diff --git a/autotests/testEAP-WPS-Frag/wps_frag_test.py b/autotests/testEAP-WPS-Frag/wps_frag_test.py
index b9be0159..dcaf1ae2 100644
--- a/autotests/testEAP-WPS-Frag/wps_frag_test.py
+++ b/autotests/testEAP-WPS-Frag/wps_frag_test.py
@@ -38,6 +38,7 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.hostapd = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testEAP-WPS/four_digit_pin_test.py b/autotests/testEAP-WPS/four_digit_pin_test.py
index 10afaa5d..7bdb57cb 100644
--- a/autotests/testEAP-WPS/four_digit_pin_test.py
+++ b/autotests/testEAP-WPS/four_digit_pin_test.py
@@ -43,6 +43,7 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.hostapd = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testEAP-WPS/pin_test.py b/autotests/testEAP-WPS/pin_test.py
index 706dc20b..e2fef335 100644
--- a/autotests/testEAP-WPS/pin_test.py
+++ b/autotests/testEAP-WPS/pin_test.py
@@ -46,6 +46,7 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.hostapd = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testEAP-WPS/push_button_test.py b/autotests/testEAP-WPS/push_button_test.py
index f82a56b5..08463f15 100644
--- a/autotests/testEAP-WPS/push_button_test.py
+++ b/autotests/testEAP-WPS/push_button_test.py
@@ -41,6 +41,7 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.hostapd = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testFT-8021x-roam/connection_test.py b/autotests/testFT-8021x-roam/connection_test.py
index c50c90ee..f83c430d 100644
--- a/autotests/testFT-8021x-roam/connection_test.py
+++ b/autotests/testFT-8021x-roam/connection_test.py
@@ -143,6 +143,8 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.bss_hostapd = None
+        cls.bss_radio = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testFT-FILS-SHA256/connection_test.py b/autotests/testFT-FILS-SHA256/connection_test.py
index 81201e08..c9e8ac7d 100644
--- a/autotests/testFT-FILS-SHA256/connection_test.py
+++ b/autotests/testFT-FILS-SHA256/connection_test.py
@@ -174,6 +174,8 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.bss_hostapd = None
+        cls.bss_radio = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testFT-FILS-SHA384/connection_test.py b/autotests/testFT-FILS-SHA384/connection_test.py
index 81201e08..0495d77e 100644
--- a/autotests/testFT-FILS-SHA384/connection_test.py
+++ b/autotests/testFT-FILS-SHA384/connection_test.py
@@ -174,6 +174,9 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.bss_hostapd = None
+        cls.bss_radio = None
+
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testFT-PSK-over-DS/connection_test.py b/autotests/testFT-PSK-over-DS/connection_test.py
index ad186d07..4c751841 100644
--- a/autotests/testFT-PSK-over-DS/connection_test.py
+++ b/autotests/testFT-PSK-over-DS/connection_test.py
@@ -147,6 +147,8 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.bss_hostapd = None
+        cls.bss_radio = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testFT-PSK-roam/connection_test.py b/autotests/testFT-PSK-roam/connection_test.py
index c0eec0ae..37c6da18 100644
--- a/autotests/testFT-PSK-roam/connection_test.py
+++ b/autotests/testFT-PSK-roam/connection_test.py
@@ -140,6 +140,8 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.bss_hostapd = None
+        cls.bss_radio = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)
diff --git a/autotests/testFT-SAE-roam/connection_test.py b/autotests/testFT-SAE-roam/connection_test.py
index f2c694dd..da1ef731 100644
--- a/autotests/testFT-SAE-roam/connection_test.py
+++ b/autotests/testFT-SAE-roam/connection_test.py
@@ -197,6 +197,8 @@ class Test(unittest.TestCase):
     @classmethod
     def tearDownClass(cls):
         IWD.clear_storage()
+        cls.bss_hostapd = None
+        cls.bss_radio = None
 
 if __name__ == '__main__':
     unittest.main(exit=True)