Sorry, I’ve been in and out, of the office, and was finally able to get a wireshark capture from my coworker. Also, When I said discovery Earlier in reference to Point 4840, that section of the window is for searching for a list available UA servers on the port that you type in to that field. When you find a valid one and select it, it will populate the fields at the bottom(Server).
In response to Kevin, we tried removing the /disocvery, but received the same error message. attached is a wireshark capture(WireSharkData.zip (4.9 KB) .pcapng file). Not sure if this is the file format you need, please let me know how you would like it to be formatted.