Fix AWS Site-to-Site VPN -- 2

@bindmission

Hello, I have 10 years of experience in managing AWS networking solutions. I understand your Site-to-Site VPN between your on-prem network and AWS VPC is unstable. I will review the current setup and identify the root cause. My goal is to restore a stable, persistent VPN connection and document the changes made. I am available to start immediately and can work with provided IAM access. Regards, VishnuLal NB*

@AwaisChaudhry

Hi there, I understand the Site-to-Site VPN is flapping due to Phase 1 renegotiations, and the root cause could be changes in tunnel options, IKE version, pre-shared keys, or route/ACL settings. I will review end-to-end: VPC route tables, security groups, tunnel options, PSKs, IKE/IPsec versions, and on-prem device config. My approach is to reproduce with your logs, identify the renegotiation loop, adjust the strongest evidence-based settings (IPsec/IKE proposals, dead-peer-detection, perfect-forward-secrecy), and validate bidirectional traffic with continuous uptime. I’ll provide a concise change-log and a tested, persistent tunnel. What is the current IKE version and any recent changes to your on-prem device that could have affected Phase 1 negotiations? What are the exact tunnel status logs from the last 24-48 hours showing Phase 1 renegotiations looping? Are there any new AWS updates or VPN endpoint changes in your account? Do you have a preferred IKE policy or PSK rotation schedule? What times do you observe the drops? Can you share VPC route tables and subnet associations for the VPN connected routes? Which security groups and NACLs apply to the VPN traffic? Do you require temporary IAM access for troubleshooting? Would you like a documented rollback plan? Are you open to temporarily enabling a debug/monitoring tool during the fix? Best regards,

@farooqtahir2013

As a seasoned Network Engineer with over a decade of experience under my belt, I have encountered and successfully resolved numerous complex issues similar to yours. I possess robust knowledge of diverse network systems such as Cisco, MikroTik, Palo Alto, and others that makes me uniquely qualified for this task. My extensive hands-on experience with AWS VPCs and VPNs will provide the agility needed to efficiently troubleshoot your existing configuration, identify the root cause of the disruptive connectivity issues, and implement a stable solution to ensure a consistent, secure, and uninterrupted operation. Lastly, my commitment is reinforced by my availability and quick response time. I understand the impact unreliable connectivity can have on your operations and thus ensure 24/7 availability to address any concerns promptly. With me on your team, you can rest easy knowing you're partnering with an experienced professional ready to deliver nothing short of excellence. Let's get this project underway so we can have your VPN tunnel fixed and restored-efficiently for consistent productivity!

@raj00565

Hi, Having encountered similar issues during my tenure as an AWS networking specialist with a decade of experience, I am confident in my ability to resolve the concerns you are experiencing with your AWS VPN. I have a vast knowledge of AWS services and comprehensive skills in network administration and security, making me a valuable asset for your project. My strategy involves taking a meticulous approach, assessing not just the immediate symptoms but also conducting a holistic evaluation of the entire system to identify potential underlying issues. By reviewing the configuration elements you've outlined - VPC route tables, security groups, tunnel options, pre-shared keys, and IKE version - I will leave no stone unturned until we find the root cause responsible for the instability. Ultimately, my prime focus is on delivering reliable solutions that stand the test of time. Once we've fixed your VPN connection, I'll provide you with a concise summary of changes made or recommended so you can maintain and reference the solution in future instances. With my deep technical proficiency and solution-driven mindset, I am eager to dive into this project and get your Site-to-Site VPN back to normalcy. Let's ensure smooth and continuous data flow between your on-prem network and AWS VPC again! Regards Dhanu Innovations Pvt. Lt

@dyjibran

With over a decade of experience in network administration, I can bring a wealth of knowledge and skill to resolving your Site-to-Site VPN issues. My understanding of Amazon Web Services is not only extensive but highly developed— encompassing Lightsail, EC2 and especially your current subject matter, AWS VPNs. Furthermore, my proficiency with routers and firewalls such as Cisco, OpenWRT and pfSense/opnsense make me the ideal candidate for this task. By carefully combing through your existing infrastructure, routes tables, tunnel options, pre-shared keys and more, we can effortlessly isolate the issue and arrive at an efficient solution. With your explicit consent, I'm ready and willing to utilise my abilities to gain temporary IAM access or access to specific logs, if needed, to ensure an accurate diagnosis. Finally, my depth of expertise extends beyond VPNs with skills in various other domains such as Linux systems administration and cloud-based financial management with QuickBooks on Amazon Web Servers or Windows Server environments—skills that could prove valuable while investigating any potential complications in your system setup. Rest assured that our collaboration will bring the high performance that your network requires for stabe operations throughout the project length.

