Your home server dies the moment your ISP goes down—here's how to fix it

Credit: Jordan Gloor / How-To Geek Published Aug 16, 2026, 8:15 AM EDT Monica J. White is a journalist with over a decade of experience in covering technology. She built her first PC nearly 20 years ago, and she has since built and tested dozens of PCs. PC hardware is her main beat, and graphics cards and the GPU market at large are her main area of interest, but she has written thousands of articles covering everything related to PCs, laptops, handhelds, and peripherals. From GPUs and CPUs to headsets and software, Monica's always willing to geek out over all things related to computing. Outside of her work with How-To Geek, Monica contributes to TechRadar, PC Gamer, Tom's Guide, Laptop Mag, SlashGear, Whop, and Digital Trends, among others. Her ultimate goal is to make PC gaming and computing approachable and fun to any audience. Monica spends a lot of time elbow-deep in her PC case, as she's always making upgrades, testing something, or plotting out her next build. She's the go-to tech support person in her immediate circle, so she's never out of things to do. Whenever she has spare time, you'll find her gaming until the early hours and hanging out with her dog. Sign in to your How-To Geek account You can protect your home server against many different kinds of failures if you're smart about it. But how can you protect yourself against losing your internet connection when the ISP is at fault? I've had my fair share of ISP troubles, and I've learned not to rely on my connection being perfect. That's why I like the idea of adding a small VPS to the setup. Your home internet can still fail at any time The server can be fine while everything outside the LAN is dead If you have a home server, you already know a lot about preparing for various circumstances. For many, the whole point of having one isn't just the accessibility, but also security, including backups in accordance with the 3-2-1 rule. The good thing is that your home server can be pretty resilient: RAID can keep certain drive failures from taking your storage down, backups give you a trusty recovery point no matter what happens, and a UPS makes sure your whole system stays online even if there's a power cut. With that said, your home server can still become completely inaccessible remotely if your internet goes down, and that's largely down to your ISP. As I've learned, those can be pretty spotty. Not having internet when you're at home won't necessarily break your server, because it doesn't rely on that connection to provide services within the house. Watch your Jellyfin, dig through files via LAN, and open locally hosted dashboards, sure. But from outside your house, the whole thing is pretty much kaput if there's no internet to connect to. For some services, that's more of a problem than for others, such as port forwarding and VPNs. Having zero control over it makes it even worse. Dynamic DNS won't help here either: it can't do anything when there's no working route to connect to your house in the first place. At that point, it's time to stop relying on your ISP and start thinking outside the box, which is where a Virtual Private Server (VPS) comes in. A small VPS can be the right solution for your homelab Just move the entry point Credit: Patrick Campanale / How-To Geek A VPS is basically a little slice of an actual physical server. You rent it from a hosting provider, and it runs in a data center as opposed to your home. Your VPS comes with its own public IP address, too. The best thing is, though, that it'll stay online no matter what your ISP is doing (which in my case was often nothing good). Setting this up is less of a hassle than it seems. A basic Linux VPS with a couple of CPU cores and some tiny bit of RAM is all you need if you just want a public-facing entry point for a few self-hosted services. Once you've rented one, install something like Tailscale or WireGuard on both the VPS and your home server. This lets them "talk" to each other over a private tunnel. All done? Point your domain at the VPS instead of your home connection, then run a reverse proxy (such as Caddy, Traefik, or Nginx) on it. If all goes well, the VPS should receive a request and then forward it through that private tunnel to the real service you've got running at home. As a result, users always connect to the same public endpoint, but your residential IP address is out of the equation. Win-win. For me, the best hit is that this gives you somewhere outside your home network to handle traffic if your ISP lets you down (yet again, perhaps). Of course, as is usually the case, there's a catch: the VPS needs something useful to serve when it can no longer reach your home server ... which brings us to the fallback. The VPS needs a real fallback You can't proxy to a server that no longer has internet Credit: Hannah Stryker / How-To Geek This nice VPS you've got going can't actually save you from an ISP outage if it only acts as a reverse proxy. If your home connection goes bye-bye, the VPS remains online, but the service it's trying to reach is gone, so there's not much it can do. It won't forward traffic successfully; it'll just hit a wall. That's why, if you want to use this as an actual failover, you need to host something locally that the VPS can serve when your home server becomes unreachable. The exact way this works depends on the service. For a website, dashboard, or a lightweight app, you might be able to run a second copy directly on the VPS, then synchronize its data with the home server. But heavier services like Jellyfin or anything with several TBs of storage won't work here, as duplicating the whole thing just isn't practical. In those situations, your fallback can just be a stripped-down version or a read-only copy. Even a status page that explains the full service is currently unavailable is better than nothing. A quick PSA, though: be careful with anything that writes data. Static files are easy enough to sync, but databases with user-generated content can become a nightmare if you allow both copies to be changed independently. For most home setups, I'd keep the VPS fallback passive and either read-only or limited to services that are simple to synchronize. Quiz8 Questions · Test Your KnowledgeHomelab basics and originsTrivia challengeFrom basement servers to virtual machines — find out how well you know the world of homelabbing.HistoryHardwareNetworkingVirtualizationCommunityBeginWhat is the most widely accepted origin of the homelab culture?AGamers repurposing old consoles as media servers in the early 2000sBIT professionals and sysadmins setting up practice environments at home to develop job skillsCUniversity students building personal supercomputers for academic researchDTelecom