If you've encountered Ticketmaster Error Code U120, you're not alone. Many users experience this error while trying to purchase tickets for concerts, sports events, theater shows, or other live entertainment. Seeing an unexpected error message during checkout can be frustrating, especially when tickets are selling out quickly.
Whether you searched for ticketmaster error code u120, error code u120 ticketmaster, error code: u120 ticketmaster, ticketmaster error code: u120, ticketmaster u120 error code, or u120 error code ticketmaster, this guide explains everything you need to know.
In this article, you'll learn what Ticketmaster Error Code U120 means, its common causes, practical troubleshooting methods, and tips to prevent it from happening again.
Ticketmaster Error Code U120 is generally an account or transaction validation error that occurs when Ticketmaster cannot complete your purchase request. The issue may be related to your account, payment information, browser session, network connection, security verification, or temporary server problems.
The error can appear during several stages of the buying process, including:
Logging into your Ticketmaster account
Selecting seats
Adding tickets to your cart
Proceeding to checkout
Processing payment
Confirming your purchase
The exact reason behind the error can vary from one user to another.
Several factors can trigger this error.
If Ticketmaster's servers are experiencing heavy traffic during popular ticket releases, the platform may temporarily reject transactions.
Large concerts and sporting events often generate millions of requests within minutes.
Old cookies or corrupted browser cache can interfere with Ticketmaster's authentication process.
This is one of the most common reasons users experience unexpected checkout errors.
Logging into the same Ticketmaster account on multiple devices or browsers may create session conflicts.
This can trigger Error Code U120 during checkout.
Incorrect payment details or failed verification checks may prevent Ticketmaster from completing your order.
Possible payment issues include:
Incorrect billing address
Expired card
Payment authorization failure
Bank security restrictions
Using a VPN, proxy server, or anonymizing service can sometimes trigger Ticketmaster's fraud detection systems.
The platform may block suspicious traffic to protect ticket sales.
An unstable internet connection may interrupt communication between your browser and Ticketmaster servers.
This interruption can generate validation errors.
Ticketmaster actively detects unusual browsing behavior to reduce bot purchases.
If your activity appears automated, your request may be temporarily blocked.
Certain browser extensions can interfere with Ticketmaster.
Examples include:
Ad blockers
Privacy extensions
Script blockers
Security plugins
Users experiencing this error commonly notice:
Unable to complete checkout
Tickets disappear from cart
Payment fails unexpectedly
Continuous loading screen
Error message appears after clicking "Purchase"
Login session expires repeatedly
Account verification issues
Here are the most effective troubleshooting methods.
Sometimes the issue is temporary.
Refresh the webpage and restart the purchasing process.
Avoid repeatedly clicking the checkout button.
Cached files may cause Ticketmaster to load outdated session information.
Steps:
Open browser settings.
Clear cookies and cache.
Restart your browser.
Log in again.
Private browsing creates a clean browser session without existing cookies.
Try purchasing tickets in:
Chrome Incognito
Firefox Private Window
Edge InPrivate
If the problem continues, switch browsers.
Popular choices include:
Google Chrome
Microsoft Edge
Mozilla Firefox
Safari
Turn off any VPN or proxy connection before accessing Ticketmaster.
Use your regular internet connection instead.
Double-check:
Card number
Expiration date
CVV
Billing address
ZIP or postal code
Ensure all information matches your bank records.
Sometimes the bank blocks large or unusual transactions.
Ask whether:
The payment was declined
International transactions are enabled
Security verification is required
Sign out of Ticketmaster.
Wait several minutes before logging back into your account.
This refreshes your authentication session.
Temporarily disable:
Ad blockers
VPN extensions
Privacy tools
Security plugins
Reload Ticketmaster afterward.
A simple restart clears temporary software conflicts.
Restart:
Computer
Smartphone
Tablet
Then try purchasing again.
If the website doesn't work on your computer, try:
Mobile browser
Ticketmaster mobile app
Another computer
Sometimes device-specific issues trigger Error U120.
If Ticketmaster servers are overloaded, waiting 15–30 minutes may solve the problem.
High-demand ticket sales often stabilize after the initial rush.
You can reduce the chances of seeing this error by following these best practices.
Modern browsers include compatibility improvements for secure websites.
If using the mobile app, install the latest version.
Updates often include bug fixes.
Sign into your Ticketmaster account before ticket sales begin.
This reduces login-related delays.
Store your preferred payment method securely in advance.
This speeds up checkout.
Only use one active Ticketmaster session.
Opening several tabs can confuse the checkout system.
Use reliable Wi-Fi or a stable wired connection.
Avoid switching between mobile data and Wi-Fi during checkout.
Keep browser extensions to a minimum while purchasing tickets.
If you've tried every troubleshooting step and Error Code U120 Ticketmaster still appears, it's time to contact Ticketmaster support.
Provide the following information:
Your Ticketmaster account email
Device type
Browser version
Operating system
Exact error message
Event name
Date and time the error occurred
Screenshots of the error (if available)
This information helps support investigate the issue more efficiently.
Not always. While payment verification can trigger the error, it may also result from browser issues, account authentication problems, network interruptions, or temporary server overload.
No. In many cases, the purchase simply did not complete. If you're unsure whether your order went through, check your Ticketmaster account and your email confirmation before attempting another purchase.
Yes. VPNs and proxy services may trigger Ticketmaster's security systems, resulting in authentication or checkout errors.
It often helps. Corrupted cookies or outdated cached files are common causes of Ticketmaster checkout errors.
Sometimes. If the issue is related to high website traffic or temporary server maintenance, the error may resolve itself after a short wait.
Yes. If one device continues showing Error Code U120, switching to another browser, smartphone, or computer may resolve the issue.
Encountering Ticketmaster Error Code U120 can be frustrating, particularly when you're trying to secure tickets for a popular event. Fortunately, the issue is often caused by temporary server congestion, browser conflicts, payment verification problems, or account session issues. By clearing your browser cache, using a single login session, disabling VPNs and extensions, verifying your payment details, and ensuring a stable internet connection, you can usually resolve the problem quickly.
Whether you searched for ticketmaster error code u120, error code u120 ticketmaster, error code: u120 ticketmaster, ticketmaster error code: u120, ticketmaster u120 error code, or u120 error code ticketmaster, the troubleshooting steps in this guide should help you identify the cause and get back to purchasing tickets with confidence. If the problem persists despite trying all recommended fixes, contacting Ticketmaster support is the best next step for personalized assistance.