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Author Topic: Slow ftp upload speed  (Read 15500 times)

Hecro

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Slow ftp upload speed
« on: August 26, 2012, 12:23:59 AM »

I bought this router a month ago and I have been experiencing extreme drop in upload speed through the FTP protocol.
I have a 100/100mbit fiber connection and I have been testing the upload speed to a nearby TDC (biggest ISP in Denmark) test FTP server (ftptest1.tele.dk)

This is a speedtest of my connection:
http://www.speedtest.net/result/2140875164.png

I am cabled directly to the router and I am experiencing the exact same problem with my NAS server when customers are trying to download their pictures from it (I am a photographer by profession).

I have been toying around with the settings on the router and I cannot get it over 200-300 kb/s and then it often times out after a few mb's. I can download stable with 11mb/s both from http and ftp protocol - no problem there. It's just the upload over ftp protocol that "blows".

What shall I do?
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FurryNutz

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Re: Slow ftp upload speed
« Reply #1 on: August 26, 2012, 09:39:38 AM »

Traffic Shapping and QOS enabled? Try w both OFF.
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Hecro

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Re: Slow ftp upload speed
« Reply #2 on: August 26, 2012, 10:09:40 AM »

Already off :/
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Hecro

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Re: Slow ftp upload speed
« Reply #3 on: August 26, 2012, 10:13:17 AM »

The weird thing is that the first ftp upload I do after a router reboot I can run at the full speed 11-12mb/s, but after that it's maximum around the 200 kb/s for additional uploads.
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FurryNutz

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Re: Slow ftp upload speed
« Reply #4 on: August 26, 2012, 10:43:32 AM »

What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?

Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.

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Hecro

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Re: Slow ftp upload speed
« Reply #5 on: August 26, 2012, 10:50:31 AM »

What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?

Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.



It's a fiberconnection, not cable or DSL.
Standalone fibermodem (Comega FTTH CPE gateway)

Im testing it on an OSX mountain lion, Windows Server 2008 R2, Windows 7 and the linux system on the NAS. Same results. If I connect the OSX directly to the fiber modem there is no problem. If I use my old router I can get the full speed, but it's unfortunately broken in the wireless part.
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FurryNutz

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Re: Slow ftp upload speed
« Reply #6 on: August 26, 2012, 10:58:40 AM »

I would ask your ISP if there is any specialized MTU settings that need to be tried. Most cable services are 1500, DSL is usually 1492-1472. I have seen some fiber issues with running external routers. I think there has been some information on DSLreports.com as well. I might check there as well.
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Hecro

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Re: Slow ftp upload speed
« Reply #7 on: August 26, 2012, 11:02:00 AM »

Okay, thanks for the pointers - I will reply if I solve the issue :)
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FurryNutz

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Re: Slow ftp upload speed
« Reply #8 on: August 26, 2012, 11:05:47 AM »

Keep us posted.
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Hecro

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Re: Slow ftp upload speed
« Reply #9 on: August 27, 2012, 02:23:29 AM »

So my ISP don't know what MTU is, but I will receive an email when they find out :)
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Hecro

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Re: Slow ftp upload speed
« Reply #10 on: August 29, 2012, 12:18:03 PM »

My problem is still unresolved. I can't get why I can upload with full speed right after a router reboot. The next FTP upload I do is limited to around 150kb/s and a very unstable speed.

There must be someone that can help me figure this out.
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FurryNutz

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Re: Slow ftp upload speed
« Reply #11 on: August 29, 2012, 12:29:53 PM »

What FTP program are you using?
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Hecro

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Re: Slow ftp upload speed
« Reply #12 on: August 29, 2012, 09:44:39 PM »

FilleZilla, FlashFXP, CyberDuck & Transmit.
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FurryNutz

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Re: Slow ftp upload speed
« Reply #13 on: August 30, 2012, 12:44:21 PM »

Can only think of something on the PC side maybe.
I would turn off everything, security SW, wired and wireless devices.
Use only one wired PC to the back of the router.
Ensure your FTP programs are set up and configured for speed or xfer as fast as possible. Might try other settings as well.

Might see if other end of FTP server is slowing you down.
I have been told that other DLink devices have seen this, DNS items.
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Hecro

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Re: Slow ftp upload speed
« Reply #14 on: August 31, 2012, 10:58:14 AM »

Tried 3 different computers with different OS. Only one computer wired at a time.
I have tested on over 10 different FTP servers with different ISP's.

I think I will just return the router and go with a Cisco insted.
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