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USB Console Driver and Windows 7

I just purchased a USB to Mini-USB console cable to use with the 2960s switches we just bought.  I download the current(?) driver Ver. 3.1 loaded it on my Win 7 64-bit laptop.  It installs ok but when I try to use it with Putty, Putty comes back saying it can't access the port.  I noticed the driver says it's for Win XP and Win Vista.  Is there a newer driver for Win 7?  Any other ideas?

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‎01-23-2014 07:39 AM
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Under Win7 Device Manager can you see the new COM port listed?

New Member

Yes, It maps it as COM3.  It shows the driver as enabled and working properly.  But when I try to access that port via Putty, Putty errors with 'Unable to open connection to COM3. Unable to open serial port.'

New Member

The way to tell the installation of the Cisco USB driver is good and the connection is good is as follows:  Open the Windows Device Manager, navigate to the Ports (COM & LPT) section and open the section so you can view the indivicual Ports, plug the cable into the PC and the Cisco router and you'll see a new port appear, typically COM4 which is the default as setup by the Cisco USB Console driver.  If you unplug the cable, the port will no longer be listed, plug it back in, and it will be listed.  The response time between connecting the cable and seeing the result in Device Manager is < 5 seconds.

Now, if you use HyperTerminal, TeraTerm, or any of your favorite terminal emulation programs that can communicate via a Serial Port, you may encounter "Cannot Open Com4" when you attempt to connect to the router with your terminal emulation program.

If this is your problem, connect the PC to the Cisco router so the port appears in device manager, right click on the port and select Update Driver Software, select Browse my computer for driver software, select Let me pick from a list of device drivers on my computer, and select Cisco Serial (there will be 2 choices, Cisco Serial and USB Serial Port.  The driver "Cisco Serial works <and> the USB Serial Port driver doesn't work.

New Member

Thank you...Mark Nickson......your solution worked perfectly...........been searcing on the web for three hours..........

New Member

Thank you Mark! 

New Member

Thanks Mark,

     Choosing the Cisco driver was the key. 

New Member

Thank! It is work!

New Member

For me it did the trick as well. Thanks!

New Member

I was trying to connect the usb and I followed your directions in the last paragraph, even though it was usb and it got me going. Big Thank!! Been hacking at this for 30 minutes. I reinstalled this sucker like twice and repaired it once, rebooted 3 times. I shouldn't have to go through this, but hey, this is why we get the big bucks I guess.

 

Dear Cisco,

 

Please put this in a troubleshooting doc for the USB. Ridiculous. I don't think I would've figured this out on my own.

Cisco Employee

I'm ashamed to say it, but I work for Cisco and I wasted a little time looking for this also.  I'm old school and have used the traditional RS-232 setup my entire career (over 25 years).  This post is one of those rare gems!  I never would have figured this out on my own. 

By they way, mine mapped as COM7.  You can find the COM port in the Windows Device Manager.

New Member

this solve my problem 

New Member

You rock!!

New Member

It works fine for Windows 7 but not for Windows 8 :-(

Thanks!

 

Sorry It works fine but I had to delete the USB Serial Port, Download the latest driver and reinstall. After that I used the same solution as Windows 7. Changed the USB Serial Port to the Cisco Serial.

New Member

Worked on windows embedded 8.1 industry pro x64. Thanks!

New Member

Thank you, works fine!

New Member

In the Device Manager you may have to try different COM Ports, until you find one that works.. Usually, its COM 2 or  COM 3 in my case.  Question, Can you even download these from Cisco Any more ? I would like the link, if you still have it.

 

Thanks

New Member

Here's the software and the link

https://software.cisco.com/download/release.html?mdfid=282774228&softwareid=282855122&release=3.1

New Member

I get all the way to the Cisco Serial driver and it fails to install.  I am on windows 8.1 and this is the closest I have come to getting the USB console cable setup.  Any ideas?! thanks! 

New Member

In theory Win 8.x and Win 10 should be close to Win 7 (this is the reason why Microsoft is confident enough to encourage Win 7 and Win 8 users to perform an in-place upgrade to Win 10 for free, if it's not highly compatible, Microsoft will be tortured by support requests / complaints).

With that said, the difficulty you're experiencing may be different than what I encountered.  I wish I had experience with Windows 8.1, but my limited experience has been with Windows 10 as part of the preview program.  I would perform a test of the Cisco package on Windows 10 but Win 10 was erased from the computer was using in the lab a week ago (so the computer could be used by another staff member and the Microsoft Win 10 preview program has ended now that it's in production, thus I don't have a reference Win 10 platform currently).

New Member

I have the same problem and your solution works fine, so much tanks.

 

 

I have Win8.1 and worked fine after selecting the Cisco Driver :)

Thanks Mark,

The same procedure applies for the MINI console port on the Wireless Controllers. So I am attaching to this post a detailed procedure with screenshots so anyone can follow it.

New Member

It takes me 15 min to login and create account in cisco.com in order to reply to this thread.

I still do, in order to say a thanks here :)

New Member

That did the trick! What bothers me is that I was accessing the router correcty from USB Console at COM3. I just unplugged the cable and turned off the router in order to get it installed and screwed in its rack and then.. *POOF* I got that "Cannot Open port COM3" after the router was rebooted.

So beware ppl! that error can just pop out at your machine for no apparent reason.

The driver update solution works like a charm!

New Member

Thanks Mark worked here as well!

New Member

Thank you.

key bit is this step:

""select Let me pick from a list of device drivers on my computer, and select Cisco Serial""

which I missed when initially read the info.

Neil

Thank you Mark!

Last case - to pick "Cisco Serial" works fine for me at Windows 10 .

Update for Windows 10 :

The problem happens again. Now, I should choose USB Serial Device, which is Microsoft's driver. But works ... It is unexplicable.

New Member

Thank you Mark