gig network

Mr-White · 18 Nov 2011 at 11:21

Shuttle SG31G2 with Win7 Pro 64-bit
Linksys Cisco SE2500 switch
Western Digital Sharespace
Using cat5e

I'm trying to get a gig connection from my Shuttle to my NAS. The Shuttle is only showing the network speed as 100mb. I've updated the NIC driver directly from Marvells website but it won't auto detect the speed, i've tried forcing 1000mb from the NIC options in device manager but it drops the network connection. Any ideas ?

MW

Phemo · 18 Nov 2011 at 11:44

Tried different cables? 100mbit uses only 4 of the 8 wires in an ethernet cable whereas 1000mbit uses all 8 so it's easy for a dodgy cable to cause this.

Deception · 18 Nov 2011 at 11:45

Dont forget to make sure the NAS is set to 1gb, not 100mb too(It might have an option).

*Edit* As above, have you get any different cables to try?

BusError · 18 Nov 2011 at 12:35

cat5e is not rated for gigabit normally. In a lot of case it works, but there'd no guarantee. Get a good cat6e cable.

ots3go · 18 Nov 2011 at 13:05

Cat5e will be fine for gigabit over a short distance.

I'd suspect your cable may not have a pair crimped correctly or one of the NICs is set to 100mb.

Phemo · 18 Nov 2011 at 13:15

BusError said:
cat5e is not rated for gigabit normally. In a lot of case it works, but there'd no guarantee. Get a good cat6e cable.

Incorrect, cat5 isn't typically recommended for longer gigabit cable runs but it'll usually still work. Cat5e most definitely is fine at 100 metres. There is absolutely no need for cat6 or cat6e with gigabit.

For more info you check this (somewhat old) Cisco link - http://www.cisco.com/en/US/tech/tk389/tk214/tech_digest09186a0080091a86.html#wp17263

jimjamuk · 19 Nov 2011 at 10:54

Cat5e is fine - set everything to Auto negotiate.

Mr-White · 19 Nov 2011 at 13:39

jimjamuk said:
Cat5e is fine - set everything to Auto negotiate.

This is what it's already set to. I might try cat6 as it's only a few quid for a short cable.

MW

Mr-White · 26 Dec 2011 at 16:23

I tried cat6 and it detected it as a 1000mb network

MW

Mr-White · 14 Jan 2012 at 12:34

The prob I have now is it's only transferring at 11-12mbps

MW

Tealc · 14 Jan 2012 at 13:25

11-12 mbps, wow that is slow. That's around the speed of USB 1.1 right? Or did you mean 11-12 MBps?

PistolPete · 14 Jan 2012 at 13:30

Mr-White said:
I tried cat6 and it detected it as a 1000mb network

MW

Was a dodgy cable then. I've got CAT5e running all over the house and I dont have any problems at 1G.

khrall · 14 Jan 2012 at 21:52

Mr-White said:
The prob I have now is it's only transferring at 11-12mbps

MW

That's still running as an 100Mb network then,

100 Mbs = 12.5 MBs (divide bits by 8 to get bytes)

Mr-White · 14 Jan 2012 at 23:23

khrall said:
That's still running as an 100Mb network then,

100 Mbs = 12.5 MBs (divide bits by 8 to get bytes)

When it was running at 100mb i was getting around 8mbps, since I changed to cat6 and being detected as 1gig it's now transferring at 11-12mbps. However I just upgraded my computer and now it's transferring at 21-22mbps.

MW

arobertson676 · 15 Jan 2012 at 08:14

As suggested, trying a different cable (or a bunch of other cables) might solve the problem. Some cables don't seem to like 1Gb for some reason.

Mr-White · 15 Jan 2012 at 08:57

arobertson676 said:
As suggested, trying a different cable (or a bunch of other cables) might solve the problem. Some cables don't seem to like 1Gb for some reason.

Even cat6 ?

MW

Nightglow · 15 Jan 2012 at 09:06

Been having similar issues with my network, which is all wired in Cat 6.
My problem turned out to be some patch cables, although sold as Cat 6, they would not work at gigabit speeds. :mad:

Changed the offending ones & everything is running superbly now.

Mr-White · 15 Jan 2012 at 09:12

I only bought 2 cat6 cables, 1 from NAS to switch and 1 from switch to computer

What sort of speeds should I be seeing ?

MW

Mr-White · 15 Jan 2012 at 20:18

Just got speeds of 34mbps transferring an iso image from the NAS

MW