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What Wifi Setup To I Need To Handle A 100 Mbps Docsis Link


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Posted

as per the title, have a friend who has a 100 MBs DOCSIS link, but has a ".g" wifi modem ( which maxes out at about 20 MBs i think ). What set up does he need ? .

Has the Modem already ( where the external Co-ax line is coming in ), but needs to add on to it a Wifi AP which can handle 100Mbs. Which model / brand.

second question, on the device side, what does he need in his laptop to be able to recieve 100 Mbs ? a dongle, or his normal wifi via laptop can handle it ?

Thanks

Posted

Check smallnetbuilder.com for performance tests.

Unfortunately, you'll not get full 100 Mbits at all times with small laptop wifi antenna.

I use rt-n66u in 20mhz mode, due to many wireless routers around my house (mooban) and it gives me 144 mbits from upstairs, 72 to 80 Mbit in real. So he will need to operate wifi in 40 mhz mode to get 300 or 450 mbits connection speed, then you cut this rate into half for real throughtput (300 = 150 mbit one way max).

Also, I prefer 5 ghz mode which is almost empty and gives much better latency and throughtput compared to 2.4 ghz.

Posted

Check smallnetbuilder.com for performance tests.

Unfortunately, you'll not get full 100 Mbits at all times with small laptop wifi antenna.

I use rt-n66u in 20mhz mode, due to many wireless routers around my house (mooban) and it gives me 144 mbits from upstairs, 72 to 80 Mbit in real. So he will need to operate wifi in 40 mhz mode to get 300 or 450 mbits connection speed, then you cut this rate into half for real throughtput (300 = 150 mbit one way max).

Also, I prefer 5 ghz mode which is almost empty and gives much better latency and throughtput compared to 2.4 ghz.

Thanks !

Posted

Sounds like he needs a gigabit wireless router and a dongle for his computer - i.e; 802.11ac standard . Maybe this is available in Thailand: ASUS RT-AC66U.

Posted

Actual throughput-wise that going to be tough for Wifi. He'll probably need to use an Ethernet connection to get the full 100Mb (actually around 105Mb).

Posted

The regular laptop user should be ok with a "n" adaptor that's built-in. Most of the time the link won't be pushing the full speed anyway. If someone is a power user downloading from usenet or running a server then they'll likely have a workstation and/or not need advice on a forum.

My advice for an upgrade would be; If the cable modem does not come with a new wireless router then add one of those first, and if not happy with speed, then upgrade wireless card in laptop to match router... either "n" or newer "a.n" standards to match the router.

  • Like 1
Posted

Check smallnetbuilder.com for performance tests.

Unfortunately, you'll not get full 100 Mbits at all times with small laptop wifi antenna.

I use rt-n66u in 20mhz mode, due to many wireless routers around my house (mooban) and it gives me 144 mbits from upstairs, 72 to 80 Mbit in real. So he will need to operate wifi in 40 mhz mode to get 300 or 450 mbits connection speed, then you cut this rate into half for real throughput (300 = 150 mbit one way max).

Also, I prefer 5 ghz mode which is almost empty and gives much better latency and throughput compared to 2.4 ghz.

I have a couple of questions:

- How did you measure the speed of your router - you got the 144 mbits upstairs (72 to 80 mbits in the real)?

- How is the speed from the incoming Internet line wire different from the router's speed?

- Can you explain the terms 'latency' and 'throughput'?

Posted

Modem is upstairs, my laptop is in downstairs.

My connection speed shows 144 mbit on 2.4 ghz and 110-130 mbit in 5ghz (5ghz signal is weaker)

i get up to 10 mbyte/sec when transferring files to my nas connected to router. Thats my real speed, not 144 mbit shown in connection.

when i download something on usenet, 5ghz gives more reliable download speed (no fluctations) compared to overcrowded 2.4 ghz.

i get full 20 mbits from both 2.4 and 5 ghz, but i prefer 5 ghz any given day.

Posted

Is the rule of the thump still that in practice wifi can deliver 1/3 of the promised speed effective data transfer?

If it is then you should get and wifi pair which can give 300Mbps to 450Mbps connection.

Posted

See http://reviews.cnet....o-be-expensive/ for a group test with transfer rate speed charts.

Thanks.

Following a link to http://reviews.cnet.com/routers/asus-rt-n56u-dual/4505-3319_7-34200558-2.html gives a real life information.

For the 5Ghz band, in a throughput test where the router was set up to be 15 feet from the client, it scored 112.6Mbps. At this speed, it can blast through 500MB of data in just around 30 seconds, which is the fastest we've seen for a wireless router. When we increased the range to 100 feet, the router still scored 76.1Mbps, which is the second best score on that test, just a tad slower than the 79.1Mbps of the Linksys E4200.

The RT-56U didn't do as impressively on the 2.4Ghz, but still managed to stay among the top three routers we've reviewed. In the throughput test, it scored 57.2Mbps and in the range test it offered 34.4Mbs. Finally, in the mixed-mode test where it was set to work with both N and legacy wireless clients, the router scored 52.6Mbps, which is a very good number.

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