Try clearing your browsing history!  I just did that and was  finally able to get on.

I am used to using the App on my computer and it wasn't working.  I just got it to work by selecting "help" and then "re-set app data"  Glad to be back up and running.  Thank you.

It came back up at the end of the day yesterday, but it is doing it again today. 

Hello, @cadet001. 

We recently had an issue with logging into QuickBooks Online. However, this was already closed and resolved. Since you’re still unable to log in to the account, I suggest clearing your browser’s cache.

Check the following article for detailed guidance: Clear your browser cache and temporary Internet files. 

You can also use other browsers like Chrome, Safari, Edge and the like if you're unable to log into your account in the browser that you're currently using.

Let me know if you still need help with logging in to your account. I'm always here to assist. 

i want anwer for 504 time out 

[email address removed]

Welcome to the Community, @gary15.

I've checked here and no longer found any open ticket about the 504 Gateway Time-out error message. I recommend you follow the basic troubleshooting provided by my colleague above to fix the problem.

Since the Community is a public forum, I'm unable to review the account without asking for sensitive information. If the error continues, I suggest reaching out to our QBO Customer Care Team.

One of them will need to take over and ensure you'll be able to get rid of the error. Here’s how:

1. In your company, go the Help icon to choose Contact Us.
2. Type the issue/topic under the What can we help you with section and then hit the Let’s talk button.
3. Scroll down to select the Get a callback option and then enter your contact information.

You can reach them within this time: Monday to Friday from 6:00 AM – 6:00 PM and Saturday 6:00 AM - 2:30 PM PST.

I’m attaching an article with detailed lists on the latest enhancements added to the product. Aside from that, it contains some links on how to efficiently run the business: QuickBooks Blog.

Please know the Community has your back. If you have additional questions, click the Reply button and post a comment. I’m here ready to assist further. Enjoy the rest of the day.

This just worked for me too. Just got it working today after 2 days. Thanks! 

I am still having the same problem, cleared what I could but still the 504 Gateway time out, need help cause this is terrible. Glad I still do some things manually. HELP.

The error happens if the internet connection is interrupted, forrest1. 

Aside from clearing the cache, we can also access QuickBooks through any of our supported browsers like Google Chrome, Internet Explorer, or Mozilla Firefox.

If the same thing happens, I'd recommend reaching out to us so we can check if there are issues with the server. Our Customer Support Team can also perform advanced troubleshooting steps. Please refer to the steps given by my colleagues above on how to contact us. 

If you have further questions, you can always post them here.

I have cleared until my witts end, Still have 504 Gateway time out. I GIVE UP.

We want this fixed as much as you do, Forrest1. I've checked our files and saw an open investigation.

If you've tried all the basic troubleshooting steps my colleagues provided, I'd suggest reaching out to our customer care support. An agent will add you to the list of affected users. You can follow AlcaeusF steps on how you can get in touch with us.

Please know we're just around to help you. Feel free to get back if you have other concerns. 

It may be fixed in your eyes, but not in the QB Online desktop app. I’ve been having this issue for a week now. Thankfully I can log in via browser in order to do my daily work. But very frustrating not being able to use the desktop app!  

Hi there, keith62,

We encourage everyone to access their QuickBooks Online (QBO) account through web browsers. This is to get the most out of QuickBooks experience.

Our Product Team is investigating the bad gateway error when loading companies in the desktop app. I recommend contacting our QBO Technical Team so they can add your account to the investigation (INV-35885). This way, you'll be able to receive an update regarding the issue via email.

Here's how to get in touch with them:

1. Log in to your account using the supported browsers.
2. Click Help (?) at the top right.
3. Select Contact Us to connect with a live support agent.
   
4. Enter a brief discussion of your concern, then click Let's talk.
5. Choose a way to contact us.

I appreciate your patience and understanding while we look into this matter.

While all of this may be true, I kept having this issue only on Chrome. I clicked on the padlock icon to the left of the URL, and changed the Flash entry to "Allow". Chrome then asked for a reload, and lo and behold, I was able to get in. Don't know if this permanently fixes it, but I'm in!

This happened to me and I went to Help and cleared Cache and then reset app data and it worked!

I'm getting this error message 

504 Gateway Time-out

when I try to login through the desktop app. I can log in through web browsers but not the app. This is a real inconvenience for me. It is only happening on my PC - not any others on my network. I have attempted to uninstall and re install the QB app several times over the course of the last few days but it keeps happening.

Please let me know what I can do to resolve this issue.

Thanks!

Thanks for letting me know that you've tried one of our recommended troubleshooting for the desktop app, ABK1.

What we can do now is check if your computer is compatible to use the QuickBooks app. For the system requirements, please check out this article: QuickBooks App for Windows and Mac: General support.

If you're still getting the error, please consider giving us a call. Log in to your QuickBooks account through a web browser and follow the steps below. This way, we can investigate this further why it is happening. 

1. Click the Help icon at the upper right corner and select the Contact us button below.
2. Enter a brief description of your concern. Let's say for example " 504 Gateway Time-out ".
3. Click Let's talk to process your concern.
4. You can either choose to Get a callback or Get the number to talk to one of our specialists.
5. Enter the needed information and click Confirm my call.

I'll be around in case you have other about QuickBooks. Take care!

There are many HTTP status codes sends to the users and one of them is 504 gateway timeout error and this error occurs when your request is unable to complete by servers. When you visit any site then the site grants your request and sends it to web servers and if your request is unable to complete then the server sends back the error to you.

To know that what is 504 gateway timeout and what does 504 gateway timeout mean then you need to read this content.

504 gateway timeout error is a server-side error and this error occurs when the servers are not able to complete a request due to miscommunication between the servers.

https://www.cuesinfo.com/blog/504-gateway-timeout-error/

504 Gateway Timeout error that means that if the server tries to connect with another server but could not be able to receive an immediate response from another server. It is an HTTP status code that shows on your screen. The error occurs between servers on the internet or an issue with an actual server.

In other words, 504 errors usually indicate that a different computer, one that the website you’re getting the 504 message on doesn’t control but relies on, isn’t communicating with it quickly enough.

1.  The first thing that you can do when you see error code 504 is to refresh the browser or you can close the browser and then revisit to the URL again but if you still see the error, don’t worry since this error is not your fault.
2.  You can restart all your devices if you are using on mobile then restart the device. If you are using any modem, router, switches, or other networking hardware can also be the reason for this error. Restart everything and then try again.

3. 3. Change your DNS Servers. 

   Ok, wait! Let me explain this. The Domain Name System (DNS) is the phonebook of the Internet. When users type domain names such as ‘google.com’ or ‘nytimes.com’ into web browsers, DNS is responsible for finding the correct IP Address for those sites. Browsers then use those addresses to communicate with origin servers to access website information. 

   4. The last reason can be your ISP provider responsible for this error. Contact them if you don’t get a solution from the above three possible reasons for the error