FRITZ!Box Model #6690

FRITZ!Box 6690

Best for people wiring up modern devices who want a dependable, well-documented FRITZ!Box 6690.

Overview

The FRITZ!Box 6690 is a DOCSIS 3.1 cable router aimed squarely at households that get their internet through a cable provider (Kabel Deutschland, Vodafone, or similar) and want to stop renting a mediocre ISP box. At €292.43 with a 4.6/5 rating across 3,855 verified reviews and an Amazon BSR of #61, it's the most-reviewed premium cable router on the German market. The ideal buyer is someone who already pays for a 1 Gbit/s cable plan, has a home full of Wi-Fi 6 devices, and wants a single device that handles routing, telephony (DECT), and smart home control without needing a separate hub. The hardware is genuinely strong where it matters. Wi-Fi 6 (802.11ax) delivers aggregate throughput up to 6 GBit/s across dual bands (2.4 GHz and 5 GHz), and the DOCSIS 3.1 modem supports downstream speeds up to 6 GBit/s — meaning it won't bottleneck even the fastest consumer cable tiers. The integrated DECT base station handles up to six cordless handsets, and the built-in smart home hub (via DECT ULE) controls FRITZ!DECT 200/300/500 devices and third-party Zigbee gear. The mesh implementation is the best-in-class for consumer routers: you can pair it with any other FRITZ!Box or FRITZ!Repeater and get seamless band steering, zero-config roaming, and a single SSID across the whole home. The "Made in Europe" label isn't just marketing — AVM's firmware updates are delivered for 5+ years after launch, which is why this 2021-era box still gets feature additions in 2025. Honest caveats: the 6690 is not a tri-band router, so if you have a very dense multi-story home with dozens of concurrent clients, the 5 GHz band can saturate — you'd want the 5690 Pro (€341) for its 6 GHz band. The 2.4 GHz radio is also capped at 600 Mbit/s, which is fine for IoT but underwhelming for legacy devices. Setup is generally painless via the web UI, but the most common complaints in the review corpus are "no internet access after firmware update" and "Wi-Fi keeps dropping" — both usually traceable to ISP-side DOCSIS provisioning issues rather than the hardware itself, but worth knowing if you're not comfortable digging into cable modem logs. Replacement parts (power adapter, antennas, mounting bracket) are all available separately, which is rare for consumer routers and speaks to the repairability. The best use case is a mid-size apartment or house (up to ~150 m²) with a 500 Mbit/s–1 Gbit/s cable connection, a couple of cordless phones, and a handful of smart home devices. Compared to the 769

In-depth review

FRITZ! Box 6690 at a glance

FRITZ! Box 6690 is a dependable Networking that delivers on its promises. Below we cover everything from specifications to troubleshooting.

To sum it up, Best for people wiring up modern devices who want a dependable, well-documented FRITZ! Box 6690.

Setting up the FRITZ! Box 6690

Setting up the FRITZ! Box 6690 takes only a few minutes. A short setup routine gets you to first use without fuss. For any hiccups, the fixes in this guide are a good first stop. Once it is running, FRITZ! Box 6690 largely looks after itself.

How the FRITZ! Box 6690 is put together

In terms of build quality, the FRITZ! Box 6690 holds up well to regular use. The fit and finish are a step above many rivals. In everyday use, this model is straightforward to operate. Setup takes minutes, and the interface is clear.

Key specifications

Under the hood, the FRITZ! Box 6690 is defined by these figures.

  • Price: 292, 43 € EUR
  • The Rating: 4.6 /5
  • Reviews: 3855
  • The Amazon BSR: 61
  • Wi-Fi: Wi-Fi 6

These 5 specifications are the numbers that matter most to most buyers.

Performance in practice

When you actually use it, the FRITZ! Box 6690 delivers solid, repeatable results. It copes well with the demands of regular use. The results are consistent, and the unit rarely needs attention. That said, it is not without limits. Under extreme conditions, you will notice its boundaries. For most buyers, this will not be an issue.

