If your internet feels slower than the plan you're paying for, it's easy to point the finger at your internet service provider. But in many homes the real bottleneck isn't the connection coming into your house. It's the router sitting inside it.
Fiber-optic networks are built to deliver fast, symmetrical Gig and multi-gig internet speeds. Older or underpowered routers simply weren't designed to keep up. If your router can't handle modern fiber internet specifications, you'll never experience the full performance your plan is capable of delivering.
Router-related bottlenecks that slow you down
Not all routers are created equal. Here are the most common reasons routers fail to deliver fiber speeds:
- Undersized WAN ports: Your router's WAN port must support the speed of your internet plan. A Gig connection paired with a slower port creates an instant cap.
- Outdated WiFi standards: WiFi 5 (802.11ac) can limit real-world speeds, especially in busy households.
- Dual-band congestion: With only two frequency bands, devices compete for airtime, causing slowdowns.
- Limited router throughput: Some routers simply can't process data as fast as fiber delivers it.
- No MU-MIMO or OFDMA: Without these technologies, routers struggle to efficiently serve multiple devices at once.
- ONT compatibility gaps: Not all routers integrate cleanly with fiber ONTs, which can cause performance issues.
- Old firmware: Outdated software can quietly reduce speed, stability and security.
Any one of these can keep your connection from reaching its potential, and many older routers check several of these boxes.
Minimum router specs every fiber internet-connected home needs
To fully take advantage of fiber internet, your router should meet these baseline requirements:
- WAN port: 1 Gbps or higher
- WiFi standard: WiFi 6E or newer
- Band support: Dual-band
- Device handling: MU-MIMO and OFDMA
These specs ensure your router can handle modern fiber speeds, manage multiple devices efficiently, and avoid unnecessary slowdowns.
This list of technical terms might look intimidating. Simply put, if your router hasn't been upgraded in a while, or ever, it's worth giving your ISP a call to find out if there is a newer model available. Your ISP will know what equipment you have, and they'll be able to test your connection to see if anything else is causing a slowdown.
Read more: What speed do I really need?
Best-case specs for Gig and multi-gig fiber internet
For households using Gig or multi-gig fiber, especially those with heavy usage, stepping up your router makes a noticeable difference:
- 2.5G+ WAN port to support multi-gig plans
- WiFi 7 for next-generation wireless performance
- Tri-band design with a dedicated 6 GHz band
- WPA3 security for stronger protection
WiFi 7 is the first wireless standard designed specifically to keep pace with multi-gig fiber connections.
Upgrade to WiFi 7 if you can
WiFi 7 isn't just an incremental upgrade; it solves many of the pain points that frustrate fiber internet customers today:
- Wireless speeds up to 3.5 Gbps
- Dedicated 6 GHz spectrum with less interference
- Multi-Link Operation, allowing devices to use multiple frequency bands simultaneously
- Lower latency for video calls, gaming and immersive apps
- Fewer dead zones often eliminating the need for extenders
- Stronger WPA3 encryption for enhanced security
The result is faster, more reliable performance across every corner of your home, even with dozens of connected devices.
Learn more about the WiFi 7 router
Where router limitations show up first
If your router isn't up to the task, you'll feel it most during everyday activities, like remote work with large file uploads, multiple simultaneous 4K streams, online gaming, cloud storage and AI-powered apps.
Your Gig or multi-gig fiber internet plan can handle all of this effortlessly, but only if your router can keep up.
Ziply Fiber recommends
Ziply Fiber offers WiFi 7 equipment designed to fully unlock the performance of its fiber network. Ziply Fiber-recommended routers are fully ONT compatible and built to handle Gig and multi-gig speeds without compromise.
When you upgrade to Gig or multi-gig fiber internet, your technician should swap out your router for a newer version. If you're experiencing slowdowns, it's worth checking to find out if your router is outdated.
Innovating for you: the WiFi 7 advantage
If you're not seeing the speeds you expect, upgrading your router may be the simplest and most impactful fix. It's as simple as calling your ISP or connecting with an agent in the app or on the website and asking if upgrading would help.
Fiber internet already delivers the performance. The right router lets you experience it.