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Error 503 Backend Fetch Failed: How to Fix it
Power cycle your router
5 min. read
Published onNovember 1, 2023
published onNovember 1, 2023
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Key notes
If you have encountered the error 503 Backend Fetch Failed Varnish cache server while browsing the internet, this guide can help!
We will talk about the common causes and offer you WR experts tested methods to fix the problem right away.
What is a backend error 503? A 503 Backend Fetch Failed Varnish cache server indicates that the website or web service you are trying to access is currently unavailable or you have an unstable internet connection. Other probable causes are:
How do I fix Error 503 Backend Fetch Failed?
Before proceeding with any steps to fix the 503 backend fetch failed error message, go through the following preliminary checks:
1. Power cycle your router (For both frontend and backend users)
Power cycling the router can help clear local network issues and refresh DNS information. Thereby eliminating the problem if the issue with the website lies on your side. This could also helpsimilar website-related issues like 503 error unavailable.
2. Ping your router to check the connection
Pinging the router can help diagnose local network connectivity problems and rule out probable issues with your network.
3. Clear the browser cache
If you cannot access the website due to corrupted or outdated cached data stored in your browser, these steps could help you delete it.
Clearing the cache can help you get past theError 503 certificate has expiredissue so that you are not restricted to visiting any websites.
4. Reset your browser
If you can use the website on another browser but can’t open it on the preferred browser, it is time to reset it to default settings.
5. Re-enable the Varnish plugin (Backend users)
If the Error 503 Backend Fetch Failed issue is at the server end and caused by Varnish cache misconfiguration or other issues, refreshing the plugin can help. However, if the plugin is already disabled, try enabling it and check if the issue is resolved.
6. Modify the Varnish & NGIX configuration files (Backend users)
Now locatenginx.conf.samplefile in theMagneto 2root folder, follow these steps:
7. Edit the cache length (Backend users)
In case nothing worked for you, then try considering the website admin, explain the issue and fixes you tried for further assistance.
If you have any questions or suggestions about the subject, feel free to mention them in the comments section below.
More about the topics:Fix network issues
Srishti Sisodia
Windows Software Expert
Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative blogs.
Her diverse interests bring a unique perspective to her work, and she approaches everything with commitment, enthusiasm, and a willingness to learn. That’s why she’s part of Windows Report’s Reviewers team, always willing to share the real-life experience with any software or hardware product. She’s also specialized in Azure, cloud computing, and AI.
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Srishti Sisodia
Windows Software Expert
She is an electronics engineer and writer with a passion for technology. Srishti is specialized in Azure, cloud computing, and AI.