engineers experimenting with early broadband routers at homeCorrect! Homelab culture grew largely from IT professionals and sysadmins who wanted hands-on practice with enterprise technologies without needing access to a workplace lab. This allowed them to study for certifications and experiment freely at home.Not quite. While gamers and students certainly tinker at home, the homelab movement is most strongly rooted in IT professionals building practice environments to hone skills, study for certifications, and experiment with enterprise-grade software and hardware.ContinueWhich type of server hardware is most commonly repurposed by homelab enthusiasts due to its low cost and enterprise-grade features?AConsumer desktop PCs with upgraded RAMBDecommissioned enterprise rack servers such as Dell PowerEdge or HP ProLiantCRaspberry Pi clusters bought new from retail storesDCustom-built workstations with prosumer motherboardsCorrect! Decommissioned enterprise rack servers like the Dell PowerEdge and HP ProLiant series are homelab staples. They are often available cheaply on secondary markets once businesses refresh their hardware, and they offer ECC RAM, redundant power supplies, and high core counts.Not quite. While all these options appear in homelabs, decommissioned enterprise rack servers like Dell PowerEdge and HP ProLiant units are by far the most popular choice due to their low secondhand cost and feature-rich enterprise specifications.ContinueWhich hypervisor platform became one of the most popular free tools for homelab virtualization, especially before its licensing changes in 2024?AMicrosoft Hyper-VBOracle VirtualBoxCVMware ESXiDKVM on Ubuntu ServerCorrect! VMware ESXi, particularly its free tier, was a go-to hypervisor for homelab enthusiasts for many years. It offered enterprise-grade virtualization at no cost for personal use, though Broadcom's acquisition of VMware in 2023 led to significant licensing changes in 2024 that impacted the community.Not quite. VMware ESXi's free tier was the dominant homelab hypervisor for years due to its enterprise features and zero cost for personal use. Broadcom's acquisition of VMware and subsequent 2024 licensing changes were a major disruption to the homelab community.ContinueWhich online community became one of the largest and most influential gathering places for homelab enthusiasts?AThe r/homelab subredditBThe Linus Tech Tips forumCThe ServerFault Stack ExchangeDThe Hacker News communityCorrect! The r/homelab subreddit grew into one of the largest communities for homelab enthusiasts, with members sharing their setups, asking for advice, and discussing hardware and software. It has become a central hub for both beginners and experienced homelabbers alike.Not quite. While all these communities have IT-savvy audiences, r/homelab on Reddit became the defining online community for homelab culture, amassing hundreds of thousands of members who share builds, tips, and troubleshooting advice.ContinueWhat networking concept do homelab enthusiasts commonly implement to segment their home network into isolated sections for security and organization?APort forwardingBVLANs (Virtual Local Area Networks)CMAC address filteringDDNS round-robin load balancingCorrect! VLANs are a networking staple in homelabs, allowing enthusiasts to logically separate traffic — for example, keeping IoT devices isolated from personal computers or creating a dedicated lab network. This mirrors enterprise networking practices and is a key learning area for homelab certification candidates.Not quite. While port forwarding and MAC filtering are used in homelabs, VLANs are the go-to tool for network segmentation. They allow homelab operators to mirror enterprise network designs, separating trusted devices, IoT gadgets, and lab environments on the same physical hardware.ContinueWhich open-source platform, often run in homelabs, allows users to manage multiple virtual machines and containers through a single web-based interface?ApfSenseBTrueNASCProxmox VEDHome AssistantCorrect! Proxmox VE (Virtual Environment) is an open-source hypervisor that combines KVM virtualization and LXC containers into a user-friendly web interface. It became especially popular in homelabs after VMware ESXi's free tier was discontinued, offering a powerful and fully free alternative.Not quite. pfSense is a firewall, TrueNAS is a storage platform, and Home Assistant is for home automation. Proxmox VE is the open-source hypervisor that lets homelab users manage VMs and containers from a single web dashboard, and it surged in popularity as a VMware ESXi replacement.ContinueThe widespread availability of which technology in the early 2000s is credited with making home server setups significantly more practical for everyday enthusiasts?AWi-Fi 802.11b/g home routersBBroadband internet connections replacing dial-upCUSB 2.0 external hard drivesDConsumer-grade 64-bit processorsCorrect! The rollout of broadband internet in the early 2000s was transformative for home server enthusiasts. With always-on, high-speed connections, running a web server, FTP site, or remote access setup from home became genuinely practical for the first time, sparking early homelab culture.Not quite. While Wi-Fi routers and USB drives helped, the shift from dial-up to broadband internet was the pivotal enabler. An always-on connection meant home servers could actually serve content and be remotely accessed reliably, laying the groundwork for modern homelabbing.ContinueWhat is the term commonly used in homelab circles to describe the practice of running multiple services — such as media servers, ad blockers, and dashboards — on a single machine using containers or VMs?AOverclockingBSelf-hostingCRedundancy planningDBare-metal provisioningCorrect! Self-hosting is the practice of running your own instances of software services rather than relying on third-party cloud providers. In a homelab, this often means hosting your own Nextcloud, Plex, Pi-hole, or Grafana stack, giving you full control over your data and infrastructure.Not quite. The term is self-hosting. It refers to running your own software services on personal hardware instead of using commercial cloud platforms. Self-hosting is a core motivation for many homelab enthusiasts who value data privacy, customization, and learning through hands-on administration.See My ScoreChallenge CompleteYour Score/ 8Thanks for playing!Try Again Setting up the failover is simpler than building a second homelab The good news here is that if you already have a home server, none of this will be difficult for you to set up, and your home server can still be the primary machine. The VPS will just handle the public endpoint and whatever light fallback you've got in mind, helping keep things going when or if your ISP lets you down.