Network transfer speeds have dissapeared..

[icetrayz]

Not sue what has happened here..

I currently have my C300 with a USB stick for apps, a 2TB and a 3TB WD Green drives installed in it. Both are formatted in NTFS. the 2tb drive is set to my media drive.

I was getting some good speeds after playing with the RWIN value on the C300 via telnet.

However now I can't ftp files to my C300 at speeds any faster then 10-11mb/s. I can transfer from the C300 at 20-21 Mb/s.

Does this sound about right?

In contrast i have a dlink network storage device which i can transfer from on the same network at 55Mb/s yet also can only send to at 11-13Mb/s.

Any help would be greatly appreciated.

[accident]

please clarify some things:

you mention the c300 transfering at different speeds..

10-11 at ftp?
20-21 using what???

Also there are some networking things that do happen only in 1 direction so can you make up a little chart of not only how your transfering but what device STARTS that transfer and in what direction. this does not mean what direction the copy is going, this is the device that starts the copy. For example, if your computer mapped to smb can copy TO the pch at 20-11, this is the PC starting the conneciton. Also if your coping from the pch to the pc but the pc is doing the copy, this is still STARTED by the pc even though the data is coming from the pch.

Basically it looks like you might have a duplex mismatch but you need to make a little chart of what starts the copy and what speeds your seeing in which directions to really know this. with some luck, it's a bad cable probably connected to the pch, but a full chart of the pch, your pc and the storage device will help pinpoint which ones may have a bad cable, it may not be the pch. With some luck if it's not a cable, you can't force the pch into a certain duplex mode so hopefully it's the storage device and that should have a half/full setting you can tweak..

It's not cut and dry and harder to find when your switch/router is unmanaged because it offers less options to repair and find

[icetrayz]

(03-05-2012 03:20 AM)accident Wrote:  please clarify some things:

you mention the c300 transfering at different speeds..

10-11 at ftp?
20-21 using what???

Also there are some networking things that do happen only in 1 direction so can you make up a little chart of not only how your transfering but what device STARTS that transfer and in what direction. this does not mean what direction the copy is going, this is the device that starts the copy. For example, if your computer mapped to smb can copy TO the pch at 20-11, this is the PC starting the conneciton. Also if your coping from the pch to the pc but the pc is doing the copy, this is still STARTED by the pc even though the data is coming from the pch.

Basically it looks like you might have a duplex mismatch but you need to make a little chart of what starts the copy and what speeds your seeing in which directions to really know this. with some luck, it's a bad cable probably connected to the pch, but a full chart of the pch, your pc and the storage device will help pinpoint which ones may have a bad cable, it may not be the pch. With some luck if it's not a cable, you can't force the pch into a certain duplex mode so hopefully it's the storage device and that should have a half/full setting you can tweak..

It's not cut and dry and harder to find when your switch/router is unmanaged because it offers less options to repair and find

Ok more details. Bot the speeds quoted are from an ftp session. Both transfers initiated from the pc to the C300. i have never used the C300 to start any transfers.

[accident]

the 2 different transfer speeds are to the same c300?

[icetrayz]

(03-05-2012 07:10 AM)accident Wrote:  the 2 different transfer speeds are to the same c300?

Sorry didn't realize I had to go back and retell the original story in my reply.

The first set of numbers is data going to the C300 and the 2nd set is coming from it. Both are initiated from the PC.

[accident]

good luck.. you obviously don't want help

[icetrayz]

(03-05-2012 07:18 AM)accident Wrote:  good luck.. you obviously don't want help

I do want help. As you can see I havn't posted a lot which is why i tried to detail my original post as good as I could. Not sure if you people helping out read the threads like a blog or not, so i try not to repeat myself.

Sorry if my last post sounded sarcastic. It wasn't intended to. Was legitimate, if you need information i will provide it. From what i have read it seems that the threads become more of a chat??

[chris57]

If you want to criticize the forum or other others that are trying to help you please don't bother. We don't need people like that on this forum.

This is the NMT Owners Forum, for NMT Owners to help each other. It is not the 'I demand everyone stops whatever they are doing, concentrate really hard to see if they can read my mind, and then produce exactly what I want' forum.

Change your attitude and remember that we are simply here giving our time and effort to try to make your enjoyment of the player be better than you yourself can manage.

