Windows 10: Can't Open Com Port

I am running into an issue with multiple hardware devices and multiple applications when I try to connect to a USB device, Like a USB to serial converter, applications show com port in use or can't open com port, the work around I have found is to connect to the devices within a few seconds of it being plugged in to the USB port. one application i am using is putty to open a terminal on a com port with a USB to serial device connected, it work fine when I connect using the work around but shows can't open COM4 if the device has been connected for longer than a few seconds. Any help on this would be greatly appreciated!!

:)

 

USB Port Oddities


Ok, let's see it with pictures step-by-step. First right-click on the USB device and select Update driver software:





Then select Browse my computer for driver software (LAST option) :





The select Let me pick from a list of device drivers on my computer (LAST option) :





Then select the standard driver from the list and click next:





Click next/OK as required to complete installation. Repeat the steps for all Intel USB devices. Finally click on each USB root device and press DEL to delete it, reply YES when asked. After deleting all USB root devices restart the computer.

I hope this is detailed enough...

 

Port is being blocked

Hi,



Thank you for writing to Microsoft Community forums.

• Are you aware of any changes that happened on the computer prior to this issue?
  

Upon researching, this seems like an issue due to the port scan. You may want to try the steps listed below and check if it works.

• Login to your Netgear
  NX6200 Extender GUI.
  
• Click on Advanced tab and choose
  WAN Setup.
  
• Check the box for Disable Port Scan and DoS Protection.
  
• Allow it to update and check if the port is still being blocked.
  

However, if the issue persists, I suggest you to post your query in the
TechNet Forums, where we have support professionals
equipped with knowledge on port forwarding.



Regards,

 

ISP Blocking Port Forwarding Conspiracy???

I've come across a few posts that suggest that some cannot open/forward ports from their modem. It's been suggested that it's a direct result of ISPs trying to crack down on torrenting. However, I am not sure how true this is. Is there a way to test this? Is there a way to see if a port is forward on your modem if it's open or not?