Putty unable to open connection to com1 error 2, 2016 à 13:13 Bonjour , je suis en période de stage , mon encadrant de stage ma confié un switch cisco pour le configurer , il est neuf comme il m'a dit ; Jan 23, 2024 · The RDP connection is successful, except that the COM port data is not being passed over from the PC. The following screenshot shows my configuration for the serial port and the settings in PuTTY. \COM1': Error 2: The system cannot find the file specified. Mar 13, 2023 · "can't open device "\\. Unable to open connection to COM1 Putty? Learn how to troubleshoot this common problem with our step-by-step guide. So you can get back to using Putty in no time. Follow this guide to fix it fast. When I try to open the COM port using Putty I get: " Unable to open connection to COM1. . May 13, 2025 · Unable to Open Connection to COM1: 7 Ways to Fix The world of computers and technology is characterized by its complexities and nuances, especially when you’re interfacing with hardware through serial ports. See full list on windowsreport. Whenever I try connecting to it, it always give me error: Unable to open connection on myhost: Host does not exist My firewall is off and I have even re-installed putty but that did not 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. Dec 28, 2023 · 2 Spice ups netcacique (netcacique) December 28, 2023, 4:28pm 2 Try this article: Unable to Open Connection to Com1: 8 Ways to Fix benjamin-g (Benjamin G. I am able to connect all others except the one. ) December 28, 2023, 7:16pm 3 May 30, 2015 · 8 I am using Putty to ssh into some of the servers that I work on. Sep 14, 2021 · Unable to open connection to COM1 Opening '\\. Although I was able to connect to it before. We'll cover everything from checking your settings to reinstalling the drivers. Dec 17, 2019 · 31 I want to connect with my serial Port using the PuTTY program, but it's not possible: When I click “open” nothing happens, I only hear a “Beep, Beep …” under a Windows 7 or MAC OS X with VirtualBox. Then I click open. com Nov 28, 2022 · 2 I am using windows 7, 64bit I have a MKS gen l connected to a usb port The CH340 com port emulation driver converts USB in to a virtual com port, com 5, baudrate 115200. Same settings as USB port emulator. \COM1": The system cannot find the file specified" Projects General Guidance kartik1955 March 13, 2023, 1:55pm Jun 6, 2024 · 以上是我碰到的“报错Unable to open connection to :Unable to open serial port”问题的解决办法，记录一下。 1、连接开发板，若用Windows排查，打开设备管理器，可以看到，我这里的CH340驱动正常显示，若端口无法正常显示驱动，考虑重新安装。 Feb 1, 2016 · Putty pas accès au port série Résolu Port Connection System Zouhaiir - Modifié par brupala le 1/02/2016 00:58 brupala - 2 févr. When I run putty I enter serial option change com1 to com5, change baudrate to 115200. Jan 23, 2024 · The RDP connection is successful, except that the COM port data is not being passed over from the PC.
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