Keeping the FRITZ! Box 6690 running

Like any machine, the FRITZ! Box 6690 will eventually need new parts.

The database lists 4 parts that fit the FRITZ! Box 6690, including filters, brushes, and other consumables.

  • FRITZ! Box 6690 Power Adapter (accessory) — part #ADP-FRITZBOX-6690
  • The FRITZ! Box 6690 Antenna (part) — part #ANT-FRITZBOX-6690
  • FRITZ! Box 6690 Mounting Bracket (part) — part #MNT-FRITZBOX-6690
  • The FRITZ! Box 6690 Ethernet Cable (accessory) — part #ETH-FRITZBOX-6690

Replacing these parts is usually straightforward, and keeping spares on hand avoids downtime.

Care and maintenance

FRITZ! Box 6690 rewards owners who keep up with basic upkeep. Cleaning the key components on a regular schedule is the single best way to avoid problems. When a part does wear out, replacing it promptly keeps the rest of the unit healthy. With reasonable care, the FRITZ! Box 6690 should give years of service. The parts and troubleshooting sections above cover the essentials.

Common errors and how to fix them

Here are the error codes and fixes that come up most for the FRITZ! Box 6690.

No internet connection

The router is up but devices have no internet, often from an ISP issue or a DNS problem.

To resolve this:

  • Restart the router
  • Change the DNS settings to a public DNS like 8.8. 8. 8.

The Wi-Fi keeps dropping issue

The laptop disconnects from Wi-Fi repeatedly, often from a driver issue or power saving.

The fix is usually:

  • Change the Wi-Fi channel
  • Move the router to a central, elevated location for better coverage.

Error repeater-not-connecting

The Wi-Fi repeater cannot connect to the main router.

Most owners fix it by:

  • Reconfigure the repeater
  • Move the repeater closer to the router for a stronger signal.

When these steps do not help, consider replacing the affected component.

What you get for the price

For the money, the FRITZ! Box 6690 gives you a lot. You are paying for a dependable, well-built product, not for marketing hype or gimmicks. Add in cheap consumables and simple upkeep, and the total cost of ownership is attractive. In most cases, the FRITZ! Box 6690 is a sound financial choice.

Pros and cons

It is worth being honest about the FRITZ! Box 6690's trade-offs. Its clear strengths are that it is straightforward, capable, and fairly priced. The flip side is that it lacks some of the bells and whistles of pricier rivals. For most people, the good clearly outweighs the bad. It is a dependable option that rarely disappoints.

Is the FRITZ! Box 6690 a good match?

It is aimed at people who need a solid performer for everyday use. It may disappoint anyone expecting flagship-level extras. If you fall into the first group, the FRITZ! Box 6690 is easy to recommend. It does the basics brilliantly and keeps costs in check.

Is the FRITZ! Box 6690 right for you?

Before you commit to the FRITZ! Box 6690, it helps to think about a few things. This model works well for regular household tasks, and it holds up well over time.

It also sits alongside FRITZ! Box 7690, the FRITZ! Box 5690 Pro, FRITZ! Box 7690 and the FRITZ! Box 5690 Pro, so it is worth comparing them side by side.

Other models worth a look

There are plenty of other models in the Networking space. Another option might fit your situation more closely. It is always worth comparing a few candidates before you commit.

Models most often compared with the FRITZ! Box 6690 are the FRITZ! Box 7690, FRITZ! Box 5690 Pro, the FRITZ! Box 7690 and FRITZ! Box 5690 Pro, and each has its own appeal.

All things equal, the FRITZ! Box 6690 is a competitive choice. Its combination of price, features, and reliability is hard to beat.

Frequently asked questions

Is the FRITZ! Box 6690 a good investment?

In most cases, it is. It delivers dependable results at an fair price.

How durable is the FRITZ! Box 6690?

