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Capped network speed...network card?

post #1 of 11
Thread Starter 
Hey guys I have a problem here. I have comcast as my internet provider and recently I started experiencing very slow internet speeds while browsing and downloading. I did a speedtest and it showed to have 10mpb/s download (mind you I have 20mbp/s service) so that is half of the value I am getting. After getting a technician to come out, he tested both my laptop and my brother's computer both of which showed speeds in excess of 20mpb/s.

The technician went on the conclude that it might be a faulty network card. Can a network card really cap my speed in such manner? I am such a noob when it comes to networking.
post #2 of 11
If you're only syncing at 10 mbit then yes.
A crappy cable can also force down your sync speed.

If applicable try another:
Cable
Switch port
NIC

Although, sync speed should be listed in task manager (CTRL+ALT+DEL).
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post #3 of 11
Thread Starter 
yep syncing at only 10mpb/s
post #4 of 11
test copy speeds from pc to pc on your lan, if they are getting capped at 10m/s, its lan related

make sure your cables are cat5e and routers/hubs are 100,1000m/s
post #5 of 11
Sounds like the 802.3u negotiations protocol is working just as it should. Do what Beers says.
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post #6 of 11
Quote:
Originally Posted by ffejrxx View Post
test copy speeds from pc to pc on your lan, if they are getting capped at 10m/s, its lan related

make sure your cables are cat5e and routers/hubs are 100,1000m/s
Anything in the last >10 years is at least 10/100.

Also, testing transfers between PC's while only being sync'd at 10 mbps is a waste of time. You aren't going to go higher than 10 mbps if that is your sync speed.

I'd imagine replacement of one of the components above in order will alleviate the issue.
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post #7 of 11
Thread Starter 
just tried xfering a file to my brother next room. Speeds do not exceed 400kb/s sigh and they used to be well over 1gb/s before. Also I checked out his pc and he is not capped. He is running full 100mbps. Tried cat 5 cat 6 cables no result. At this point I am thinking its the router. I dont know
post #8 of 11
Thread Starter 
Tried different switch port with no result, last thing on beer's list is NIC. What do you mean by that?
post #9 of 11
Thread Starter 
Found a solution my damn self guys ))

Basically I went into device manager, network adapter, right click on Intel Gigabit Network Connection, properties, link speed, changed it to Full Duplex 100mbit.

There was also an option for 1gb/s Full Duplex as well would that make it faster )

Did a speed test, everything working as intended with a 20mbit download.
post #10 of 11
switching to 1gb/s Full Duplex woukld only give you an increase in LAN transfers if you router or switch is gigabit if they are only 10/100 then you will not gain anything
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