75 Mbps through ethernet, but less then 20 mbps through wireless

jmflu · Jul 19, 2013

Hey I just got my cable speed upgraded and was doing some speedtests. My equipment is

Netgear CMD311 Modem
Linksys WRT300N v1.1 Wireless N Router

When I test ethernet, it gets very good like 75 mbps, but through wireless it gets 20mbps on my laptop and more like 13 mbps on my desktop wireless.

Both computers were in very close range to the router (like 20 feet)

I know wired is much better but it shouldn't be losing THIS much should it?

Any ideas on how to fix?

Thank you

jmflu · Jul 19, 2013

according to their web site

"The Linksys WRT300N offers Wireless-N performance up to 300 Mbps."

suddenstop · Jul 19, 2013

What is the wireless adapter in your laptop and desktop? You need a 3x3 configuration to hit those kinds of speeds and upgraded intel nics will do it, but the basic things will not.

jmflu · Jul 19, 2013

sorry im a bit noobin but my adapters are

Realtek RTL8191SE Wireless Lan Card 802.11N PCI-E NIC
and
Realtek PCIe GBE Family Controller

burdenbound · Jul 19, 2013

Can you do a speed test on your laptop at around 7 feet away, fairly close but not right on top of the router. It's pretty surprising how much speed you can lose even after about 20ft and a wall of two.

jmflu · Jul 19, 2013

Tested a few times one at the 7 feet mark and a few times tested in another room.

They consistently ranged from about 17-20 so not too different.

I fully expect to not get the same speed as ethernet, but is the difference usually so drastic?

edit: just tested upstairs as well and got 18

burdenbound · Jul 19, 2013

jmflu :

No you should be getting faster speeds than that, do you have an older laptop? The receiver in your laptop might be an older generation and not accept more than the 17-18 mbps. This could be the same issue with your desktop unless you can test the desktop a little closer and rule that out. If that is not the case I would say it's your router. Try getting a new slightly better class router, keep the receipt to return it if that doesn't fix the issue.

jmflu · Jul 20, 2013

burdenbound :

jmflu :

No you should be getting faster speeds than that, do you have an older laptop? The receiver in your laptop might be an older generation and not accept more than the 17-18 mbps. This could be the same issue with your desktop unless you can test the desktop a little closer and rule that out. If that is not the case I would say it's your router. Try getting a new slightly better class router, keep the receipt to return it if that doesn't fix the issue.

No it is a pretty new i7 inspiron - weird - firmware issue? Do custom firmwares like DDWRT help with things like this?

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75 Mbps through ethernet, but less then 20 mbps through wireless

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