@sahilcomputers39

Hi, I can help you restore a stable AWS Site-to-Site VPN connection and eliminate the intermittent tunnel drops and Phase 1 renegotiation loop. I’m an AWS/DevOps Engineer with 16+ years of infrastructure and networking experience, with strong hands-on expertise in AWS VPN, routing, and IPsec/IKE troubleshooting. How I will approach this • Review AWS VPN configuration (Customer Gateway, Virtual Private Gateway / TGW, tunnel options) • Validate IKE version, Phase 1/Phase 2 parameters, lifetimes, encryption suites, DPD settings • Check VPC route tables, propagation, NACLs, Security Groups, and BGP/static routing • Analyze CloudWatch/VPN logs + on-prem logs to pinpoint renegotiation cause • Apply fixes with minimal disruption and verify persistent traffic flow Deliverables • Fully working Site-to-Site VPN tunnel with stable uptime • Verified bidirectional traffic across on-prem ↔ AWS • Short summary of root cause + configuration changes for documentation I can start immediately once you share tunnel configuration details and logs (AWS + on-prem). We can finalize the budget depending on complexity and current routing setup. Best regards, SaD

@toriquldev123

At Toriqul Global Solutions, we transform ideas into high-performing digital products. We are a professional web development agency led by Engineer Md. Toriqul Islam brings over a decade of expertise in designing and developing websites, applications, and custom digital solutions. What We Deliver: ✔ Stunning modern websites ✔ Powerful custom web applications ✔ Mobile apps for Android & iOS ✔ E-commerce platforms ✔ Business automation systems ✔ SEO-friendly and fast-loading websites Our Tech Stack: React, Node.js, Laravel, PHP, WordPress, Python, .NET, MySQL, MongoDB, React Native, Bootstrap, JavaScript, and more. Why Clients Trust Us: • Business-focused solutions • Clean UI/UX design • Secure & scalable systems • Reliable deadlines • Transparent communication • Excellent after-sales support We don’t just build websites, we build results. Let’s create something amazing together. Best Regards, Toriqul Global Solutions

@kamran2012

Hi, I will diagnose the Phase 1 re-negotiation loop, fix the tunnel configuration, and restore stable bidirectional traffic — plus document every change made. Since Phase 1 is looping, I will check the IKE version mismatch and DPD (Dead Peer Detection) timeout settings first — AWS recently updated default tunnel options, which often causes existing VPNs to renegotiate endlessly when the on-prem side still expects the old parameters. Questions: 1) Which on-prem router model and firmware version are you running? 2) Are you using IKEv1 or IKEv2? Looking forward to potentially working together. Thanks, Kamran

@MIndlabsAi6

Hello, I am Vishal Maharaj, a seasoned professional with 20 years of experience in Amazon Web Services. I have carefully reviewed your project requirements regarding the unstable Site-to-Site VPN connection between your on-prem network and AWS VPC. To address this issue, I propose to conduct a thorough examination of the current setup, including VPC route tables, security groups, tunnel options, pre-shared keys, and IKE version. By identifying the root cause of the problem and implementing necessary adjustments, I aim to restore a stable and continuous connection for seamless bidirectional traffic flow. I am well-equipped to provide a detailed summary of the changes made or recommended for your documentation. Please feel free to initiate a chat to discuss further details and begin resolving the VPN issue promptly. Cheers, Vishal Maharaj

@vps8

Hi, I can fix your AWS Site-to-Site VPN issue. I will check tunnel settings, logs, PSK, and routes to find why Phase 1 is looping. Then I’ll fix it and make the connection stable. You will get a short summary of what was changed. I’m ready to start now. I have over five years of experience as a systems administrator, working with Linux distributions like CentOS, AlmaLinux, Ubuntu, Debian, Red Hat, and Windows servers. I manage WHM/cPanel, CWP, Plesk, Virtualmin, Hestia, and VestaCP, along with AWS, DigitalOcean, Azure, Docker, and Docker-Compose. My expertise includes DNS management, mail servers (Zimbra, Postfix, Exim, Office 365, Google Workspace), and web servers such as Apache and Nginx and also configure Open Source Storage app ( NextCloud, OwnCloud ). I also handle WordPress, Magento, Laravel, Node.js, and PHP applications. I have strong experience working with databases like MySQL, MariaDB, MongoDB, and PostgreSQL, as well as integrating and managing Cloudflare services. My skills also cover proficient management of email services and web hosting. Kindly chat once. Thank you

@nadeemkhan7

Hello, I went through your project description and it seems like that I am a great fit for this job. I have an expert team with many years of experience in System Admin, Linux, Amazon Web Services, Network Administration, Cloud Networking, Network Security, Network Monitoring. Lets connect in chat so that we discuss further. Regards

@loxtic

Hi, how are you doing? I’ve handled multiple AWS networking setups including Site-to-Site tunnels, VPC routes, and common jitter/phase issues, and I can quickly review your current config (IKE, PSK, tunnel options, security groups, and route tables) to identify the root cause and restore a stable, bidirectional link. I can share a concise recap of changes for future reference and, if needed, work with temporary access to logs. Let me know further if interested.

