Known Issues

  1. This stub article exists to document how even after SIP ALG is disabled and other necessary Netgear changes are made, this router drops RTP (voice/fax audio) on incoming calls/faxes.  This causes intermittent fax failures or incoming calls resulting in one-way audio or dead air right after answering.
  2.  Many firmware versions have DNS relay/proxy enabled by default, which causes DNS lookup timeouts on Polycom phones.  That setting needs to be disabled to prevent intermittent or frequent phone registration failures.
  3. Therefore, we do not recommend this router since it's compatibility can be hit or miss, depending on what firmware version you are using.
  4. This routers also come with SIP ALG enabled by default.
  5. Also WAN Pings is disabled by default, which is an optional setting that is needed to allow the router to respond to our Call Quality Monitoring and Troubleshooting Ping Server.

Temporary Resolution

  1. Perform the changes in the article Netgear: Instructions For Many Netgear Routers.

Permanent Resolution

  1. Replace your Netgear router with a different serviceable or 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.