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ZyXEL NBG6615 router review

300 + 867 Mbps
IEEE 802.11a/b/g/n/ac
Realtek RTL8197FS @ 660 MHz
128 MB / 16 MB

ZyXEL introduced the NBG6615 router in 2018. It is powered by Realtek RTL8197FS @ 660 MHz chipset, 128 MB of RAM, and 16 MB of flash memory.

Curious to see if this router impresses? Keep scrolling!

Table of Contents

  • ZyXEL NBG6615 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 NBG6615, please let us know. Furthermore, we strive to deliver a thorough and precise overview.

ZyXEL NBG6615 / NBG6615

The NBG6615 supports dual-band Wi-Fi, offering both 2.4 GHz and 5 GHz bands. ZyXEL is a well-respected manufacturer in the networking industry. They have a reputation for providing a variety of networking devices.

ZyXEL NBG6615 specifications

BrandZyXEL
NameNBG6615
TypeNBG6615
Rating
Rated 4/5 based on 1110 user votes.
Launch2018

Body

Dimensions160 x 111.8 x 29.2 mm
Weight254 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. If you purchase a router online or have it shipped, the weight may affect the overall cost.

ZyXEL NBG6615 (NBG6615) / 1

System

ChipsetRealtek RTL8197FS @ 660 MHz
RAM128 MB
Flash16 MB
OSZyXEL
Power supply12 V / 1.5 A

The ZyXEL NBG6615 router has a Realtek RTL8197FS @ 660 MHz processor. Some router features and software need a certain amount of RAM. They need it to work well. More storage space comes from a larger flash memory. It can accommodate future firmware upgrades. ZyXEL often releases firmware updates. They improve the router's features, security, and bugs. They also add new features. The 12 V / 1.5 A PSU provides power to the router. If it breaks, you can replace it with a new one.

ZyXEL NBG6615 (NBG6615) / 2

Network

ProtocolsIPv4
IPv6
LAN ports4 x 10/100/1000 Mbps
WAN ports1 x 10/100/1000 Mbps
Mobile networkno
VPN supportno

The NBG6615 router has built-in security features. They protect your network and devices. 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 latest firmware supports IPv6. It provides a system to identify and locate computers on networks. If you have a 1 Gbps or faster internet plan, you need gigabit Ethernet ports. They are essential to use all the available bandwidth. This router ensures that you can use fast internet from your ISP fully.

ZyXEL NBG6615 (NBG6615) / 3

Wireless

Antennas4 x 3 dBi
fixed
2.4 GHzyes
5 GHzyes
6 GHzno
60 GHzno
StandardsIEEE 802.11a/b/g/n/ac
ClassAC1200
Speed300 + 867 Mbps
Transmit power28 dBm
SecurityWPA
WPA2
WPS
Guest networkyes

This router has 4 x 3 dBi, fixed antennas. Antennas are key parts of wireless routers. They send and receive radio signals to make wireless connections. The 2.4 GHz band is widely supported by many devices. This includes older ones that may not work with the 5 GHz band. The 5 GHz band offers better noise immunity and less interference. It also has more available channels. The AC Wi-Fi router is backward compatible with older Wi-Fi devices that support 802.11a/b/g/n standards.

Real-world NBG6615 router speeds are lower than its theoretical maximum speed. 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.

Connectivity

USB portsno
Print serverno
File serverno

The NBG6615 router doesn't have file-server or print-server functionality.

Administration

Default IP192.168.2.1
Default usernameadmin
Default password1234

If you can't log in to your ZyXEL router's setup panel, try resetting it. A reset can help you troubleshoot. It is highly recommended to change the default password of your NBG6615 router. Do this after the initial setup.

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
  • sufficient memory
  • IPv6 capable
  • high-speed LAN port
  • high-speed WAN port
  • works on 5 GHz band
  • WPS friendly

Cons

  • insufficient flash
  • missing Wi-Fi 6 support
  • incompatible with WPA3
  • no USB connectivity

ZyXEL NBG6615 photos

ZyXEL NBG6615 / NBG6615 photo
ZyXEL NBG6615 / NBG6615 photo
ZyXEL NBG6615 / NBG6615 photo
ZyXEL NBG6615 / NBG6615 photo
ZyXEL NBG6615 / NBG6615

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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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