diff --git a/tools/devops/automation/scripts/.gitignore b/tools/devops/automation/scripts/.gitignore
new file mode 100644
index 000000000000..89923e7760bc
--- /dev/null
+++ b/tools/devops/automation/scripts/.gitignore
@@ -0,0 +1,2 @@
+_provisionator
+
diff --git a/tools/devops/automation/scripts/provisionator-bootstrap.sh b/tools/devops/automation/scripts/provisionator-bootstrap.sh
new file mode 100755
index 000000000000..143cfa4bf75e
--- /dev/null
+++ b/tools/devops/automation/scripts/provisionator-bootstrap.sh
@@ -0,0 +1,131 @@
+#!/bin/bash -e
+# shellcheck disable=SC2220,SC2181
+#
+# Remove the following GUID if you do not wish for this script self-update:
+# D6F71FB5-F2A7-4A62-86D3-10DFE08301CC
+# https://github.com/xamarin/provisionator
+
+while getopts ":t:" opt; do
+  case "${opt}" in
+    t)
+      TOKEN=${OPTARG}
+      shift 2
+      ;;
+  esac
+done
+
+function selfdir { (cd "$(dirname "$1")"; echo "$PWD"; ) }
+
+selfdir=$(selfdir "$0")
+
+channel="${PROVISIONATOR_CHANNEL:-latest}"
+
+provisionator_sas_token=$AUTH_TOKEN_PROVISIONATOR
+if [[ -n $provisionator_sas_token ]]; then
+    echo "Downloading Provisionator directly from BosStorageMirror Azure blob storage"
+    base_url="https://bosstoragemirror.blob.core.windows.net/provisionator/664bd334021e3102cdef1af66c4fc9f1b2ecd2a21b47419e80d08da1f6c61c2a/${channel}"
+else
+  # Grab auth token from Environment first
+  # Otherwise set to provided option, if available
+  base_url="https://dl.internalx.com/provisionator/664bd334021e3102cdef1af66c4fc9f1b2ecd2a21b47419e80d08da1f6c61c2a/${channel}"
+  auth_token=$AUTH_TOKEN_GITHUB_COM
+  if [[ -z $auth_token ]]; then
+    echo "Setting auth_token to input token and not AUTH_TOKEN_GITHUB_COM"
+    auth_token=$TOKEN
+  fi
+  if [[ -z $auth_token ]]; then
+    echo "WARNING: Please set AUTH_TOKEN_GITHUB_COM to a GitHub PAT before running provisionator or run provisionator.sh -t <TOKEN> ..."
+    echo "At a future point, Provisionator will not be able to bootstrap without the PAT set properly"
+    base_url="https://bosstoragemirror.blob.core.windows.net/provisionator/664bd334021e3102cdef1af66c4fc9f1b2ecd2a21b47419e80d08da1f6c61c2a/${channel}"
+  fi
+fi
+
+latest_version_url="${base_url}/version"
+
+if [[ -n $provisionator_sas_token ]]; then
+    echo "latest_version_url: Appending SAS token"
+    latest_version_url="${latest_version_url}?${provisionator_sas_token}"
+fi
+
+archive_name="provisionator.osx.10.11-x64.zip"
+archive_path="${selfdir}/${archive_name}"
+archive_extract_path="${selfdir}/_provisionator"
+archive_url="${base_url}/${archive_name}"
+if [[ -n $provisionator_sas_token ]]; then
+    echo "archive_url: Appending SAS token"
+    archive_url="${archive_url}?${provisionator_sas_token}"
+fi
+
+binary_path="${archive_extract_path}/provisionator"
+pk_path="${archive_extract_path}/pk"
+
+set +e
+
+# Double brackets are required for the following condition to evaulate as expected
+if [[ -z $auth_token ]] || [[ -n $provisionator_sas_token ]]; then
+  if [[ -n $provisionator_sas_token ]]; then
+    echo "Fetching latest version with SAS token"
+  else
+    echo "Fetching latest version without auth token"