Looked after properly, it will serve you for a long time. Replacing consumables on schedule is the key to longevity.

Where do I get consumables for the FRITZ! Box 6690?

The parts listed on this page are a good starting point. You can usually find them without much trouble.

What should I do about No internet connection?

For No internet connection, start with Power-cycle the router and modem. Or Check the DNS.

Why does the FRITZ! Box 6690 show Wi-Fi keeps dropping?

The typical fix for Wi-Fi keeps dropping is Change the Wi-Fi channel in the router settings to reduce interference. Or Reposition the router.

How do I fix Repeater not connecting on the FRITZ! Box 6690?

Repeater not connecting is usually resolved by Reconfigure the repeater with the correct Wi-Fi password. Or Move the repeater.

Is there an accessory for the FRITZ! Box 6690?

You will need the FRITZ! Box 6690 Power Adapter, and it is easy to source.

What part does the FRITZ! Box 6690 use?

A compatible part is the FRITZ! Box 6690 Antenna, available as a replacement part.

Which part fits the FRITZ! Box 6690?

The FRITZ! Box 6690 uses the FRITZ! Box 6690 Mounting Bracket, which is listed in our parts database.

What accessory does the FRITZ! Box 6690 use?

You will need the FRITZ! Box 6690 Ethernet Cable, available as a replacement part.

What is the Price of the FRITZ! Box 6690?

Its Price is 292, 43 € EUR.

What Rating should I expect?

The FRITZ! Box 6690 has a Rating of 4.6 /5.

How much Reviews does the FRITZ! Box 6690 have?

Expect a Reviews of 3855.

What Amazon BSR should I expect?

The FRITZ! Box 6690 has a Amazon BSR of 61.

What is the Wi-Fi of the FRITZ! Box 6690?

Its Wi-Fi is Wi-Fi 6.

Wrapping up

On balance, the FRITZ! Box 6690 is a dependable choice that delivers on its promises. Whether you are buying your first one or replacing an older model, the FRITZ! Box 6690 is worth a close look. Keep this guide handy for maintenance and repairs down the road. All told, the FRITZ! Box 6690 is a solid, trustworthy Networking. It does the basics well, lasts, and is simple to look after. If you are still on the fence, the specs, parts, and fixes above give you everything you need to decide. For most people, choosing the FRITZ! Box 6690 is a decision you will be happy with.

Specifications

Price
292,43 € EUR
Rating
4.6 /5
Reviews
3855
Amazon BSR
61
Wi-Fi
Wi-Fi 6

Replacement parts & consumables

FRITZ!Box 6690 Power Adapter

Accessory

Replacement power adapter for the FRITZ!Box 6690.

FRITZ!Box 6690 Antenna

Part

Replacement antenna for the FRITZ!Box 6690.

FRITZ!Box 6690 Mounting Bracket

Part

Replacement mounting bracket for the FRITZ!Box 6690.

FRITZ!Box 6690 Ethernet Cable

Accessory

Cat6 Ethernet cable for the FRITZ!Box 6690.

Errors & troubleshooting

No internet connection

The router is up but devices have no internet, often from an ISP issue or a DNS problem.

Wi-Fi keeps dropping

The laptop disconnects from Wi-Fi repeatedly, often from a driver issue or power saving.

Repeater not connecting

The Wi-Fi repeater cannot connect to the main router.

Compatibility

No compatibility information listed yet for this model.

Alternatives

FRITZ!Box 7690

Alternative

Best for homes and offices that need reliable connectivity who want a dependable, well-documented FRITZ!Box 7690.

FRITZ!Box 5690 Pro

Alternative

Best for homes and offices that need reliable connectivity who want a dependable, well-documented FRITZ!Box 5690 Pro.

FRITZ!Box 5690 Pro

Successor

Best for homes and offices that need reliable connectivity who want a dependable, well-documented FRITZ!Box 5690 Pro.

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