All clients must send a well-formed user agent that includes company name, model number, and software build revision.An example would be: Actual HTTP request should look like following fragment.I monitor 2 actiontec devices (different locations..different DYN host names - One is a Rev. I)I have the paid version of DYNDNS - not even sure if they have the free anymore Tonight I noticed that the DYNDNS is not updating in the Actiontec..I'm getting "Not Updated - No response from dyndns.org"My account is in good standing on DYNDNS, and I can even authenticate on another web device using both host names.This can make it difficult or impossible to connect to services at home, like remote desktop or FTP.
An update client is a computer application or a feature in your router that keeps your hostname’s IP address up-to-date.Years ago someone at Dyn DNS (the guy that started/was running it in fact) told me never use the update software built in to routers (at that time). For the record, the Actiontec Dyn DNS code apparently doesn't work at all anymore. I don't see Verizon making much effort to actually fix this functionality.It has nothing to do with your account standing at dyndns.Fragment base-64-authorization should be represented by Base 64 encoded username:password string.If this parameter is not specified, the best IP address the server can determine will be used (some proxy configurations pass the IP in a header, and that is detected by the server).