For many Amazon apps, many customers have reported receiving the dreaded “Amazon App CS11 Error” (Amazon Prime, Amazon Shoppers, etc.). While Apple products like the iPhone, iPad, and iPod touch account for the vast majority of reports of the problem, instances on other platforms like Android have also been documented.
This occurs when the user launches the Amazon app or tries to access a certain feature, such as the Amazon Shopping app’s cart and accounts section.
Method 1: Take Advantage of Amazon’s Latest App Version
If you’re using an outdated version of an Amazon app (like Amazon Prime, Amazon Shopping, etc.), you may see error CS11. In this case, updating the Amazon app to the most recent version could fix the Amazon App CS11 Error problem.
But first, make sure the Amazon app is supported by Amazon’s servers (as Amazon restricts usage of some Amazon apps on older phones or devices).
Step 1: Simply to the Apple App Store and look for the Amazon app (like Amazon Prime).
Step 2: Click on the app’s Details page to verify that you have the most recent version installed. The App Store’s Updates section is another place to go to see if any apps require updating.
Step 3: Once the update is complete, restart your iPhone and open the Amazon app to see if the CS11 error has been resolved.
Method 2: Download the Amazon App Again.
Amazon app CS11 error? Try uninstalling and reinstalling the Amazon app to see if it helps.
Step 1: It’s time to fire up the Apple Software Store and hunt down that faulty Amazon app (like Amazon Shopping).
Step 2: It’s time to head over to the app’s info page and hit the Uninstall button (or disable, if the app is preinstalled). On the iPhone’s home screen, you can also long-press the app’s icon to get the Uninstall menu.
Step 3: After the Amazon app has been removed from your iPhone, you should restart your device and then reinstall the app from the App Store.
Step 4: Start up the faulty Amazon app and see if the CS11 error has been fixed.
Method 3: Turn off Firewall Software or Create Exceptions for Amazon
If a network firewall (such as PiHole) is preventing the Amazon app from connecting to its servers or needed domains, you may see an error message reading “Amazon App CS11 Error.” This issue may be resolved by either temporarily turning off the network firewall or permanently whitelisting the necessary Amazon domains.
In order to clarify, we will go over how to disable PiHole (a network firewall) on a Windows machine; nevertheless, you should follow the specific instructions provided by your firewall and your operating system.
Warning:
You’re going into this blind, so proceed at your own risk; messing with the firewall settings or turning it off could leave your network and all of its associated devices vulnerable to attack.
Step 1: Find the Command Prompt by searching for Windows.
Step 2: Simply right-click the result for Command Prompt and choose Run as Administrator from the resulting menu.
Step 3: Perform the steps below now:
pihole
Step 4: Once the PiHole interface is invoked, execute the following in the Command Prompt:
pihole disable
Step 5: It is hoped that after disabling PiHole, the contaminated Amazon app will no longer include CS11. If that’s the case, you’ll want to make sure that PiHole doesn’t connect to any Amazon domains. In most cases, you’ll need to add the following domains:
aax-us-east.amazon-adsystem.com
fls-na.amazon.com
amazon-adsystem.com
Step 6: Following that, in an elevated command prompt, re-enable PiHole by entering:
pihole enable
