Windows 10: USB-SERIAL FAILED

Hello, as developer i use often serial devices via USB after w11 an massiv problem comes all 3 day's back .For some Serial Devices on Industrial USB-HUB i can see that often, the ports are already listet, but not anymore connectable like blocked.The old Win XP Driver is wch.cn works on all win versions downward.The only solution with luck is deinstall all serial drivers and use refresh in Device-Manager. and all will be work again for an period of ~3 Days.Then the situation is comming back . But all ~20 times of remove and reinstall, an other dosent work situation is incomming , all ports

:)

 

Windows 10 serial on OEM


So I'll summarize steps made...

1. Saved serial number (taken with Belarc Advisory) from preinstalled (half chinese language) Windows 8.1 (don't know exactly the version, suspect Windows 8.1 with bing) on tablet
2. Formatted tablet
3. Tried to make a clean Windows 10 (HOME, HOME N and also PRO, everytime with the same result) install with ISO taken with MediaCreationTool, during install (and also after completing installation) it says that the saved serial is not valid
4. Tried to reinstall Windows 8.1 (ISO taken with MediaCreationTool again) HOME, it says that the serial is not valid

So i suspect that the saved serial, is from a WINDOWS 8.1 WITH BING OEM version and this kind of ISO is not accessible/downloadable anywhere (at least I can't find it, any suggestion?)

Still not tried SHOWKEY with that serial, I am in office now, and the serial is saved on a usb pen at home, will try this evening.

So I'm stucked but if everything is like I suspect, it's incredible. If I have a tablet/notebook/netbook with Windows 8 preinstalled, it seems that I can update to Windows 10 without problems, but if I want to make a clean Windows 10 install that serial is not valid...

 

Can't get USB to serial converter to work

Hi, here to work with you on this issue.

If Windows is indicating that the USB to serial converter won't start and suggests reloading the driver, but you've already attempted that and it still doesn't work, there are a few troubleshooting steps you can try:



1. Unplug and reconnect the USB to serial converter: Disconnect the converter from your computer's USB port and wait for a few seconds. Then plug it back in, ensuring it is securely connected. Sometimes, a simple reconnection can resolve connection issues.



2. Try a different USB port: Connect the USB to serial converter to a different USB port on your computer. It's possible that the current port you're using is experiencing problems, and trying a different one might help.



3. Restart your computer: Sometimes, a system restart can fix driver-related issues. Restart your computer and see if the USB to serial converter starts working after the reboot.



4. Update the driver manually: Even if Windows claims the correct driver is installed, there's a possibility that it may be outdated or corrupted. You can try manually updating the driver by following these steps:



a. Go to the Device Manager by right-clicking on the Start button and selecting "Device Manager" from the menu.



b. In the Device Manager window, locate the USB to serial converter. It might be listed under "Ports (COM & LPT)" or "Universal Serial Bus controllers."



c. Right-click on the USB to serial converter and select "Update driver" from the context menu.



d. Choose the option to manually search for the driver. You can either provide the specific driver file if you have it or let Windows search online for the latest driver version.



e. If Windows finds an updated driver, follow the on-screen instructions to install it. Once the installation is complete, restart your computer and check if the converter starts working.



5. Contact the manufacturer's support: If none of the above steps resolve the issue, it's recommended to reach out to the manufacturer's support for further assistance. They may provide specific troubleshooting steps or advice tailored to your USB to serial converter model.



Remember to provide as much information as possible when contacting support, such as the make and model of the USB to serial converter and the version of Windows you're using.

I hope this is helpful. If you require any additional assistance, don't hesitate to respond to this.

Regards,

 

How to factory reset Cisco 1700 Router

Hopefully I can help you here....its a very common thing to happen.


First, I take it you dont know the passwords for console access or telnet/ssh?

I will assume that these devices belong to you.

step 1. Plug a cisco console cable into a serial port on your pc
step 2. Plug other end into Cisco console port
step 3. Using hyperterm or putty or similar connect to the serial port
step 4. boot router, and make sure you clearly can see the output (this confirms you have good serial comms)
step 5. if this fails, adjust the comm port settings (9600, 8,1,n are the default)
step 6. now you have to do the only hard part...send the break command:

Break command list: Break Commands

Go down the list and match your OS and SW and try the sequence suggested.

If this fails several times do what I do: Install putty (free) and then to send a break so you can get into rommom just hit "ctrl-a b".