Unable To Open Connection To Com1 Putty Windows 11, A server r

Unable To Open Connection To Com1 Putty Windows 11, A server refusing a connection is different from network timeouts, wrong routes and similar problems. Feb 8, 2025 · Windows 11 updated to latest Putty updated to latest Teraterm installed and the same exact problem Two different sets of previously good serial cables tried Drivers updated cor serial devices and said to be current Different USB ports on laptop tried,… Feb 16, 2021 · Learn more about: Unable to get serial port names because of an internal system error Describes how to resolve a problem that returns an error when you try to set up a connection on a TCP port greater than 5000. I'm using the following: -Windows 7 Professional computer that has a serial port -Putty software -serial to rj-45 cable -Cisco Catalyst 2900 series XL switch My Putty settings are the following: serial line com3 speed 9600 da Serial connection with putty on Windows OS If you are trying to connect with a USB-to-DB9F cable (null-modem / serial cable) on Windows using putty, you are in the right place. This post shows how to fix it. . May 27, 2022 · The next time you run putty. spiceuser-vnmtw (ZeroXrd) January 2, 2024, 1:24pm 4 netcacique: Try this article: Unable to Open Connection to Com1: 8 Ways to Fix Jan 9, 2011 · Greetings, I'm trying to connect via serial to rj-45 to a Cisco Switch. exe from Windows Start Menu or Windows Explorer (which both work from explorer. " Try different COM ports. I also tried using PuTTY to communicate, but it also didn't work. \COM1": The system cannot find the file specified". Aug 8, 2025 · If you get an "Unable to open a connection to com1" message, you won't be able to use your serial port. 79 on MS Windows 10 Pro. plink. If you are connecting to the instance from a Windows client using PowerShell, plink. Dec 28, 2023 · That usually happens to me when I haven’t properly installed the USB-Serial drivers. I want to SSH in to the Pi, so I have installed PuTTY. Apr 27, 2023 · A Windows 11 / 10 computer has a built-in SSH client and a server – meaning it can be used to connect to a remote PC using SSH, and it can be connected to as well. \COM1': Error2: The system cannot find the file specified. Aug 14, 2025 · PuTTY is a free implementation of SSH and Telnet for Windows and Unix platforms, along with an xterm terminal emulator. We'll cover everything from checking your settings to reinstalling the drivers. I checked in all possible places like port selection, board selection, port driver, using a data cable and all other possible options. May 13, 2025 · The "Unable to open connection to COM1" error can be exasperating, but understanding its causes and implementing the appropriate solutions can help you navigate this issue efficiently. However, there are no USB restrictions, and the proper drivers have been installed. See full list on windowsreport. That way I fixed the issue with starting putty 0.

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