Investigate NFR Upgrade tests for connection reset errors

[salonichf5]

Seeing consistent connection reset errors in upgrade tests

Get "http://cafe.example.com/coffee": read tcp 10.138.0.107:36243->10.138.0.108:80: read: connection reset by peer
Get "http://cafe.example.com/coffee": read tcp 10.138.0.107:34647->10.138.0.108:80: read: connection reset by peer
Get "http://cafe.example.com/coffee": dial tcp 0.0.0.0:0->10.138.0.108:80: connect: connection refused

Should be investigated further to ensure smoother upgrades