Known issues:

  1. More information is needed about this router's perfomance in a corporate setting
  2. SIPALG is enabled by default and can be turned off in the Web interface
  3. DNS Relay/Proxying is enabled by default and can be disabled by applying LAN Side DNS via DHCP Menu
  4. DHCP DNS servers need to be modified to a set of efficient DNS servers to prevent registration failures on Polycom phones. 

Temporary Resolution:

  1. Log into the Frontier Actiontec F2250 Modem/Router
  2. Click on Advanced Setup
  3. Click ALG Settings (From the menu on the left side of any Advanced Setup.)
  4. Find SIP ALG and choose Disable
  5. Hit Apply
  6. Change your DNS configuration. The steps below are only needed if you have or plan to purchase Polycom phones.
    • These changes will take your computers, phones, and all other devices online for 10 minutes or much longer if an unexpected problem arises.
    • Make sure to only make the changes below when you can afford to take your network offline.
      1. Click on Advanced Setup
      2. Click on WAN IP Settings. (From the menu on the left side of any Advanced Setup.)
      3. In Select DNS type choose Static DNS Address and enter:
        • Primary DNS 8.8.8.8
        • Secondary DNS 8.8.4.4
      1. Click Apply Button
      2. Click on Advanced Setup
      3. Click LAN IP and DHCP Settings (From the menu on the left side of any Advanced Setup.)
      4. Find Set the DNS Values
      5. Select Static, enter:
        • Primary DNS 8.8.8.8
        • Secondary DNS 8.8.4.4
      6. Click Apply
  7. Reboot Frontier Actiontec F2250 Modem/Router and all hosts on your network to accept these setting changes.

Permenant Resolution:

If any of the above options are not present then purchase a recommended router:

  • Purchase a Recommended Router if you do not have one already.
    • Intermedia cannot setup the new router for you, but your IT or the manufacturer of your new router can help you.  They will need to move settings from the old to the new router to ensure your computers and other devices on the network work properly.
    • Regarding DSL connections, you will need the "PPoE" username and password.
  • Call Frontier to bridge your internet gateway to your new router.
    • Note: It is at the discretion of the ISP, whether or not they will allow the modem to be bridged. If they choose to deny the request, then the above resolution will apply.

Additional Resources:

  1. Recommended Routers.
  2. Recommended Switches.
  3. Recommended LAN Configurations.
  4. Network Ports and Protocols for HPBX phones.