
AVM FritzBox 4020 (2016) review
The AVM FritzBox 4020 (FB-4020) router released in 2016. It is powered by Qualcomm Atheros QCA9561 @ 750 MHz chipset, 128 MB RAM and 16 MB flash. The N450 router is compatible with IEEE 802.11b/g/n standards, and the maximum speed that you can get with FritzBox 4020 is 450 Mbps.
The Guest network is a useful feature of the FritzBox 4020 router that creates a separate network for guests. It has 1 x USB 2.0 port(s).
The FritzBox 4020 router has 1 x 10/100 Mbps WAN and 4 x 10/100 Mbps LAN ports.
Table of contents:
AVM FritzBox 4020 (FB-4020) specifications
- Brand
- AVM
- Name
- FritzBox 4020
- Type
- FB-4020
- Rating
- Launch
- 2016
Body
- Dimensions
- 166 x 120 x 48 mm
System
The router's memory (RAM) cannot be expanded. By default, the router's flash memory is used to store the Fritz operating system.
- Chipset
- Qualcomm Atheros QCA9561 @ 750 MHz
- RAM
- 128 MB
- Flash
- 16 MB
- OS
- Fritz
- Power supply
- 12 V / 2.5 A
Network
The latest firmware supports IPv6 protocol that provides an identification and location system for computers on networks and routes traffic across the Internet.
- Protocols
- IPv4
IPv6 - LAN ports
- 4 x 10/100 Mbps
- WAN ports
- 1 x 10/100 Mbps
- Mobile network
- yes, with USB dongle
- VPN support
- no
Wireless
The FritzBox 4020 is compatible with 2.4 GHz Wi-Fi networks. 2.4 GHz is the most widely used frequency and in some cases may be overcrowded.
- Antennas
- 2 x 3 dBi
internal - 2.4 GHz
- yes
- 5 GHz
- no
- 60 GHz
- no
- Standards
- IEEE 802.11b/g/n
- Class
- N450
- Speed
- 450 Mbps
- Transmit power
- 20 dBm
- Security
- WPA
WPA2 - Guest network
- yes
Connectivity
You can attach a compatible USB printer to the AVM FritzBox 4020 device. It has built-in NAS functionality.
- USB ports
- 1 x USB 2.0
- Print server
- yes
- File server
- yes
Administration
The default IP addresses of the AVM FritzBox 4020 device is 192.168.178.1. These address allows you to access the router's console login page.
- Default IP
- 192.168.178.1
- Default username
- [blank]
- Default password
- [on the label]
The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the AVM FritzBox 4020, then don’t hesite and signal the problem to us.
AVM FritzBox 4020 (FB-4020) pictures

If there’s information about the AVM FritzBox 4020 that you would like to see on this site, then write to our webmaster@routerchart.com address.