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cant change to 1gbps duplex

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  • LAN
  • Internet Access
Last response: in Toms Network
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March 6, 2014 3:16:34 PM

hey i have issue with my GA-Z87X-UD4H whenever i try to change in device manger from 100mbps Duplex to 1gbps duplex it will say cable unplugged and the light on my d-link router will go off however if i restart the computer while it booting up the light is on and it go off once i get to my desktop

its work fine on 100mbps duplex

i am using cat5e cable

any ideas what i can try to do ?


i am using windows 7 64 bit

More about : change 1gbps duplex

March 6, 2014 3:27:09 PM

are you sure the router is configured correctly?
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March 6, 2014 3:30:44 PM

Spectre694 said:
are you sure the router is configured correctly?


well i didn't change anything i just took it out of the box and plugged it in

i have DSL d link should i change something in the configurations ?
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March 6, 2014 3:34:22 PM

What model is the router? Does it support gigabit?

Have you tried a different cable?
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March 6, 2014 8:30:13 PM

Someone Somewhere said:
What model is the router? Does it support gigabit?

Have you tried a different cable?


d link n600
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March 6, 2014 8:41:17 PM

That's not a model, that's a specification.
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March 6, 2014 9:54:22 PM

Someone Somewhere said:
That's not a model, that's a specification.


d link dual brand VDSL n6850U
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March 6, 2014 11:29:44 PM

I'm getting no hits on Google for it.

Can you check that's the model, and possibly post a picture of the box or link to where you got it from?
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March 7, 2014 12:19:37 AM

Someone Somewhere said:
I'm getting no hits on Google for it.

Can you check that's the model, and possibly post a picture of the box or link to where you got it from?


i went and bought new cable CAT 7 and still same problem nothing fixed
i don't think its the d link problem i mean the internet company gave it to me once i upgraded my internet speed



thank you for your help what else can i do?

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March 7, 2014 12:46:49 AM

It's possible that it's disabled in the router configuration. If you look in there for terms like 'green mode' or 'fast ethernet' you might find it.

I still can't find their page for it (looks like an OEM-only one). It's possible it doesn't support GbE.

Is there any particular reason you need Gigabit?
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March 7, 2014 1:22:16 AM

Someone Somewhere said:
It's possible that it's disabled in the router configuration. If you look in there for terms like 'green mode' or 'fast ethernet' you might find it.

I still can't find their page for it (looks like an OEM-only one). It's possible it doesn't support GbE.

Is there any particular reason you need Gigabit?

hey i found out now on the box its says x4 RJ 45 10/100 bas TX ethernet so i guess it don't support 1giga afterall

if i add 1gig switch to this router will it work on 1 gig ?

and i need 1 gigabyte because i am getting bottleneck i get only 89 mbps DL
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March 7, 2014 1:44:56 AM

What's your internet speed supposed to be? You normally need to knock ~10% off the top for overhead etc.

The link from the switch to the router would still only be 100Mb/s, so it wouldn't be any faster. WiFi might be faster though, as the bandwidth is significantly higher.
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March 7, 2014 1:50:47 AM

Someone Somewhere said:
It's possible that it's disabled in the router configuration. If you look in there for terms like 'green mode' or 'fast ethernet' you might find it.

I still can't find their page for it (looks like an OEM-only one). It's possible it doesn't support GbE.

Is there any particular reason you need Gigabit?


Someone Somewhere said:
What's your internet speed supposed to be? You normally need to knock ~10% off the top for overhead etc.

The link from the switch to the router would still only be 100Mb/s, so it wouldn't be any faster. WiFi might be faster though, as the bandwidth is significantly higher.



100 mbps DL speed and i am getting only 89
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March 7, 2014 2:02:42 AM

It's unusual to get more than ~90% of the download speed, even if on GbE. This is usually because of the overhead inherent in IP, TCP, and PPP.

This is quite country-specific, but some parts of it will apply to you. I can't find many other useful references.
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March 7, 2014 5:26:12 AM

Just too add this but you said that your router came from your ISP and honestly those are usually crap. what I would recommend doing is tell them you want a non router modem which will have only one Ethernet out and then plug that into a new router. It'll preform better but it is more expensive so you may not want to do that.
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March 7, 2014 5:30:27 AM

With most ISPs I've seen it's take our modem/router or buy your own everything.
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March 7, 2014 5:38:29 AM

Someone Somewhere said:
With most ISPs I've seen it's take our modem/router or buy your own everything.


That sucks I have ATT DSl and Charter at the old house gave us a choice what we wanted to get from them did have to specially request it though. I just figured that was how they all worked looks like I need to watch for that in the future now though.
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March 7, 2014 5:44:57 AM

Cable is generally a lot harder to use your own modem for - they link it to the modem serial number, by memory. Plus a poor quality modem can trash the connection of others in the area, while DSL is a point-to-point link and has very minor effects on others. DSL modems are a lot more commoditised; you can pick them up from basically any store and they'll work.
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March 7, 2014 5:51:25 AM

Someone Somewhere said:
Cable is generally a lot harder to use your own modem for - they link it to the modem serial number, by memory. Plus a poor quality modem can trash the connection of others in the area, while DSL is a point-to-point link and has very minor effects on others. DSL modems are a lot more commoditised; you can pick them up from basically any store and they'll work.


Ahh well thanks for the info I will have to keep that in mind didn't figure it was that much different
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March 7, 2014 6:31:24 AM

m1337 said:
Someone Somewhere said:
It's possible that it's disabled in the router configuration. If you look in there for terms like 'green mode' or 'fast ethernet' you might find it.

I still can't find their page for it (looks like an OEM-only one). It's possible it doesn't support GbE.

Is there any particular reason you need Gigabit?

hey i found out now on the box its says x4 RJ 45 10/100 bas TX ethernet so i guess it don't support 1giga afterall

if i add 1gig switch to this router will it work on 1 gig ?

and i need 1 gigabyte because i am getting bottleneck i get only 89 mbps DL


89 mbps download is pretty fast, especially for DSL which tends to be lower than cable or FIOS.

You can use a 1 gig switch and hook up your computers to the switch to get 1 gig speeds between your computers, but the internet connection to the ISP won't be any faster.

What speed service did you get?
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March 7, 2014 6:45:00 AM

VDSL can hit 200Mb/s with vectoring and a bunch of other cool stuff. Only when really close to a DSLAM, though. Think sub 100m. Usually in a comms room in the basement.
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