diff --git a/changelogs/fragments/fix_ansible_connect_timeout.yaml b/changelogs/fragments/fix_ansible_connect_timeout.yaml
new file mode 100644
index 00000000000..49860be231a
--- /dev/null
+++ b/changelogs/fragments/fix_ansible_connect_timeout.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+- fix ansible_connect_timeout variable in network_cli,netconf,httpapi and nxos_install_os timeout check
diff --git a/lib/ansible/plugins/action/nxos.py b/lib/ansible/plugins/action/nxos.py
index e9230b25906..8598530de90 100644
--- a/lib/ansible/plugins/action/nxos.py
+++ b/lib/ansible/plugins/action/nxos.py
@@ -56,7 +56,8 @@ class ActionModule(_ActionModule):
                 self._task.args['username'] = self._play_context.connection_user
 
         if self._task.action == 'nxos_install_os':
-            if C.PERSISTENT_COMMAND_TIMEOUT < 600 or C.PERSISTENT_CONNECT_TIMEOUT < 600:
+            connection = self._connection
+            if connection.get_option('persistent_command_timeout') < 600 or connection.get_option('persistent_connect_timeout') < 600:
                 msg = 'PERSISTENT_COMMAND_TIMEOUT and PERSISTENT_CONNECT_TIMEOUT'
                 msg += ' must be set to 600 seconds or higher when using nxos_install_os module'
                 return {'failed': True, 'msg': msg}
diff --git a/lib/ansible/plugins/connection/httpapi.py b/lib/ansible/plugins/connection/httpapi.py
index 78f10112d8d..b96a2a60821 100644
--- a/lib/ansible/plugins/connection/httpapi.py
+++ b/lib/ansible/plugins/connection/httpapi.py
@@ -127,6 +127,8 @@ options:
         key: connect_timeout
     env:
       - name: ANSIBLE_PERSISTENT_CONNECT_TIMEOUT
+    vars:
+      - name: ansible_connect_timeout
   persistent_command_timeout:
     type: int
     description:
diff --git a/lib/ansible/plugins/connection/netconf.py b/lib/ansible/plugins/connection/netconf.py
index 2dcaaf4d69d..e8a9102d4b5 100644
--- a/lib/ansible/plugins/connection/netconf.py
+++ b/lib/ansible/plugins/connection/netconf.py
@@ -140,6 +140,8 @@ options:
         key: connect_timeout
     env:
       - name: ANSIBLE_PERSISTENT_CONNECT_TIMEOUT
+    vars:
+      - name: ansible_connect_timeout
   persistent_command_timeout:
     type: int
     description:
diff --git a/lib/ansible/plugins/connection/network_cli.py b/lib/ansible/plugins/connection/network_cli.py
index a7b075e644b..f6a0960c970 100644
--- a/lib/ansible/plugins/connection/network_cli.py
+++ b/lib/ansible/plugins/connection/network_cli.py
@@ -142,6 +142,8 @@ options:
         key: connect_timeout
     env:
       - name: ANSIBLE_PERSISTENT_CONNECT_TIMEOUT
+    vars:
+      - name: ansible_connect_timeout
   persistent_command_timeout:
     type: int
     description: