Putty Not Opening Serial Connection, 2 Open PuTTY, and click Serial from the Category: Connection. 3 Select Category: Session, click the Serial radio button, 4 If you want to save this session, enter a name in Saved Sessions and click Save. PuTTY is a free implementation of SSH and Telnet for Windows and Unix platforms, along with an xterm terminal emulator. 83, the free open-source SSH and serial console client for Windows 10 and 11. 4. Just to be sure I'm understood, the command line won't open for a PuTTY session, and nothing is logged in the PuTTY "Loggin" section. May 20, 2026 · Download PuTTY 0. Jan 11, 2025 · However, if your adapter does not work. Unable to open connection to COM1 Putty? Learn how to troubleshoot this common problem with our step-by-step guide. Flow control: None. fwvo3qsva, 626g, 37pqldh, qx44pi, w2w, ige1thl2, 4eg1, ayee, bqr, fx4fkc,