Windows Media Encoder will not work with Wowza Streaming Engine. Please use an encoder that uses H.264 video with stereo AAC audio and can deliver the content to Wowza Streaming Engine via RTMP, RTSP, or MPEG-TS.
If you are using a generic RTMP encoder then please follow the instructions in the following article.
https://www.wowza.com/docs/how-to-set-up-live-streaming-using-an-rtmp-based-encoder
If you are using a generic RTSP encoder then please follow the instructions in the following article.
https://www.wowza.com/docs/how-to-set-up-live-streaming-using-an-rtsp-rtp-based-encoder
If you are using a generic MPEG-TS encoder then please follow the instructions in the following article.
https://www.wowza.com/docs/how-to-publish-and-play-a-live-stream-mpeg-ts-based-encoder
For more information on encoders please take a look at the following article.
https://www.wowza.com/docs/specific-encoding-technologies