+  fi
+  latest_version="$(curl -fsL "${latest_version_url}")"
+else
+  echo "Fetching latest version with auth token"
+  latest_version="$(curl -fsL -H "Authorization: token ${auth_token}" "${latest_version_url}")"
+fi
+if [[ $? != 0 ]]; then
+  echo "Unable to determine latest version from ${latest_version_url}"
+  echo "Please check to make sure a valid GitHub PAT was provided"
+  exit 1
+fi
+set -e
+
+function update_in_place {
+  echo "Downloading Provisionator $latest_version..."
+  local progress_type="-s"
+  tty -s && progress_type="-#"
+  if [[ -z $auth_token ]] || [[ -n $provisionator_sas_token ]]; then
+    curl -fL $progress_type -o "$archive_path" "$archive_url"
+  else
+    curl -fLH "Authorization: token ${auth_token}"  $progress_type -o "$archive_path" "$archive_url"
+  fi
+  rm -rf "$archive_extract_path"
+  unzip -q -o -d "$archive_extract_path" "$archive_path"
+  rm -f "$archive_path"
+}
+
+if [[ -f "$binary_path" ]]; then
+  chmod +x "$binary_path"
+  current_version="$("$binary_path" -version 2>&1 || true)"
+  if [[ "$latest_version" != "$current_version" ]]; then
+    update_in_place
+  fi
+else
+  update_in_place
+fi
+
+# Check for the pk (PackageKitTool) binary, which should be included in the provisionator macOS ZIP package
+if [[ "$OSTYPE" == "darwin"* ]]; then
+  echo "Checking for PackageKitTool (pk) binary..."
+  if [[ -f "$pk_path" ]]; then
+    echo "PackageKitTool (pk) binary found: ${pk_path}"
+    echo "chmod +x ${pk_path}"
+    chmod +x "$pk_path"
+  else
+    echo "ERROR: pk file not found: ${pk_path}"
+    exit 5
+  fi
+fi
+
+# Opt out of macOS backward compat so correct Big Sur OS versions can be obtained.
+# More info https://github.com/ziglang/zig/issues/7569
+export SYSTEM_VERSION_COMPAT=0
+
+# TODO: The executable permission should be applied here. However, since this script is reflective of production scripts used by other clients/teams avoid modifying the executable permission here.
+#       A reason to avoid this is that the executable permission is expected to be preserved in the ZIP file produced by the ClientTools.Provisionator build pipeline
+# CONSIDER: A possible follow up item would be to go update all the production scripts to apply the executable permission here to ensure the provisionator binary has the executable permission set
+#       This may also involve updating the Provisionator Azure DevOps provisionator task to ensure it applies the executable attribute after ZIP extraction
+#       https://devdiv.visualstudio.com/Engineering/_git/xamarin-azdev-extension?path=/provisionator-task
+# echo "Applying executable attribute: ${binary_path}"
+# chmod +x "$binary_path"
+exec caffeinate "$binary_path" "$@"
diff --git a/tools/devops/automation/templates/build/build.yml b/tools/devops/automation/templates/build/build.yml
index d3d9951de246..ae746a2d4776 100644
--- a/tools/devops/automation/templates/build/build.yml
+++ b/tools/devops/automation/templates/build/build.yml
@@ -85,14 +85,12 @@ steps:
       make -C $(Build.SourcesDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops provisioning
     displayName: 'Generate provisionator files.'
 
