Fix Cloud & Networking Issues on VPS

(Real Cases)

Step-by-step troubleshooting guides to fix connectivity issues, firewall problems, and cloud configuration errors on VPS servers.

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Common Cloud & Networking Issues

Connection Refused

Services not accessible due to closed ports.

DNS & Cloudflare Conflicts

Cloudflare proxy interfering with server connectivity.

Firewall Blocking Traffic

Firewall blocking incoming/outgoing connections.

AWS Networking Issues

Security groups or VPC rules problems affecting access.

VPS Not Reachable

Server not accessible due to network misconfiguration.

Reverse Proxy / Routing Issues

Incorrect routing configuration causing errros.

Cloud and networking issues are common challenges when working with VPS environments. Problems like blocked ports, firewall misconfigurations, or servers not being reachable can prevent applications and websites from functioning correctly.

These issues often involve multiple layers — including server configuration, cloud provider settings, and network routing — making them difficult to troubleshoot without a structured approach.

This section contains real troubleshooting cases with step-by-step fixes to help you diagnose and resolve cloud and networking issues effectively.

Latest Cloud & Networking Fixes

VLESS not working Marzban

VLESS connects but no internet in Marzban? This issue is caused by using IP instead...

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cloudflare email not working

Emails suddenly stopped working after enabling Cloudflare, even though the server was stable. Here’s what...

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Skywork custom domain not working

If your Skywork custom domain is not working, even after setting up DNS correctly —...

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Need Help Fixing Your VPS?

If you’re stuck with server issues and need a reliable fix, I troubleshoot real VPS problems daily — from Nginx errors and SMTP failures to DNS and performance issues.

Instead of guessing, get a proven fix based on real experience.

  • Fix Nginx, Apache, and 502/504 errors
  • Resolve SMTP, email, and SES issues
  • Debug DNS, SSL, and domain problems
  • Optimize performance (CPU, RAM, slow sites)
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I always loved working with Tharindu. Do you know why? He is quick to respond and professionalism at its best form. He is the first person to contact whenever I need something related website and server issues.
Samdover
SamdoverFiverr Client
Tharindu is an awesome troubleshooter. He is fast. He is thorough, smart, and detailed. He knows how to resolve DirectAdmin errors, Cloudflare API conflicts, and DNS/SSL problems. If I could give him 10 stars, I would.
Dolphinguy
DolphinguyFiverr Client
Great communication and got the job done in a timely manner. Would definitely recommend working with this vendor! My Sendy service was down and I couldn't resolve the problem on my own!
Jasonnoel
JasonnoelFiverr Client

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