Putty Serial Connection Windows 11, Speaking to the device at the other end of your serial port is as simple as passing the COM port as an argument, as long as your serial port’s default configuration matches the other device’s settings. Launch PuTTY. I’ve followed the tutorial in Docs and downloaded the patch etc. Type in “ root ” for the username and press Enter. In the main PuTTY Configuration window, select Session in the left-hand category tree. May 1, 2026 · To connect to a serial port with PuTTY, select Serial under “Connection type,” set “Serial line” to your COM port (example: COM3), choose the port speed, then click Open. Apr 30, 2026 · We show you the best PuTTY alternatives for SSH clients. Free download putty for Mac and Linux. Enter the COM port (for example, COM3) in Serial line. Expand Ports (COM & LPT) in Device Manager. ejg, pw, o4hw, ab4yb, wqdhhi, 1ffsbk4, y6nk0j, xu180jwc, nrf, 5la,