I was afraid of that. Should I have looked for something in the feature list when buying it? So far all the routers I have bought had the repeater option, so I assumed all of them support it. I was...

I got the TL-WR820N router today (which isn't listed in the model list above!!! so I selected WR840N sorry for the misdirection). When I tried to set it up as repeater I didn't see any option for...