20:06:20.275: WriteN, RTMP send error 10054 (4097 bytes)
20:06:20.275: WriteN, RTMP send error 10038 (59 bytes)
20:06:20.275: WriteN, RTMP send error 10038 (42 bytes)
This errors are associated with network issues. It could be on the network driver (need to update), the network adapter (somehow fail), network cable (replace), router/modem (replace/contact ISP), or most probably an issue on the ISP itself, specifically for the RTMP protocol.
Of course, wi-fi isn't reliable enough for streaming.
As you mentioned you have the same issue with a wired connection, then I assume the issue it's on a falling router/modem or ISP itself.
If you can, please provide a log file from a test attempt using a wired connection.