Image of a 3Com router with 'Router Default IP Addresses' text and the 3Com logo

3Com Default IP Address List
Instructions to find your 3Com router's IP address

Info updated Sept. 16, 2019

Most 3Com routers have a default IP address of 192.168.1.1.

Pro tip: If you're already connected to the router's network you can use this tool to instantly see your 3Com router's ip address

The IP address is required when accessing the 3Com router's web interface to configure it.
Since some of the models don't follow the standards, you'll have to check in the table below if the common default doesn't work.

You can also check the instructions on how to figure out your 3Com router ip if you are connected to the router's network.

Our readers have reported that their 3Com router's have had the following IPs
(more common higher in list)

  • 192.168.0.1
  • 192.168.1.1
  • 192.168.178.1

To access the web interface you'll also probably need a username and password, if you find your model in the list there's a link to the default settings for that model. Most 3Com routers use the same default usernames and passwords so you can also check the Default 3Com password list to try with that one.

Tip: Press ctrl+f (or cmd+f on Mac) to quickly search for your model number.

3Com default IP address List (Valid September 2019)

Model Default IP Netmask
3CRWDR101B-75 (WL-552)
3CRWDR101B-75 (WL-552) default username & password
192.168.1.1   Open 255.255.255.0
3CRWDR300A-73
3CRWDR300A-73 default username & password
192.168.1.1   Open 255.255.255.0
3CRWE454G72
3CRWE454G72 default username & password
192.168.1.1   Open 255.255.255.0
3CRWE454G75
3CRWE454G75 default username & password
192.168.1.250   Open 255.255.255.0
3CRWE754G72-A
3CRWE754G72-A default username & password
192.168.1.1   Open 255.255.255.0
3CRWER300-73
3CRWER300-73 default username & password
192.168.1.1   Open 255.255.255.0
HomeConnect 3CRWE50194
HomeConnect 3CRWE50194 default username & password
192.168.2.1   Open 255.255.255.0
OfficeConnect 3CRTRV10075 (WL-534)
OfficeConnect 3CRTRV10075 (WL-534) default username & password
192.168.0.1   Open 255.255.255.0
OfficeConnect 3CRWDR200A-75
OfficeConnect 3CRWDR200A-75 default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWE454A72
OfficeConnect 3CRWE454A72 default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWE51196
OfficeConnect 3CRWE51196 default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWE52196
OfficeConnect 3CRWE52196 default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWE554G72
OfficeConnect 3CRWE554G72 default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWE554G72TU
OfficeConnect 3CRWE554G72TU default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWER100-75
OfficeConnect 3CRWER100-75 default username & password
192.168.1.1   Open 255.255.255.0
OfficeConnect 3CRWER200-75
OfficeConnect 3CRWER200-75 default username & password
192.168.1.1   Open 255.255.255.0

Instructions and common questions

How to find out your 3Com router gateway IP

In case you have changed your 3Com router's default IP address and can't remember it you can find it out quite easily by following the instructions below.
(This also works when the router gets it's IP address assigned by DHCP.)

Find 3Com router ip on Windows

  1. Press Win + r
    A run prompt should open
  2. Type cmd into the input and press enter
    A command prompt will open
  3. Type the following into the command prompt: ipconfig | findstr /i "Gateway" and click enter.
  4. Your Default gateway, probably something like 192.168.0.1, will show

Find 3Com router ip on Linux

  1. Open a terminal window (Shortcut on some distros: ctrl+alt+t)
  2. Type the following: ip route | grep default and press enter.
  3. You will be presented with your 3Com router's IP address

Find 3Com router ip on OSX

  1. Open the OSX Terminal: Finder > Applications > Utilities > Terminal
    Or you can press cmd+space and type terminal
  2. Type the following command: netstat -nr | grep default and press enter.
  3. Your 3Com router default IP will be shown, something like 192.168.0.1