Instructions apply broadly to all cable modems and router-modem combos.
How Do I get in to My Modem?
Open any web net web surfer and slide in your modem’s IP address in the URL bar.

Look for theDefault Gateway.
key in your modem’s user ID and password.
you’re able to find this information on the underside of the modem.
You may also find the modem’s IP address listed near the user ID and password.
The modem’s admin interface will differ depending on your modem.
How Do I Find My Modem Username and Password?
Why Can’t I Access My Modem prefs?
Try these troubleshooting steps:
Use a different surfing app.
Ensure the physical connections (the coax cable, Ethernet cable, etc.)
are tight and secure.
Power cycle the modem.
Turn off your internet security tools.
If you’re running a Firewall or other protective software, it could be causing interference.
Factory reset the modem.
Enterhttp://192.168.100.1into the search bar and pressEnterorReturn.
Enter the modem’s username and password, and then access your tweaks.
Note: the default username isadminand the default password ispassword.
sign on with your Xfinity modem’s username and password, and then access your prefs.
If you haven’t changed your username and password, the defaults areadminandpassword.
Comcast’s modem product names fall under the Xfinity brand.
sign on with your Comcast/Xfinity modem’s username and password, and then access your parameters.
If you haven’t changed your username and password, the defaults areadminandpassword.
jump in with your Arris modem username and password.
If you haven’t changed your username and password, the defaults areadminandpassword.