Merge branch '2.2' into 3.0

# Conflicts:
#	.github/workflows/testing.yml
#	CHANGELOG
#	appveyor.yml
#	dev-requirements.txt
#	gns3server/compute/base_node.py
#	gns3server/controller/__init__.py
#	gns3server/controller/appliance_manager.py
#	gns3server/crash_report.py
#	gns3server/static/web-ui/index.html
#	gns3server/utils/get_resource.py
#	gns3server/version.py
#	gns3server/web/route.py
#	requirements.txt
#	tests/handlers/api/compute/test_qemu.py
#	win-requirements.txt

gns3server/compute/vmware/__init__.py

@@ -306,6 +306,8 @@ class VMware(BaseManager):
 
     def refresh_vmnet_list(self, ubridge=True):
 
+        log.debug("Refreshing VMnet list with uBridge={}".format(ubridge))
+
         if ubridge:
             # VMnet host adapters must be present when uBridge is used
             vmnet_interfaces = self._get_vmnet_interfaces_ubridge()
@@ -314,6 +316,7 @@ class VMware(BaseManager):
             self._vmnets_info = vmnet_interfaces.copy()
             vmnet_interfaces = list(vmnet_interfaces.keys())
 
+        log.debug("Found {} VMnet interfaces".format(len(vmnet_interfaces)))
         # remove vmnets already in use
         for vmware_vm in self._nodes.values():
             for used_vmnet in vmware_vm.vmnets:
@@ -324,6 +327,7 @@ class VMware(BaseManager):
         # remove vmnets that are not managed
         for vmnet in vmnet_interfaces.copy():
             if vmnet in vmnet_interfaces and self.is_managed_vmnet(vmnet) is False:
+                log.debug("{} is not managed by GNS3".format(vmnet))
                 vmnet_interfaces.remove(vmnet)
 
         self._vmnets = vmnet_interfaces