The file wp-config.php already exists? Clear Aruba cache

When WordPress works… but only on your computer

You’ve just installed WordPress on a brand new domain. The backend works: plugins install, pages load, content saves, and everything seems just fine.

But when you try to open the site from a smartphone or another device, an error message appears. Something like this:

“The file wp-config.php already exists. If you need to reset any configuration in this file, delete it first. You can try to install now.“

Confused? You’re not alone. This was the issue faced on impresaindustria.it, and here’s what solved it.

The real issue: Aruba’s HiSpeed Cache

When using Aruba hosting, the platform activates something called HiSpeed Cache by default. This server-side caching can sometimes store a “stuck” or broken version of your website — especially after a fresh installation.

That means even though your WordPress dashboard works perfectly, the public-facing site may appear broken or display strange installation messages.

The fix: Clear server-side cache

Here’s how the issue was resolved in this real case:

1. Log in to your Aruba control panel
2. Navigate to HiSpeed Cache
3. Click “Cancella cache” (Clear Cache)
4. Refresh the site from another device

Problem solved. The site became immediately visible from all devices.

How to avoid it next time

After installing WordPress on Aruba, always clear the server cache before checking your site externally. Also, avoid relying only on your own browser – test your site from another network or device to make sure it’s accessible.

Dopstart can help

Having WordPress issues that don’t make sense? Dopstart offers a free initial consultation to help you diagnose and fix visibility and performance problems. From installation to SEO optimization, we’re your partner in the digital journey.

FAQ

1. Why can I only see my WordPress site from one device?
Because of server-side caching. Your computer may show a cached version, while others get an error due to outdated or broken cache.

2. What does the wp-config.php error mean?
It usually means WordPress was already installed. But if the site works in the admin panel, the error is likely caused by cache issues rather than file problems.

3. What is Aruba’s HiSpeed Cache?
It’s a server-side caching system designed to speed up site loading. However, it can sometimes interfere with new installations if not cleared.

4. How do I clear the Aruba cache?
Log in to the Aruba control panel, go to the HiSpeed Cache section, and click “Cancella cache”.

5. Do I need to delete wp-config.php manually?
Not necessarily. If the site works in admin, the problem likely lies in the cache. Try clearing it first before deleting files.

6. Is this a common problem with Aruba hosting?
Yes, especially for users unfamiliar with Aruba’s default caching settings. It’s easily fixable once you know where to look.

7. Does clearing the cache delete any data?
No, it simply refreshes the cached version of the site. All your content and settings remain untouched.

8. Should I always clear the cache after installing WordPress?
It’s highly recommended when using hosting with server-side caching like Aruba, to ensure everything displays correctly.

9. Can this issue happen with other providers too?
Yes, any hosting with aggressive caching systems (like Varnish or Cloudflare) can present similar issues if cache isn’t purged.

10. Can Dopstart help with other WordPress issues too?
Absolutely. We assist with installations, migrations, performance optimization, SEO, and long-term digital strategy.