How to connect to itunes - Apple iPod touch

"iTunes could not connect to the iPod because an invalid response was received from your device" troubles a lot of users.
iTunes Could Not Connect to the iPhone iOS 10 iTunes Invalid Response...

Here are the best four methods for you to refer to fixing this iTunes could not connect to the iPhone invalid response problem, via updating iTunes and iPhone, uninstalling and reinstalling iTunes, and using iTunes alternative.

connect the pad to your computer and open iTunes, turn off the ipad, then hold both the lock and the home button for 10 seconds, then release the lock button while continuing to hold the home button until iTunes recognizes the iPad.

iOS Device not recognized in iTunes for OS

iTunes for Windows iTunes can contact the iPhone iPad or iPod software...
If you can access your device's settings menu and connect to Wi-Fi, install the latest version of iOS over Wi-Fi using Settings > General > Software Update. If your device is locked with a forgotten passcode or in recovery mode, you will need iTunes to restore the device.
If one of the alert messages above appears when you try to update or restore your iOS device, connect to the Internet with your preferred web browser, and access the iTunes Store.

If you cannot connect to the Internet with your web browser

If you can connect to the Internet, but see an error when accessing the iTunes Store

If the iTunes Store shows a blank white page

If the iTunes Store opens successfully

After updating OS, you may receive "iTunes could not connect to the iPhone because an invalid response was received from your device".
iTunes Could Not Connect to the iPhone iOS 10 iTunes Invalid Response...
Here are the best four methods for you to refer to fixing this iTunes could not connect to the iPhone invalid response problem, via updating iTunes and iPhone, uninstalling and reinstalling iTunes, and using iPhone alternative.

ResolutionClick on the description below that most closely matches your iTunes Store situation:

• I have been unable to connect to the iTunes Store...
  • for less than 24 hours.
  • for more than 24 hours on a Mac.
  • for more than 24 hours on Windows.
• I have never been able to connect to the iTunes Store on this computer.

I have been unable to connect for less than 24 hours Try quitting iTunes and reopening it. If the issue persists, it's possible the store is temporarily unavailable for maintenance. Try again in a few hours. You might want to check the iTunes Store discussion board to see if a connection issue is impacting many other iTunes Store customers.
iTunes Store Discussion Board (Mac)
iTunes Store Discussion Board (Windows)
I have been unable to connect for more than 24 hours on a Mac. If you haven't been able to connect to the iTunes Store for more than a day—and other customers on our discussion boards aren't experiencing similar issues—a software or internet service provider (ISP) configuration issue may be blocking your access to the iTunes Store. Click here to find out which ports and servers need to be allowed for iTunes Store access.

• Your copy of the iTunes application may be out of date. If iTunes is out of date, it will not be able to connect to the iTunes Store. You can download the latest version of iTunes from our website:
  http://www.apple.com/itunes/download/
  
• You may need to reset your keychain. Connection issues are occasionally caused by keychain issues. Click here to find out how to use Keychain First Aid to resolve this issue.
  
• You switched to a new ISP. If you didn't install new networking hardware, your ISP may be blocking access to the iTunes Store. Let your ISP know about article TS1629 which can help your them configure their servers to allow iTunes Store traffic through.
  

I have been unable to connect for more than 24 hours on Windows. If you haven't been able to connect to the iTunes Store for more than a day —and other customers on our discussion boards aren't experiencing similar issues— a software or internet service provider (ISP) configuration issue may be blocking your access to the iTunes Store. Click here to find out which ports and servers need to be allowed for iTunes Store access.

• If you have not done so, try the steps in this article to troubleshoot iTunes Store connectivity in Windows.

• Your copy of the iTunes application may be out of date. If iTunes is out of date, it will not be able to connect to the iTunes Store. You can download the latest version of iTunes from our website:
  http://www.apple.com/itunes/download/
  
• You upgraded to Windows XP Service Pack 2. Windows XP Service Pack 2, by default, enables the Windows Firewall. As with a third-party firewall, you will need to configure Windows Firewall to allow iTunes to access the iTunes Store. To do so:
  
  1. From the Start menu, choose Control Panel.
  2. If the Control Panel is in Classic View, skip to step 3, otherwise open Security Center.
  3. Open Windows Firewall.
  4. Click the Exceptions tab.
  5. Select the iTunes checkbox to enable it as shown here:
  6. 1. 
     2. Click OK.
     If you have further questions about configuring the Windows Firewall, contact Microsoft's Service Pack 2 hotline at (888) SP2-HELP. Read this article for compatibility information.
     
  7. You switched to a new ISP. If you didn't install new networking hardware, your ISP may be blocking access to the iTunes Store. Let your ISP know about this article which can help your them configure their servers to allow iTunes Store traffic through.
     
  8. The "hosts" file may be blocking the iTunes Store Instructions for Windows 2000 and XP: Find your hosts file. The hosts file is normally found in the following locations:
     
     Windows XP: C:WINDOWSSYSTEM32DRIVERSETC
     Windows 2000: C:WINNTSYSTEM32DRIVERSETC
     
     
     1. Select the hosts file. Then click the Edit menu, and choose Copy.
     2. Then, click the Edit menu again, and choose Paste. There should now be a duplicate of the hosts file named "Copy of hosts".
     3. Drag the original hosts file to your desktop.
     4. Right-click the "Copy of hosts" file and choose Open. You may be prompted to choose the program you want to use to open this file. Double-click Notepad.
     5. When Notepad opens, click the Edit menu and choose Select All. Then click the Edit menu, and choose Delete.
     6. Click the File menu, and choose Save. Close Notepad.
     7. Right-click the "Copy of hosts" file, and choose Rename. Type "hosts" (without quotation marks) and press Enter.
     8. Restart your computer and try connecting to the iTunes Store.
  • Make sure that your computer meets the iTunes minimum system requirements.
  • Make sure that your operating system is up to date:
    • For Mac OS X, use Software Update to determine if you need to update your system.
    • For Windows, go to Microsoft's Windows Update webpage.
  • Make sure that you can access the Internet on your computer.
  • You may have firewall or other security software that is preventing your computer from connecting to the iTunes Store. Click here to find out which ports and servers need to be allowed for iTunes Store access.

If your iPod has the 'Connect to iTunes' symbol, you will need to connect it to a computer running the iTunes software. You can't just use the iTunes website to do this. Once you connect it, iTunes will perform the necessary steps to fix or activate (if it's new) the iPod.
iTunes is available from http://www.apple.com/itunes/download/

Many connection issues can be resolved by configuring Internet-filtering software to recognize the iTunes application and the iTunes Store addresses (listed below).
(The following iTunes Store Internet addresses should be added as trusted domains to any filtering software that may be running:)

itunes.apple.com

ax.itunes.apple.com

albert.apple.com

You can configure your Internet software to allow iTunes to access the Internet. If you're using Norton Personal Firewall or Norton Internet Security, you will need to enable iTunes in your Firewall settings.

I don't know your iTunes version, if it is the latest version, I think it will work smoothly. And the current version of iTunes is 9.0.2, you can get it here:
http://softsbay.com/download/iTunes-81.html
Good luck

Go on to itunes and plug your mp3 in to your computer
and download it and salect which tunes you want. If it dose not work
there is somethind wrong whith your mp3

I had added a proxy to my internet explorer while trying to access another intranet. I always use Firefox so I didn't think it would matter if it was set to the intranet IP as the proxy, but apparently itunes and some other programs blindly copy the proxy settings from explorer and will stop working. everything was fixed when I disable the proxy in the connection tab.