I've had the WLAE-AG300N for nearly three months now, and I'm getting to grips with its gremlins.
PROS:
- it works as universal range extender / ethernet converter with theoretically any base station (I've tried D-LINK, Netgear and Linksys base stations with it) supporting WPA-AES encryption, a big step forward from the common WDS systems, which hardly works at all.
- it supports both 2.4 and 5 GHz 802.11 a/b/g/n
- it's small and easy to set up, thanks to the clearly structured web interface
- with an array of those (inexpensive) devices, you can extend your wireless network a long way!
- it's very versatile; you can use it as access point, ethernet converter, repeater and WDS mode (it's not a router though, but then it's not sold as such)
CONS:
- it doesn't automatically start after power failure, you have to press the power switch to turn it back on (given that it's designed to sit hidden away and work by itself, that's a major flaw, particularly when you have an array of them)
- its operating band depends on the base station (i.e. if the base station broadcasts at 5GHz, the Buffalo will ONLY broadcast at 5GHz, if the base station operates at 2.4GHz, it will ONLY broadcast at 2.4GHz, if the base station broadcasts both, it will broadcast both, too).
- Multicast support is a disaster - with snooping enabled, it will gradually drop speed and eventually freeze all together (yes, my ISP supports multicast, so does my router)
- 40MHz bandwidth does not work when 2.4GHz band is used, regardless whether the base station broadcasts at 40MHz or not.
- it's very good a picking up a poor signal, but the repeated signal could be better. There is no option to adjust transmit power or beacon interval in the web interface.
- the ethernet ports are 10/100MBit/s only (with a theoretical maximum transmission speed of 300MBit/s with 802.11n at 40MHz, it seems silly, certainly when used as access point)
So, all in all I think this is an excellent device! It does what it says on the tin, and does it well, too.
I guess all of the above problems can be fixed by a firmware update, except the 10/100 ethernet ports.
I've been in touch with Buffalo about these issues, but they didn't think they matter much (when I raised the power failure point, their response was "the device is designed to behave in this way". That's clearly poor design then...).
I'm still very happy I bought it, I now have excellent wireless connection in the remote part of our house and connected a printer and internet radio to its ethernet ports, which all works very well!
Would give it 5 stars, if Buffalo could be bothered to sort out its problems.