Home hub allows any old rubbish.
Config
> Settings > enter password.
Port forwarding
Secure Shell Server (IIRC)
forwarded to BLAH
but IIRC this is for external traffic, I was not aware internal traffic carried a port 22 restriction.
EDIT: Yeah, this should only apply if you attempted to go outside the 192.168.x.x range and resolve the kindle via an externally referenced ip (your public ip for example would be a sensible option) and checked external connectivity to the kindle service
FIREWALL SETTINGS: DEFAULT: Allow all outgoing connections and block all unsolicited incoming traffic. Port forwarding is allowed.
Have you checked the OS you are using is actually letting the request out? or the pings?
Is this on windows as a host? Cheers. HTH a bit.
EDIT: I just went and checked one. I doubt itś your router