Category:ZyXEL VMG3925 B10C

The ZyXEL VMG3925-B10C (B10C for short) is the elder sibling of the VMG1312 and was introduced March 2019 as a replacement to the discontinued VMG3925-B10B - it benefits from having Gigabit Ethernet ports and dual-band WiFi, you can see more differences on the VMG1312 Vs VMG3925 page. The specification is very similar to the VMG3925-B10B that it replaces (in fact the same firmware is used on the B10B and B10C), but benefits from a re-designed web interface (which is also available on the B10B from firmware version AAVF.12).

Quick Start

Guide with how to plug in and what the LEDs mean

Further Documents

Manuals and other documentation for the router

Settings & Configuration

Information about how A&A configure the router and what settings are available to customers

Software

Software information and downloads

ZyXEL VMG3925-B10C

Diagram of the front

Diagram of the rear

Inside

Rear panel

Basic Specs

• 4x 10/100M/1,000M ports.
• Modem supports VDSL (FTTC) and ADSL/ADSL2+ (Not G.Fast)
• WiFi is 2.4GHz and 5GHz, 802.11b/g/n, 802.11a/n/ac (3x3 802.11ac) (limited to 30 clients by default)
• MTU 1500 when in bridge mode not possible.

Suitable for:

• ADSL1, ADSL2+
• VDSL (FTTC), G.Fast (Modem doesn't support G.Fast, so you'd need a separate G.Fast modem)
• FTTP, FTTPoD

Router and Modem modes:

• an all in one modem/router/wifi
• an Ethernet (PPPoE) router plugged in to a separate VDSL or ADSL modem or a FTTP or FTTPoD ONT
• a bridging modem to a third-party PPPoE router (e.g. FireBrick, Mikrotik etc)

Security Advisories

ZyXEL have a page with their Security Advisories: https://www.zyxel.com/support/security_advisories.shtml

'Consumer' grade

It's worth noting that this is a consumer grade router which ideal for home use or for small offices. Different or additional hardware may be more suitable for larger or more complex networks, larger offices or to cover a larger area with WiFi access.

Factory Default Admin Username/Password

Note: Once configured, the router will have a different username and password as per Control Page settings.

Supervisor password:

The B10C has an autogenerated supervisor password which is hashed from the serial number, and usually unknown to us.

Manuals etc

• A&A Quick Start sheet
• Full manual From ZyXEL
• Request Source code