3Com Router Admin Login Procedure

To login into any model of 3com (be it 3CR858-91, 3CRWDR101A-75 or any other), you need router IP, username ID & router password. All this info and other, is already given in 3Com router manuals but if you have lost your manual or you don't have time to go through it and need a quick fix then follow below.

To access the 3Com router admin console of your device, just follow this article. You can find correct 3Com login IP, Router Username & Password, below.

List of 3Com Router Login IPs

There are 8 3Com Router Models. See below, to find all likely IPs against your particular model number!

Router Model Possible Login IP Address
3CR858-91 192.168.1.1
3CRWDR101A-75 192.168.1.1
3CRWDR101E-75 192.168.1.1
3CRWDR300A-73 192.168.1.1192.168.1.2192.168.1.254
3CRWER100-75 192.168.1.1192.168.1.2192.168.100.8
3CRWER200-75 192.168.1.1192.168.1.2192.168.100.8
3CRWER300-73 192.168.1.1192.168.1.2192.168.1.254
WL522 192.168.1.1192.168.1.2192.168.1.254

3Com Router Username & Password

From the methods given above, if you have found the right IP, then put it into the browser to access admin panel. A screen will appear like below. It's asking for login credentials.

router login screen before

Method No. 1: Try these Username & Passwords

Time and again people from all around the world have off and on told us about login credentials which most likely work for them. With patience, try that applies to your 3Com model.

Router Model Username Password
3COM COREBUILDER Rev. 7000/6000/3500/2500 debug synnet
3COM COREBUILDER Rev. 7000/6000/3500/2500 tech tech
3COM HIPERARC Rev. V4.1.X adm (none)
3COM LANPLEX Rev. 2500 debug synnet
3COM LANPLEX Rev. 2500 tech tech
3COM LINKSWITCH Rev. 2000/2700 tech tech
3COM NETBUILDER admin (none)
3COM OFFICE CONNECT ISDN ROUTERS Rev. 5X0 n/a PASSWORD
3COM SUPERSTACK II SWITCH Rev. 2200 debug synnet
3COM SUPERSTACK II SWITCH Rev. 2700 tech tech
3COM OFFICECONNECT 812 ADSL adminttd adminttd
3COM WIRELESS AP Rev. ANY admin comcomcom
3COM CELLPLEX Rev. 7000 tech tech
3COM CELLPLEX Rev. 7000 admin admin
3COM HIPERARC Rev. V4.1.X adm (none)
3COM LANPLEX Rev. 2500 tech (none)
3COM CELLPLEX admin synnet
3COM SUPERSTACK II SWITCH Rev. 2700 tech tech
3COM CELLPLEX Rev. 7000 root (none)
3COM HIPERACT Rev. V4.1.X admin (none)
3COM CELLPLEX Rev. 7000 tech (none)
3COM CELLPLEX Rev. 7000 admin admin
3COM SUPERSTACK 3 Rev. 4XXX admin (none)
3COM SUPERSTACK 3 Rev. 4XXX monitor monitor
3COM SUPERSTACK 3 Rev. 4400-49XX manager manager
3COM NETBUILDER Root (none)
3COM 3C16450 admin (none)
3COM 3C16406 admin (none)
3COM OFFICE CONNECT ISDN ROUTERS Rev. 5X0 n/a PASSWORD
3COM COREBUILDER Rev. 7000/6000/3500/2500 n/a admin
3COM COREBUILDER Rev. 7000/6000/3500/2500 n/a (none)
3COM OFFICECONNECT ADSL WIRELESS 11G FIREWALL ROUTER Rev. 3CRWDR100-72 (none) admin
3COM INTERNET FIREWALL Rev. 3C16770 admin password
3COM SHARK FIN Rev. COMCAST-SUPPLIED User Password
3COM 812 Administrator admin
3COM CELLPLEX Rev. 7000 operator (none)
3COM 3COM SUPERSTACK 3 SWITCH 3300XM security security
3COM SUPERSTACK II Rev. 1100/3300 3comcso RIP000
3COM NETBUILDER (none) admin
3COM CELLPLEX Rev. 7000 tech tech
3COM SUPER admin (none)
3COM CELLPLEX Rev. 7000 admin admin
3COM CELLPLEX Rev. 7000 root (none)
3COM NETBUILDER admin (none)
3COM CELLPLEX Rev. 7000 operator (none)
3COM OFFICECONNECT 812 ADSL Rev. 01.50-01 admin (none)
3COM CELLPLEX admin admin
3COM HIPERACT Rev. V4.1.X admin (none)
3COM 3C16405 n/a (none)
3COM 3C16405 Administrator (none)
3COM SWITCH Rev. 3300XM admin admin
3COM SS III SWITCH Rev. 4XXX (4900 - SURE) recovery recovery
3COM OFFICECONNECT WIRELESS 11G CABLE/DSL GATEWAY (none) admin
3COM 3C16405 admin (none)
3COM OFFICECONNECT 812 ADSL Rev. 01.50-01 admin (none)
3COM CELLPLEX n/a (none)
3COM CELLPLEX admin admin
3COM HIPERACT Rev. V4.1.X admin (none)
3COM 3C16405 Administrator (none)
3COM CELLPLEX Rev. 7000 tech (none)
3COM SWITCH Rev. 3300XM admin admin
3COM SS III SWITCH Rev. 4XXX (4900 - SURE) recovery recovery
3COM OFFICECONNECT WIRELESS 11G CABLE/DSL GATEWAY (none) admin
3COM 3CRADSL72 Rev. 1.2 (none) 1234admin
3COM CB9000 / 4007 Rev. 3 Type User: FORCE (none)
3COM OFFICECONNECT n/a (none)
3COM SUPERSTACK II NETBUILDER Rev. 11.1 n/a (none)
3COM OFFICECONNECT admin (none)
3COM OFFICE CONNECT Rev. 11G admin (none)

Method No. 2: If above credentials don't work, Try this!

Just look closely at your 3Com router for sticker like this:

router sticker

These are default credentials for your device. Try them, it will work (if you didn't changed them in past)

Method No. 3: I tried everything but nothing is working!

An ultimate trick in this scenario is to reset your router. Just look for a small button like below (hidden inside). Press it with a needle or match-stick for 10 seconds and restart your device & go back to Method No. 2 (above). And you will be all set!

Setup Manuals for Each Model of 3Com Routers

Luckily, we have compiled list of router setup and configuration manual/manuals for 3Com routers. Currently, 8 manuals are displayed below.

3CR858-91 View Manual
3CRWDR101A-75 View Manual
3CRWDR101E-75 View Manual
3CRWDR300A-73 View Manual
3CRWER100-75 View Manual
3CRWER200-75 View Manual
3CRWER300-73 View Manual
WL522 View Manual

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