Unable to open connection to COM Error 5 acceso denegado, puerto com

Question

Buen dia, necesito ayuda cada ve que intento conectarme a un switch o ruter utilizando el puerto consola usando mobaXterm, putty o hyperterminal me dice acceso denegado y no puedo entrar al dispositivo, ya reinstale los drivers del serial port, he asignado otro com del 2 al 6 y no me funciona, dejo una imagen del mensaje que me sale.

Si alguno le ha pasdo esto y ha logrado resolver, agradeceria que comparta.

Answer 1

Hello,

Usually the main reason for serial port communication issues can be fixed with the next checklist:

1. Check if the cable is in good condition and it follows the manufacturer standards (some manufacturers would change some of the I/O routing)
2. Check the setting for the connection on the connection tool (MobaXterm, but you can try with PuTTy as well) such as baud rate, data bits, parity, stop bits, etc.
3. Check for conflict with other ports such as DMA or IRQ that would prevent the communication
4. Ensure that drivers for both COM ports and device are successfully installed
5. Temporary disable or check for setup of your anti-malware or firewall as they could be blocking the COM connections

Hope this resolves your Query !!

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