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Raiko
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« on: 2010.08.20, 19:42:55 » |
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After changing from ADSL to SDSL at a remote site I now have problems transferring files. When copying a file from the remote site to my local pc the file transfer stops after a while. Have not changed any setup, software or hardware other than the router and an IP address. Sometimes it works for a couple of minutes, and other times up to 7 minutes. (I'm using the ancient Remote Services Control since it transfers files a lot faster than Netop.) Any suggestions where to start looking?
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ivan
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« Reply #1 on: 2010.08.20, 21:11:08 » |
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Hi Raiko,
Just a thought - have you tried FTP? That is how I transfer files to clients computers and, for me, the speed is governed by max speed of the ADSL line.
Another thing, have you checked the settings of the new router? I'm not too familiar with SDSL but wonder if there is a handshake problem.
ivan
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Raiko
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« Reply #2 on: 2010.08.20, 23:07:41 » |
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Hello Ivan,
No I have not tried FTP, but will have a look at that. RSM is nice in the way that I can choose how to connect, either I get the desktop of the remote pc or I can just use it's FTP capabilities.
If it is a handshake problem, I would believe that I then would have a problem connecting? As it is now I can connect just fine, both in "desktop mode" and FTP, but during transfer of file it simply stops after a few minutes.
The SDSL router is a Cisco-something which is set up by a company, by some professionals I hope :-). Anyway, it has no web interface and far too complicated for me to even think about any configuration changes.
Talking about speed; remote site has SDSL 4/4Mbit and locally I have ADSL 26/4Mbit. Max speed I have achieved when transferring a 200MB file using Netop is 95KB/sec and with RSM 132KB/sec and it's far less than I expected. I guess in theory this setting should result in max speed of 500KB/sec?
Raiko
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ivan
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« Reply #3 on: 2010.08.21, 01:03:47 » |
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Hi Raiko,
From my experience it could still be a handshake problem. The way the machine sends the chunks of the file and the way the receiving machine checks and acknowledges and requests the next chunk. If these get out of sync then the transfer stops more or less as you are seeing. At one time I had to edit the PROTOCOL.INI to allow me to transfer files to one machine in the factory - trouble is it was a long time ago and I've forgot what I did but it was a problem like yours, dropping out of transfer after a short time.
ivan
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Raiko
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« Reply #4 on: 2010.08.21, 19:37:43 » |
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Just remembered that I have installed the new Intel Gigabit driver for my onboard 82566DM-2 gigabit Network Connection. Seems to work fine so far, but I have had situations where it looks like a web page hangs for a short time when loading. Have thought that this has been a problem out on the net somewhere, but now I suspect the new driver. Has anyone had trouble with this driver? Will switch back to the old nic/driver to see if it solves the problem.
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Raiko
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« Reply #5 on: 2010.08.21, 22:30:10 » |
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Changing nic and driver didn't help at all.
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IBManners
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« Reply #6 on: 2010.08.22, 03:55:16 » |
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Hi,
Change your MTU value in x:\mptn\bin\setup.cmd down.
For ethernet it is normally 1500, for ADSL and to cover overhead it is normally lower depending on packet type used, so try something like 1452 and see how you go. If that works and if you could be bothered you can increase the value by 8 until you find a point were it stops working or starts having problems.
PPPoA is normally left at 1500 PPPoE is normally 1492 or lower
Add this to the bottom of setup.cmd or simply type it at the command prompt to test it.
ifconfig lan0 mtu 1452
Cheers
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I am the computer, it is me.
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Raiko
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« Reply #7 on: 2010.08.23, 00:20:42 » |
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Have tried various values but still the same problem. Did report the problem to those who configured the router so it will be interesting to see what they have to say tomorrow.
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