-  - task: xamops.azdevex.provisionator-task.provisionator@2
-    displayName: 'Provision Products & Frameworks'
-    inputs:
+  - template: ../common/provision.yml
+    parameters:
       provisioning_script: $(Build.SourcesDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops/build-provisioning.csx
-      provisioning_extra_args: '-vvvv'
-      github_token: ${{ parameters.gitHubToken }}
-    timeoutInMinutes: 250
-    retryCountOnTaskFailure: ${{ parameters.retryCount }}  # mono does give issues sometimes to download, we will retry
+      displayName: 'Provision Products & Frameworks'
+      provisionatorChannel: $(PROVISIONATOR_CHANNEL)
+      retryCount: ${{ parameters.retryCount }}  # mono does give issues sometimes to download, we will retry
 
   - bash: |
       set -x
diff --git a/tools/devops/automation/templates/common/provision.yml b/tools/devops/automation/templates/common/provision.yml
new file mode 100644
index 000000000000..6424ffd2103d
--- /dev/null
+++ b/tools/devops/automation/templates/common/provision.yml
@@ -0,0 +1,116 @@
+# yamllint disable rule:line-length
+# Template to run provisionator via the bootstrap script with BosStorageMirror SAS token auth.
+# This replaces the xamops.azdevex.provisionator-task.provisionator@3 task to avoid
+# dl.internalx.com timeout issues under concurrent load.
+
+parameters:
+  - name: provisioning_script
+    type: string
+
+  - name: displayName
+    type: string
+    default: 'Provisionator'
+
+  - name: provisionatorChannel
+    type: string
+    default: 'latest'
+
+  - name: provisioning_extra_args
+    type: string
+    default: '-vvvv'
+
+  - name: timeoutInMinutes
+    type: number
+    default: 250
+
+  - name: retryCount
+    type: number
+    default: 0
+
+  - name: enabled
+    type: boolean
+    default: true
+
+steps:
+  - task: AzureCLI@2
+    displayName: 'Generate BosStorageMirror SAS tokens'
+    condition: and(succeeded(), ${{ parameters.enabled }})
+    inputs:
+      azureSubscription: 'Xamarin - RelEng (BosStorageMirror-Contributor-MI)'
+      scriptType: 'bash'
+      scriptLocation: 'inlineScript'
+      failOnStandardError: true
+      inlineScript: |
+        set -euo pipefail
+
+        storage_account="bosstoragemirror"
+
+        # macOS/BSD date syntax for expiry calculation
+        start_time="$(date -u '+%Y-%m-%dT%H:%MZ')"
+        prov_expiry="$(date -u -v+20M '+%Y-%m-%dT%H:%MZ')"
+        files_expiry="$(date -u -v+3H '+%Y-%m-%dT%H:%MZ')"
+
+        echo "Generating provisionator SAS token (expires $prov_expiry)..."
+        sas_provisionator="$(az storage container generate-sas \
+          --account-name "$storage_account" \
+          --name provisionator \
+          --permissions r \
+          --start "$start_time" \
+          --expiry "$prov_expiry" \
+          --https-only \
+          --as-user \
+          --auth-mode login \
+          -o tsv)"
+
+        if [[ -z "$sas_provisionator" || ${#sas_provisionator} -le 16 ]]; then
+          echo "ERROR: Failed to generate SAS token for BosStorageMirror provisionator container"
+          exit 1
+        fi
+
+        echo "Generating internal-files SAS token (expires $files_expiry)..."
+        sas_internal_files="$(az storage container generate-sas \
+          --account-name "$storage_account" \
+          --name internal-files \
+          --permissions r \
+          --start "$start_time" \
+          --expiry "$files_expiry" \
+          --https-only \
+          --as-user \
+          --auth-mode login \
+          -o tsv)"
+
+        if [[ -z "$sas_internal_files" || ${#sas_internal_files} -le 16 ]]; then
+          echo "ERROR: Failed to generate SAS token for BosStorageMirror internal-files container"
+          exit 1
+        fi
+
+        prov_hint="${sas_provisionator:0:8}...${sas_provisionator: -8}"
+        files_hint="${sas_internal_files:0:8}...${sas_internal_files: -8}"
+
+        echo "sasTokenProvisionator [hint]: $prov_hint"
+        echo "sasToken [hint]: $files_hint"
+
+        echo "##vso[task.setvariable variable=Provisionator.SASToken;issecret=true]$sas_provisionator"
+        echo "##vso[task.setvariable variable=Provisionator.SASTokenHint]$prov_hint"
+        echo "##vso[task.setvariable variable=BosStorageMirror.SASToken;issecret=true]$sas_internal_files"
+        echo "##vso[task.setvariable variable=BosStorageMirror.SASTokenHint]$files_hint"
+
+  - bash: |
+      set -x
+      set -e
+
+      BOOTSTRAP_SCRIPT="$(Build.SourcesDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops/automation/scripts/provisionator-bootstrap.sh"
+      chmod +x "$BOOTSTRAP_SCRIPT"
+
+      echo "Provisionator channel: ${PROVISIONATOR_CHANNEL}"
+      echo "Provisioning script: ${{ parameters.provisioning_script }}"
+
+      "$BOOTSTRAP_SCRIPT" ${{ parameters.provisioning_script }} ${{ parameters.provisioning_extra_args }} || exit 2
+    displayName: '${{ parameters.displayName }}'
+    condition: and(succeeded(), ${{ parameters.enabled }})
+    env:
+      PROVISIONATOR_CHANNEL: ${{ parameters.provisionatorChannel }}
+      AUTH_TOKEN_PROVISIONATOR: $(Provisionator.SASToken)
+      AUTH_TOKEN_BOSSTORAGEMIRROR: $(BosStorageMirror.SASToken)
+    timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
+    retryCountOnTaskFailure: ${{ parameters.retryCount }}
diff --git a/tools/devops/automation/templates/mac/build.yml b/tools/devops/automation/templates/mac/build.yml
index 12cd12a3d0b4..fd4bcfacc0c4 100644
--- a/tools/devops/automation/templates/mac/build.yml
+++ b/tools/devops/automation/templates/mac/build.yml
@@ -104,14 +104,13 @@ steps:
 
