Nextcloud App error when uploading

📱 Desktop & mobile clients
, , , ,
14

Hi,
I totally understand your frustration — I’ve been there too.

Personally, I haven’t tested Nextcloud AIO on Windows Server, so I can’t fully assess how it behaves in that environment.
I run everything on a self-hosted Proxmox server where I have multiple Ubuntu Server VMs.
One of them runs Nextcloud AIO, and it’s been working flawlessly for almost 3 years.

:closed_lock_with_key: Public IP vs. Cloudflare/Tailscale

I pay for a public IPv4 address specifically to avoid services like Cloudflare and Tailscale, because I’ve had issues with both in the past.

In particular, Cloudflare caused problems with syncing large files — uploads would either fail or endlessly loop. Cloudflare has certain limits and aggressive behavior that doesn’t always play nicely with protocols like WebDAV, especially over tunneled reverse proxies.

:white_check_mark: My Working Setup

Here’s the model I use that has been rock solid:

nextcloud.mydomain.sk
     ↓
paid public IP address
     ↓
router (forwarding ports 443 and 80)
     ↓
NGINX proxy server (running in a VM on my LAN)
     ↓
Nextcloud AIO (separate VM on same LAN)

image
image1536×1024 88.5 KB

  • SSL certificates are handled automatically via Let’s Encrypt on the NGINX proxy
  • Syncing works perfectly across desktop, mobile, and WebDAV
  • No HTTPS issues, no remote access problems, no outages

Just yesterday I helped another user set up a similar reverse proxy setup — here’s the thread if you’re interested:
:link: Can't make reverse proxy work between public Apache server and local Nextcloud server

:bulb: Suggestions

  • If you’re planning to share access with family members, especially non-technical users, I’d really recommend avoiding Cloudflare Tunnel.
  • If AT&T won’t let you open ports 80/443 at home, maybe look into hosting a small VPS or VM with a provider that gives you a public IP.
  • If you continue using Cloudflare, make sure to disable Rocket Loader, caching, compression, and other “optimizations” for the Nextcloud subdomain — these often cause trouble.
  • Also double-check your proxy headers (X-Forwarded-For, X-Real-IP, etc.) — misconfigured headers often lead to weird behavior with AIO behind reverse proxies.

If you ever want help switching to a direct reverse proxy setup (without Cloudflare), I’m happy to walk you through it. It can absolutely be made to work reliably even from home — if you can get basic port forwarding set up.
But you can follow my settings as mentioned above at URL.