[Willem53]

I think he has a point....

quote OP 1st post: However now I can't ftp files to my C300 at speeds any faster then 10-11mb/s. I can transfer from the C300 at 20-21 Mb/s.

so writing to the C300 is 50% slower than reading... the question is...is this caused by the C300 or the PC...

Anyone?

[icetrayz]

Wow, this got blown well out of proportion. I never criticized anyone and don't have an attitude. Like I mentioned my response was simply realizing that posts need to provide the info each time, which wasn't my understanding of the concept of these threads. Tell me if this is wrong??

Willem, although I appreciate your reponse towards trying to get my issue resolved I'm not out to make a point. I'm not trying to prove someone wrong, although Chris57 thats a pretty quick jump to conclusion, condesending remark towards me, which completely contradicts your own message on how to treat people. If you really go back and read the posts I don't feel that my post was wrong. Sure, in hindsight I could have copy and pasted what my original problem was. Had I known that it would cause so much tension thats what i would have done.

I greatly apreciate the time and knowledge of this group, which is why i've used this for support all the back to my A110. I help out where I can too, although I don't have the expertise of ohers in this forum, nor do I pretend to.

In any event I don't expect this thread to ever be completed with an answer.

[accident]

Quote:Like I mentioned my response was simply realizing that posts need to provide the info each time, which wasn't my understanding of the concept of these threads.

Your asking for help on a problem that may have nothing to do with the pch. This is an international forum so there is language barriers, use of online translators and it's not uncommon that what you think you posted is not how it's reading back to everyone who might be trying to help. You also mention 3 devices and I took more than a couple seconds to explain how more data will help factor out if it's a generally networking problem in your house.

Your the one that needs help, so if someone trying to help you needs more information to get you a solution it would be wise to work with them instead of throwing punches because you think it's a waste of your time. That makes it a waste of my time and my setup still works even if yours doesn't.

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(03-05-2012 12:38 PM)Willem53 Wrote:  so writing to the C300 is 50% slower than reading... the question is...is this caused by the C300 or the PC...

it may be the router or nas also. It's common in networking when you see the symptom of slower in 1 direction that it's a networking problem somewhere (or many places) in the network. It may not even be the devices showing this problem.

looking for errors on all devices and network ports is a good start. it's probably a bad cable or duplex mismatch IF this problem is networking. but this symptom is so common in the networking world it's the best first place to look.

We're also dealing with the pch and there's a lot of unknowns here. Is there a read buffer on the drive? is there a write buffer? is the pc settings possibly thrrotting it down? is the ftp server settings? Is it a green drive in a slow spin mode? is there enough of a buffer on the read that the drive keeps spinning down in speed but not enough buffer to get the drive back to speed before you run out of buffered data and you need to adjust the green settings to be less aggressive. are you watching a video at the same time and the bus is already half in use? Is it maxing the cpu with torrents/usenet and your expecting full speed copying your new download off? is the pc also busy with a large transfer to another device? is this a copy from the pch to the pc or from the pch to the pc to the nas and it's the nas??

There's a lot to test here.

[icetrayz]

Again, I am at a loss as to why you are being so confrontational. I've never blamed you for anything, I've never insulted anyone or criticized anyone. Whats going on here? I'm not withholding information and as previously said will provide the information requested and have.

I've pretty much narrowed this problem down to the PCH, wether or not it is specifically the PCH, I don't know. I get half the speed when sending data to th c300 that i do when receiving from it. My PC is connected to a router/modem, which is connected toa gigabit switch with my PCH plugged into that. From the lights on the switch it says my PCH is connected at gigabit.

My router is reporting my PC and my PCH are connected to it at 1000Mbps full duplex.

Testing using FTP with a 14gb file (star wars Ep4 if you must know ).

The best speeds I am getting now over FTP from PC to PCH are 10-11mb/s and receive at 21-22Mb/s

To the NAS on my network I can send with ftp from my PC at 23-24mb/s and receive at 40-41 Mb/s

Are there any other tests i should run? I have never initiated a transfer using the PCH. Not sure how to do that.

PC is doing nothng else. the drive reading/writing on the PC is a Corair Force GT SSD. CPU usage hardly changes from 0 during transfer.

[Willem53]

Have a look at this thread http://www.networkedmediatank.com/showth...light=RWIN

[icetrayz]

Have tried that a number of times with different values, never seems to go any higher. i can drop it to slower speeds, but the numbers reported are the highest i can achieve.