What kind of range are you experiencing? What are you expecting?
I've got an AC68W and have also recently used the Linksys EA6900 and the Netgear R7000.
My own personal experience is that you're not going to get better single-box range than what the A68U provides.
If you need better coverage, you'd be better off looking at adding APs to your network.
It depends on what kind of coverage you are looking for.
I needed to improve 2.4Ghz coverage in a couple of places on my property so I bought two refurbished Netgear WGR614's. I paid like $20 for both of them together. Configured them in AP mode and wired them up to my router.
Simple and straightforward.
If you need both bands then you'll have to get a dual-band AP. The same concept applies - you set it up in AP mode (turn the router and FW off) and then connect it to your main router via ethernet cable.
If you can't use ethernet cable, you have a bit of a problem. Extending via wireless affects throughput and/or consumes a radio for the extended connection. Extending via wireless is not ideal.
I've never had good luck with after-market antennas. They don't actually improve the signal strength the way you'd think. Also, a lot of the antennas out there are only single-band, which means they won't work with a lot of these 3-antenna dual-band routers.
If you extend via wireless, the ideal situation would be to use a dual radio unit - one radio to connect to the router and one radio for clients to connect. The problem with this is that it won't give you simultaneous 5Ghz and 2.4Ghz coverage and ultimately your throughput will be limited to whatever the weakest link can attain.
I wouldn't recommend trying to extend your wireless range with a single-radio extender, it cuts your throughput in half instantly.
That is what I recommend as well.
Just be aware that you cannot cover both bands that way. If you use the 2.4Ghz band for clients, you need to use the 5Ghz band for the connection to the router and vice versa.
The router has two radios, 2.4Ghz and 5Ghz. One of them will have to be used for the router-to-router connection. The other will then be used to connect clients.
dir-655 wont work lol.
i have rt-ac66u and dir-655
oh.. i read a guide somewhere and it was mentioned that it can be turned into AP.
i've linksys wrt54g with dd-wrt firmware on it but "G" will be slow i guess :S
The DIR-655 is single-radio. So is the WRT54G. You can't use them for what you want.
Both of them can be used as access points but you have to connect them to your main router with an ethernet cable.
You need a simultaneous dual-band router to do what you want.
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