A TS client fails to initialize the TSProgressUI:

<![LOG[Unable to create an instance of the Progress UI COM Object. 0x8000401a.]LOG]!><time="10:35:15.771-120" date="08-19-2020" component="OSDDownloadContent" context="" type="2" thread="46516" file="clientui.cpp:165">

We then fail in the script with;

<![LOG[Unable to connect to the Task Sequence Progress UI! Please verify you are in a running Task Sequence Environment. ]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[Please note: TSProgressUI cannot be loaded during a prestart command.]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ErrorDetails:]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[Retrieving the COM class factory for component with CLSID {F79474A1-7B80-4A18-BC7B-D3938BD93808} failed due to the ]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[following error: 8000401a The server process could not be started because the configured identity is incorrect. Check ]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[the username and password. (Exception from HRESULT: 0x8000401A).]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[At F:_SMSTaskSequence\Packages\AP100014\InjectBCData.ps1:815 char:9]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[+ throw "Unable to connect to the Task Sequence Progress UI! Pl ...]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ + CategoryInfo : OperationStopped: (Unable to conne...T: 0x8000401A).:String) [], RuntimeException]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ + FullyQualifiedErrorId : Unable to connect to the Task Sequence Progress UI! Please verify you are in a running T ]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ ask Sequence Environment. Please note: TSProgressUI cannot be loaded during a prestart command.]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ErrorDetails:]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ Retrieving the COM class factory for component with CLSID {F79474A1-7B80-4A18-BC7B-D3938BD93808} failed due to the ]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ following error: 8000401a The server process could not be started because the configured identity is incorrect. C ]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ heck the username and password. (Exception from HRESULT: 0x8000401A).]LOG]!><time="10:35:32.625-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[ ]LOG]!><time="10:35:32.705-120" date="08-19-2020" component="RunPowerShellScript" context="" type="3" thread="38596" file="main.cpp:76">
<![LOG[Process completed with exit code 1]LOG]!><time="10:35:32.705-120" date="08-19-2020" component="RunPowerShellScript" context="" type="0" thread="38596" file="CommandLine.cpp:1136">
<![LOG[PowerShell command line returned code 1]LOG]!><time="10:35:32.705-120" date="08-19-2020" component="RunPowerShellScript" context="" type="1" thread="38596" file="main.cpp:487">

Hello.
The remediation script specifies the lifetime of the content in the cache.
..

SET THIS VARIABLE to set the TTL - this is the time (Days) that BranchCache will keep content in the cache

#-----------------------<<<<<
$TTL = 180
..

Is this the time after which all content in the cache will be invalid?
The question came up because branchcache was working for a long time and then stopped working. There is almost nothing from the neighbors.
Will there be a problem when setting a lifetime of 3000 days?

Thank you.

The if($OldKey -eq 0) check on line 360 should probably be checking for an array status such as if($OldKey -isnot [array]) so that the actual status of the value set is made. I have been getting "Could not parse current secret key from registry" when it was actually parsed just fine. When I change the line as indicated, the check works as expected.