First post, but have tried reading around, and asking elsewhere and can't seem to find answers. I'm hoping someone might be willing to help. I tried setting up DynDNS within Tomato 1.26 (on WRT54G). I have the following settings in the GUI: Service (dropdown): DynDNS - Dynamic UN: [my DynDNS username] PW: [my DynDNS Password] Hostname: custom.chosenURL.net Wildcard: [unchecked] MX: [Blank; no idea what this does] BackupMX: [Unchecked] Save state When IP Changes (NVRAM commit): [Checked] I tried asking on the DynDNS forum first, since I'm new at this and though it could be account settings, and according to them what I've inputted into Tomato seems reasonable. However, I'm still getting this error: Last Result: Wednesday October 28, 01:17:20 GMT-0400 2009: Invalid hostname. (1/3: Automatically retrying in 16 minutes) Forcing update doesn't change it. Can anyone tell me what I might be doing wrong? Sorry if it's some newbie error, but I really have tried looking around and solving it myself before posting. Thanks in advance.