To be able to use all of the DD-WRT fearures, the router hardwre has to support it.
Few things that one should keep in mind.
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Router must have 8mb flash
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It should preferably have Broadcom chipset and not Atheros. Atheros based hardware does not support all the features and evetually one will have to invest in Broadcom based routers.
I learened this hardway. After installing dd-wrt on TP-LINK WR841N router, I realized important fetures were missing and moreover I was unable to install any additional packages. Then I invested into Asus RT N16 which has been working fine for me.
I had the following issues with TP-LINK WR841N.
- File system was read only.
- Radio signal option was not available so that I can turn off the wireless signals in the night.
- Couldn’t install any packages as file system was read only.
My analysis on router manufactures
- D-Link: No Broadcom chip set is available on routers that are available in indian market.
- TP-Link: No Broadcom chip set routers.
- Linksys: Expensive routers and not good user experiences.
- Netger: I have found routers not so reliable.
- Asus: In my opinion Asus routers are best.
Please refer to Supported Devices - DD-WRT Wiki to know about your router hardware.