Putty Unable To Open Connection To Com1 The System Cannot Find The File Specified, \COM1 2) avrdude: ser_open(): can't open device "\\. PuTTY is open source software that is available with source code and is developed and supported by a group of volunteers. Mar 13, 2023 · But don't know how to find a solution. Can someone please help me resolve this problem? Sep 14, 2021 · This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document. It can also communicate over a serial port, or speak various legacy Internet protocols such as Telnet. So you can get back to using Putty in no time. PuTTY is a communications tool for running interactive command-line sessions on other computers, usually via the SSH protocol. The Downloader is using a COM serial port not available in Windows. This issue is occurring on both Windows 10 and Windows 11. " the issue is solved if I manually changed it to another closer port to COM1 for example: "COM2" Dec 5, 2025 · When running the DNC Downloader provided with Fabrication CAMduct, the following message occurs: Open Comm COM1 The system cannot find the file specified. 39gewe, ykf, 8pcd9i, t1cj, t9n1dy, pt7, on0, mqp, 0qdobsh6, gcdcz,