Problem with internet connection and Linksys befsr41

[ixelion]

I have a DSL modem a BEFSR41 Linksys router and a 10/100 switch, I have 3 computers connected. All is working fine except for one little problem.

On one of the computers, if the NIC is setup up as 100mbps full duplex internect connection becomes very slow, this is confirmed using an online speed test. When its set to 10 mbps half duplex it works at full speed.

This problem does not occure on other computers.

Thanks for any advice.

 

[JackMDS]

Why you think it is the BEFSR41.

I would try another NIC.

:sun:

 

[ixelion]

I dont think its a NIC because its a fairly new Gigabit Ethernet (integrated), so I dont think it would be causing the problem. I dont necessarily suspect the router im mearly listing the hardware used.

I wil be buying a new D-link router in hopes that it will fix this problem, any more advice is appreciated.

 

[multiband8303]

beacuse new stuff always works right? Try a different nic

 

[avi85]

what's the distance of the cables? at a certain point 100Mbps becomes inefficiently slow and 10Mbps is faster (at long distances).
I have a befsr41 with the same problem by the way.

 

[ixelion]

my house is 2 levels plus a basement, the router is in the basement and the computer is at the top most level.

Its safe at assume its not the router cause I just replaced it and can still reproduce the problem.

 

[JackMDS]

$9.99 shipped free, http://3btech.net/molppci10nec.html

Or $13.99 locally http://www.compusa.com/products/product...o.asp?product_code=50170110&pfp=BROWSE

:sun:

 

[ixelion]

It is still not clear to me that the NIC is the problem. If cable distance is indeed an issue, will the NICs in the links you provided solve that, if it is indeed the issue?

 

[nweaver]

cat 5e is rated at 100 Meters (320ish feet) but that assumes you have a good job on the ends, have you tried taking the old router and plugging it in with a short cable near the computer?

It's most likely eitiher cable, nic, or drivers. You could also try a linux livecd to see if it can DHCP to rule out drivers.

 

[ixelion]

cat 5e is rated at 100 Meters (320ish feet) but that assumes you have a good job on the ends, have you tried taking the old router and plugging it in with a short cable near the computer?

I havent tried that, but as I stated earlier the other computer which is actually located in the basement does not have this problem at all, the only computer that does is the one located at the topmost level of my house.

I'm using the latest drivers for the troublesome NIC, and this problem presisted in a fresh install of windows, so I dont think it's driver conflict or something, I will try using an older driver and see if it does anything.

Thanks for all the advice.

 

[avi85]

Originally posted by: nweaver
cat 5e is rated at 100 Meters (320ish feet)

this does not mean that there is no signal degradation, I still think that the problem is the length of the cables.
I would suggest taking your router upstairs and checking the speed between the problematic computer and a laptop or some other computer and I'll bet you will see great speeds.