The uberAgent service is not running on the machine.

The error displayed during attempt to start service:

Windows could not start the uberAgent service on Local Computer.
Error 13: The data is invalid.

uberAgent.log located in C:\Windows\temp shows that service is shutting down because of licensing issue:

ReadConfiguration,No license or integration mode detected. Shutting down.

Attempt to activate with LAS:

CallLASRestAPI,LAS request URL: https://api-us.cloud.com/lasuberagent/activate
CallLASRestAPI,LAS request headers count: 4
CallLASRestAPI,Header[0]: Authorization: [MASKED]
CallLASRestAPI,Header[1]: Citrix-CustomerId: customer
CallLASRestAPI,Header[2]: Content-Type: application/json
CallLASRestAPI,Header[3]: Accept: application/json
PostDataToPage,curl_easy_perform failed with code: 5
CallLASRestAPI,Failed to send activation data.
CallLASRestAPI,Failed to call LAS REST API after 4 attempts.
AttemptLicenseReactivation,License reactivation failed

If we check the error code from this line: PostDataToPage,curl_easy_perform failed with code: 5

From CURL documentation:

CURLE_COULDNT_RESOLVE_PROXY (5)
Could not resolve proxy. The given proxy host could not be resolved.

This indicates that:

• There is a proxy configured on the machine
• There is an issue with DNS resolution

DNS resolution check

cmd.exe:

nslookup dev-proxy.domain
DNS Server can't find dev-proxy.domain: Non-existent domain

Wireshark (filter "dns"):

DNS        82        Standard query 0x5783 A dev-proxy.domain.local
DNS        157        Standard query response 0x5783 No such name A dev-proxy.domain.local

Proxy server has not been configured in any of known location, examples:

NETSH:

Environmental variables (checking with admin account) - no http_proxy / https_proxy configured:

uberAgent registry - no http_proxy / https_proxy configured:

Process monitor trace captured during uberAgent startup shows that the process starts with http_proxy and https_proxy variables.

Where are the variables coming from?

uberAgent service runs using Local System account.

Local System environmental variables in registry: Computer\HKEY_USERS\S-1-5-18\Environment

Default configuration in registry for system account : Computer\HKEY_USERS\.DEFAULT\Environment

Process Monitor trace filtered by services.exe process also shows that variable was in used from this registry location.