@sufyand1

As an expert in both AWS and Linux, I am well-positioned to tackle your site-to-site VPN issues head-on. With over four years of experience as a Python Developer and DevOps Engineer, I have honed my skills in ensuring the robustness and efficiency of applications - precisely what you need for a continuously functioning and reliable VPN. My knowledge of Django also equips me with an understanding of RESTful APIs, which will be crucial in analyzing and addressing any backend issues with your VPN. My extensive experience in automation, cloud deployment, and CI/CD pipelines has equipped me with the skills to identify root causes and implement effective solutions while keeping scalability in mind. I am diligent in monitoring system performance and optimizing server security, which will be invaluable in resolving any issues stemming from recent AWS updates or configuration flaws - just what your project requires. I've successfully deployed Django applications to various cloud platforms including AWS, making me well-versed with the intricacies of managing VPCs, route tables and security groups - all vital in restoring stability to your VPN connection. As we work together on this project, rest assured that I will not only fix the issue but provide a detailed report on the changes made for future reference. Don't hesitate; let's restore tranquility in your network today!

@engruhulajom

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom

@cybexsoftadmin

Hi, I can quickly diagnose and stabilize your Site-to-Site VPN so the tunnel stays up and traffic flows consistently. I’ll review Phase 1/2 configs (IKE version, encryption, lifetimes, PSK), AWS tunnel options, route tables, and logs to identify the root cause of re-negotiation loops. I’ll then fix the configuration and validate stable, bidirectional connectivity. Deliverables: * Stable VPN tunnel (no drops) * Verified traffic flow both ways * Short summary of fixes/recommendations I have 15+ years of AWS/networking experience, including IPSec VPN troubleshooting. Timeline: Few hours Quick question: Which device on-prem (Cisco/Fortigate/etc.)? Ready to start immediately. Rahul

@ashinnd84

Hello there, we are a team of Full Stack Developers Web developers, Data scientist and AI experts. Please, send me a message to discuss the work. Thanks Ashish Kumar.

@manishsethis9

As an experienced and detail-focused Cloud & AI Architect, I can assure you that I possess both the understanding of AWS VPCs as well as the proficiency necessary to assess and rectify your VPN issue. My career has been built around designing scalable, resilient, and efficient systems while keeping costs in mind, so I greatly appreciate the importance of restoring a stable connection promptly. Previously, I have worked on high-scale applications, built AI-powered solutions (LLMs, RAG pipelines, ML workflows), developed data platforms and real-time processing systems, as well as implemented CI/CD pipelines using Infrastructure as Code (IaC) tools like Terraform - all skills that are crucial in your current requirements. My dedicated approach to improving observability, reliability, and system performance also ensures that not only will I solve the immediate issue but also leave behind recommendations for a foolproof future set up. Choosing me for this project means choosing deep expertise, meticulousness, and an unwavering commitment to delivering top-notch results that meet your needs not just today but for tomorrow as well. Let's swiftly restore your site-to-site VPN connection to its optimal state so that you can focus on moving forward with confidence.

@AITSoft

Hello, I understand the Site-to-Site VPN issue you’re facing: the tunnel comes up intermittently and Phase 1 renegotiations loop, which points to a misconfiguration or an AWS-side change affecting IKE/ESP settings. My approach is to quickly validate the current setup end-to-end: VPC route tables, security groups, tunnel options, pre-shared keys, IKE version, and tunnel interfaces. I will collect and compare on-prem and Cloud configurations, reproduce the issue in a controlled test, and then implement a stable configuration that allows bidirectional traffic with persistent tunnels. I’ll document the exact changes in a concise summary for future reference and ensure you have a durable, working site-to-site VPN. What I will do: - Validate and align IKE/ESP proposals and version with AWS (IKEv2 recommended) - Confirm PSK integrity and tunnel pre-shared key storage - Verify route propagation and security group rules for VPN subnets - Review customer gateway/device HA settings and AWS VPN CloudHub if used - Implement changes and monitor for stability with ongoing traffic and NetFlow/IPsec logs What is the current behavior of Phase 1 renegotiations and can you share the latest VPN logs or provide temporary IAM access to collect diagnostics? Best regards, Shamshad

@adrian1a

Hi I can fix this I’ve done AWS VPN troubleshooting before this is in my zone I will go through your VPN setup step by step check IKE Phase 1 Phase 2 negotiation route tables SGs and tunnel options and find exactly why it is re negotiating loop I will also verify AWS side config like customer gateway virtual private gateway and any recent config drift or AWS change impact Once issue is found I will stabilize tunnel so it stays up and traffic flows both directions without drops You will get a clean working Site to Site VPN plus short clear notes of what was changed so you can document it If needed I can jump in quickly once you share access and logs