Error 401 auth digest

Hello,

We send the command below to start stream:

[h_t_t_p://155.X.X.X:8087/v2/servers/Wowza%20Streaming%20Server/vhosts/defaultVHost/applications/Eclass/streamfiles/pyrgos102_103/actions/connect?connectAppName=Eclass&appInstance=definst&mediaCasterType=rtp]

and the REST API resources return 401 digest auth failed.

can anybody help?