Two of my PC's are running Vista and both seem to struggle with files over the network. I have an n capable router, an n capable laptop and a g capable PC, they are all struggling to put 2.5MB/Sec onto my NAS(Gigabit to the router Gigabit) which is mapped to the Vista PC's.

Anyone got any idea?

Vista is at SP1 which I'm lead to believe offered some improvement.

I've tried disabling remote differential compression.

I've tried disabling Auto Tuning.

I've tried forcing the router to g.

What model NAS is it?.. i know most "appliance" NASs cant come close to saturating a 100meg link, let alone a gb!

It's a Synology DS207 fitted with a Samsung Spinpoint 1TB SATA drive.

I think I may have gained a little by by tweaking the Frame settings on the NAS.

The speed I quoted was over wireless not cable.

Oh.. and by 2.5mb do you mean MegaBytes? - if so thats actually quite quick for wireless.

Try putting the NAS onto a 100mb port (i presume you have it in the gb uplink on teh draytek?)

Edited 26 January, 200917 yr by Neo_VR

Yes it's in the Giga port on the Draytek.

Does it just have the one disk in it?

If so a single disk will at best probably pump out 50-60MB/s with large sequential accesses.

Move that to random access and the data rate will drop and move it onto wireless and 2.5MB/s is 20Mbit which as Colin says is pretty good for wireless. Don't forget that the N devices try and use multiple channels and as such any other wireless in the area or bluetooth or dect phones and microwaves etc will drop your data rate.

Yes Col it's big M big B.

So you both think that 2.5 - 3 MB/sec is good then.

try speedtest over the wireless link and see what rate it gives you in Mbits.

Typically about half of theoretical maximum is good for wireless, so for 802.11G the 20Mbits is good

Networking is Vista's heel Stu, might be better to drop back to XP for this work.

Just looking on the synology forums, theres alot of complaints of people getting similar speed issues... not seen a decent resolution for it though.. some blame the cpu not being able to handle gbit.. others say the media indexing service etc etc.

Thinking realistically, vista reports 10-11MB/s when transferring over 100mb (from either another vista machine or linux), XP can only manage 9ish because of teh crap networking stacks..

so yes, 2.5-3MB/s seems about right for G wireless, dont forget that all wireless users share the same bandwidth too.

Not sure about the real-world performance of wireless N (has that even been ratified yet? IIRC the Draytek is only draft-N)

Gonna do some more tweaking today.

networks are measured in bits per second ... not bytes per second. So always remember to divide/multiply by 8 when trying to compare transfer speeds.

networks are measured in bits per second ... not bytes per second. So always remember to divide/multiply by 8 when trying to compare transfer speeds.

By the time you've counted in TCP/IP overheads, 10 is a reasonable rule of thumb, plus it's easier to divide by .

Indeed since you're using 8/10 encoding on a lot of things too.

I'd say the reason most PC's struggle with 1Gbit networking is down to the ability to move the data around at full line rate from the port to the main memory to be acted upon. In most lower end cards this requires CPU resource. Some intel (and maybe other makes) cards have a function in the driver which actually removes a lot of the CPU overhead by dealing in some way with the issue I've mentioned.

Also don't forget that firewalls add overheads and as I've posted above you might have a 54Mbit wireless connection but interference etc is going to reduce it down from maximum.

Networking is Vista's heel Stu, might be better to drop back to XP for this work.

I find vista with SP1 loaded, far faster than XP with SP3 for wired network transfers and when transferring across a gigabit wired lan can transfer a file of around 2GB to a remote machine (Windows home server) in less than 15 seconds.

Vista pre-sp1 had a bug in its tcpip stack, that has long been fixed by sp1.

I find vista with SP1 loaded, far faster than XP with SP3 for wired network transfers and when transferring across a gigabit wired lan can transfer a file of around 2GB to a remote machine (Windows home server) in less than 15 seconds.

Vista pre-sp1 had a bug in its tcpip stack, that has long been fixed by sp1.

I'm just going on what I heard tbh Manny, although it was heard pre SP1.

As Col said, for Wireless that's not actually to bad Stu. No chance of switching to a wired solution at all? My homeplug AV's are blindingly quick when compared to wireless at home. Even over something as simple as my Zyxel router (stone age compared to the draytek) I am getting very close to the quoted 200Mbit speed and streaming content from the NAS via Vista MCX's to the 360 plugged into a switch fed by a single homeplug is perfect for my collection of ripped blueray / hd movies with bandwidth to spare.