Certain failures [1] were noticed upstream by rodolfo_alonso in WNTP job, fails over QoS and other tests after initial failure.

This task is to debug and resolve these issues.

Setting high severity since suspected issue that fails all future tests after it (possible missing cleanup).

[1]

https://ba8dc0547d296ecb8252-f51718e85779029a4619d0950b3c25e3.ssl.cf5.rackcdn.com/openstack/49e96a221ee7412596b1fa177ec79fe8/testr_results.html