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ZyXEL NBG2105 router review

150 Mbps
IEEE 802.11b/g/n
Realtek RTL8196EU @ 400 MHz
32 MB / 4 MB

ZyXEL introduced the NBG2105 router in 2012. It is powered by Realtek RTL8196EU @ 400 MHz chipset, 32 MB of RAM, and 4 MB of flash memory.

Curious if this ZyXEL router is great? Stay with us!

Table of Contents

  • ZyXEL NBG2105 specifications
    • Body, dimensions, weight
    • System, chipset, RAM, flash, power supply
    • Network, protocols, WAN and LAN ports
    • Wireless, antennas, speed, security
    • Connectivity
    • Administration, user interface, login information
  • Verdict, Pros and Cons
  • Photos

Our personal experiences and opinions form the basis of this article. We aimed to share insights on a topic, and we hoped others would find it useful and inspirational. The specs below rely on official manufacturer data, but we also consider user reviews. If you noticed any mistakes or missing details about the ZyXEL NBG2105, please let us know. Furthermore, we strive to deliver a thorough and precise overview.

ZyXEL NBG2105 / NBG2105

The NBG2105 router operates on the 2.4 GHz frequency band. It offers decent wireless coverage and works with many devices. ZyXEL has a strong presence and offers a wide range of networking products.

ZyXEL NBG2105 specifications

BrandZyXEL
NameNBG2105
TypeNBG2105
Rating
Rated 4/5 based on 1475 user votes.
Launch2012

Body

Dimensions77 x 43 x 16 mm
Weight30 g

The dimensions and design of a router can impact its cooling capabilities. Routers with larger dimensions may have more space for internal cooling mechanisms. The weight of router is not typically a critical factor for most home or office setups.

System

ChipsetRealtek RTL8196EU @ 400 MHz
RAM32 MB
Flash4 MB
OSZyXEL
Power supply5 V / 1 A

The ZyXEL NBG2105 router has a Realtek RTL8196EU @ 400 MHz processor. You cannot expand the router's memory (32 MB). When choosing a router, it is important to consider the RAM specifications. A larger flash memory allows for more space to store configuration backups. ZyXEL often releases firmware updates. They improve the router's features, security, and bugs. They also add new features. The 5 V / 1 A PSU provides power to the router. If it breaks, you can replace it with a new one.

ZyXEL NBG2105 (NBG2105) / 2

Network

ProtocolsIPv4
LAN portsno
WAN ports1 x 10/100 Mbps
Mobile networkno
VPN supportno

The router supports many networking standards. It ensures compatibility with different devices and systems. The IPv4 is the fourth iteration of the Internet Protocol (IP). It is the most widely used version of IP on the internet today. The WAN port on the NBG2105 router is a Fast Ethernet port, not a Gigabit Ethernet.

Wireless

Antennas1 x 2 dBi
internal
2.4 GHzyes
5 GHzno
60 GHzno
StandardsIEEE 802.11b/g/n
ClassN150
Speed150 Mbps
Transmit power16 dBm
SecurityWEP
WPA
WPA2
WPS
Guest networkno

This router has 1 x 2 dBi, internal antennas. Antennas are key parts of wireless routers. They send and receive radio signals to make wireless connections. The NBG2105 is compatible with 2.4 GHz Wi-Fi networks. This is a Wi-Fi 4 (802.11n) router. Wi-Fi 4 improved the range and coverage compared to previous Wi-Fi standards.. The top speed, 150 Mbps, is the highest data rate the router can reach. It's the theoretical limit in perfect conditions.

WEP was the first Wi-Fi security protocol. But it is now seen as weak and easy to hack. The introduction of WPA2 (Wi-Fi Protected Access 2) improved upon WEP. It provides stronger security. WPS (Wi-Fi Protected Setup) provides an easy method. It connects devices to a Wi-Fi network.

ZyXEL NBG2105 (NBG2105) / 1

Connectivity

USB portsno
Print serverno
File serverno

The NBG2105 router doesn't have file-server or print-server functionality.

Administration

Default IP192.168.1.1
Default usernameadmin
Default password1234

Changing the password often is a good security practice. It protects your network and devices from unauthorized access. Changing the default password improves your router's security. It reduces the risk of unauthorized individuals controlling your network.

Pros and Cons

Every router, including this ZyXEL one, has its good sides and not-so-good sides. Let's take a closer look at both to get a full understanding of what this router can do. We'll talk about what it does well and also where it could use some improvements. Just remember, this is just what I think, and you might see things differently.

Pros

  • lightweight
  • WPS friendly

Cons

  • insufficient flash
  • lack of Gigabit LAN
  • Non-gigabit WAN port
  • missing Wi-Fi 6 support
  • lacks Wi-Fi 5 compatibility
  • reduced Wi-Fi bandwidth
  • incompatible with WPA3
  • no USB connectivity

ZyXEL NBG2105 photos

ZyXEL NBG2105 / NBG2105 photo
ZyXEL NBG2105 / NBG2105 photo
ZyXEL NBG2105 / NBG2105 photo
ZyXEL NBG2105 / NBG2105

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Robert Miller
For over 15 years, I've immersed myself in the world of networking devices as a tech aficionado. I've dedicated myself to thoroughly testing and analyzing routers and other networking gear. I aim to provide thorough reviews. They will give you the knowledge needed to improve your network.
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