Internet-Security.com TCP port 3629 details

TCP port 3629 is assigned by IANA to escvpnet, the ESC/VP.NET protocol used for network control of Epson projectors.
It is used by Epson projectors (e.g., PowerLite and EB series) for remote power, input selection, and status queries.
Epson software such as EasyMP Monitor/Epson Projector Management and Epson iProjection communicates with projectors over TCP 3629.
Third-party AV control systems (e.g., Crestron, AMX, Extron) use their Epson projector drivers/modules to control devices via TCP 3629 as well.
No widely recognized malware or exploitation is specifically associated with this port.

TCP 3629