contains the letter A.

I've narrowed it down to the [0], if I remove them it works fine.  I suspect the [0] only works if there is more than one, but doesn't work when there is only one.

Where there's only one server returned, the [0] translates to "give me first character of the string".

Here's my code that works whether you get back one server or more.

$Root = "CN=Enterprise Directory Manager,CN=Aelita,CN=System,DC=companyd,DC=local"

$Servers = @(get-qadobject -SearchRoot $Root | select -ExpandProperty name | where {$_ -like '*2*'}) # The 2 brings back those items containing the port number

$MyARServer = $Servers[0]

The secret sauce is converting the returned list to an array with the @() so you can index into the first element

The $MyARServer line should read:

$MyARServer = $($Servers[0].Split(':')).split(':')[0]  # Select the first server returned and truncate the port number (using the split)

So... all together:

$Root = "CN=Enterprise Directory Manager,CN=Aelita,CN=System,DC=companyd,DC=local"

$Servers = @(get-qadobject -SearchRoot $Root | select -ExpandProperty name | where {$_ -like '*2*'}) # The 2 brings back those items containing the port number

$MyARServer = $($Servers[0].Split(':')).split(':')[0]   # Select the first server returned and truncate the port number (using the split)

(I don't like to munge all my code together as I am used "teaching" people) 

My bad:

$MyARServer = $($Servers[0].Split(':'))[0]  # Select the first server returned and truncate the port number (using the split)

Connect-QADService -proxy -Service $MyARServer