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[Solved] Error code 21001 online banking

5 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

While trying to log into your online banking account, you may run into anerrorthat reads:We are unable to access your online banking account. Please contact us at [Banks Phone Number] (errorcode: 21001).

Thiserrorcode isn’t restricted to accessing online banking on your computer. You may see it on your cellphone, gaming console, or any other device that can connect to the Internet.

The cause (and solution) is virtually the same on all devices. Learn about it in the guide.

The 21001errorcode is generally caused by port issues or misconfigured Internet settings – particularly DNS settings. The remedy to thiserrormay be as simple as changing your browser or as complicated as reconfiguring your Internet connectivity settings.

We’ll walk you through everything in this guide.

How can I solve an online banking 21001 error code?

1. Ensure that you have a stable Internet connection

It may seem pretty obvious but we often overlook the simplest solutions when we troubleshoot. It’s quite possible that you’re either not connected to the Internet or your connection is slow.

If you’re getting ping responses above 150 ms, then your Internet connection is painfully slow.

If it gives you a message that reads:Ping request could not find host www.google.com. Please check the name and try again, then you’re not connected to the Internet at all and this is the root cause of the online banking 21001 error code.

If the request times out, then you have a very choppy connection. Either way, make sure to check your router, cables, and any other devices that you use to connect to the Internet. If the problem persists, you’ll need to get in touch with your ISP.

2. Use a different browser

Browsers such as Internet Explorer have stringent security rules. DespiteInternet Explorer being slow, it’s one of the safest browsers to use on the Internet.

However, this safety can come at a cost.

We know antivirus can detect false negatives. So can Internet Explorer.

Simply put, your browser may be Interfering with your access to your online banking. If you decided not to use Opera One to ensure your online safety, try downloadinganother browser.

For this reason, the safest bet is for you to change your browser to Opera One.

This super-speedy browser ensures that you will never have your data stolen or used by other third parties, as it contains an incredible array of security features. Plus, it comes with a native AI.

However, if you’re in a situation where you’re stuck withInternet Exploreror the browser you’re using, you can try changing its security settings.

⇒Get Opera One

3. Flush your DNS cache

After clearing theDNS cache, you’ll see a message that reads:Successfully flushed the DNS Resolver Cache.

If your bank recently changed the IP address or domain that connects you to their Online Banking, then your computer may be working with some outdated information. Flushing the DNS cache should resolve the error code 21001 online banking problem.

If it doesn’t, we still have a few more suggestions left in this guide.

4. Use Google Public DNS IP addresses

With the above steps, we change the domain name servers that your ISP assigns to ones that Google assigns (Google Public DNS). This solution should solve the online banking 21001errorcode.

However, if this solution fails, we suggest you change the settings back to the default.

Furthermore, if none of these solutions worked for you, this may indicate that there’s a problem with your online banking provider.

You can either wait for the situation to resolve itself or call your bank to find further assistance.

Either way, we hope that you’ve found this article to be helpful. Please leave a comment down below. We’d love to hear from you. As always, thank you for reading.

[Solved] Error code 21001 online banking#

How can I solve an online banking 21001 error code?#

1. Ensure that you have a stable Internet connection#

2. Use a different browser#

3. Flush your DNS cache#

4. Use Google Public DNS IP addresses#