   displayName: 'Set VM Vendor'
 
-- task: xamops.azdevex.provisionator-task.provisionator@2
-  displayName: 'Provision Brew components'
-  inputs:
+- template: ../common/provision.yml
+  parameters:
     provisioning_script: $(Build.SourcesDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops/provision-brew-packages.csx
-    provisioning_extra_args: '-vvvv'
-    github_token: $(Github.Token)
-  timeoutInMinutes: 30
-  enabled: false
+    displayName: 'Provision Brew components'
+    provisionatorChannel: $(PROVISIONATOR_CHANNEL)
+    timeoutInMinutes: 30
+    enabled: false
 
 - bash: |
     sudo rm -Rf $(Build.SourcesDirectory)/package
diff --git a/tools/devops/automation/templates/tests/build.yml b/tools/devops/automation/templates/tests/build.yml
index 9d94572b96d0..1eacbac94c70 100644
--- a/tools/devops/automation/templates/tests/build.yml
+++ b/tools/devops/automation/templates/tests/build.yml
@@ -203,13 +203,11 @@ steps:
   condition: ${{ parameters.clearProvisionatorCache }}
 
 # Use the provisionator to install the test dependencies. Those have been generated in the 'Generate Provisionator csx file' step.
-- task: xamops.azdevex.provisionator-task.provisionator@2
-  displayName: 'Provisionator dependencies'
-  inputs:
+- template: ../common/provision.yml
+  parameters:
     provisioning_script: $(System.DefaultWorkingDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops/build-provisioning.csx
-    provisioning_extra_args: '-vvvv'
-    github_token: ${{ parameters.gitHubToken }}
-  timeoutInMinutes: 250
+    displayName: 'Provisionator dependencies'
+    provisionatorChannel: $(PROVISIONATOR_CHANNEL)
 
 - bash: |
     set -x
diff --git a/tools/devops/automation/templates/windows/reserve-mac.yml b/tools/devops/automation/templates/windows/reserve-mac.yml
index c0e2c9ae0ae8..9e24069e0af6 100644
--- a/tools/devops/automation/templates/windows/reserve-mac.yml
+++ b/tools/devops/automation/templates/windows/reserve-mac.yml
@@ -99,13 +99,11 @@ steps:
     rm -f ~/Library/Preferences/Xamarin/Settings.plist
   displayName: 'Clear old Xcode settings'
 
-- task: xamops.azdevex.provisionator-task.provisionator@2
-  displayName: 'Provision Xcode'
-  inputs:
+- template: ../common/provision.yml
+  parameters:
     provisioning_script: $(System.DefaultWorkingDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops/provision-xcode.csx
-    provisioning_extra_args: '-vvvv'
-    github_token: ${{ parameters.gitHubToken }}
-  timeoutInMinutes: 250
+    displayName: 'Provision Xcode'
+    provisionatorChannel: $(PROVISIONATOR_CHANNEL)
 
 - bash: $(Build.SourcesDirectory)/$(BUILD_REPOSITORY_TITLE)/system-dependencies.sh --ignore-visual-studio --ignore-shellcheck --ignore-yamllint --provision-simulators --ignore-xcode-components
   displayName: 'Provision simulators'