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D-Link Wireless Routers for Home and Small Business => DIR-882 => Topic started by: Damjan on December 15, 2018, 04:59:01 AM

Title: Slow Upload speed to external drive
Post by: Damjan on December 15, 2018, 04:59:01 AM
Hi everybody,

I'am expereincing speed issue, when I upoad files to external drive.
I have drive HD My passport connected to USB 3.0. port. Download speed is more than 60MB/s but upload speed is arround 6 to 7MB/s.

I allready tried with different external drive and get similiar result. Upload speed was in both cases around 7MB/s.

Does anybody know what slows uploud speed?

Model Name: DIR-882
Hardware Version: A1
Firmware Version: 1.11

Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on December 15, 2018, 01:26:39 PM
Link>Welcome! (http://forums.dlink.com/index.php?topic=49573.0)



What is the size of this USB drive? Does it have it's own power supply?
Title: Re: Slow Upload speed to external drive
Post by: Damjan on December 15, 2018, 01:51:13 PM
Hi,

I am from Slovenia, Europa.

I tried two external drives with and without power supply, same results.

1TB, USB 2.0. own power supply.
4TB, USB .3.0. without additional power supply.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on December 16, 2018, 02:22:59 PM
Can you try a 4Tb drive with a power supply?
What happens if you test with a different PC?
Title: Re: Slow Upload speed to external drive
Post by: Damjan on December 17, 2018, 09:05:38 AM
4Tb drive doesn't have plug for additional power supply.

I tried on 2 PC's, similar results.

It is a big difference between download and upload speed.

Download speed on both discs is different but upload speed is the same on both discs regardless one is usb 2.0. and the other is 3.0. And one is plug in usb 2.0. and the other in usb 3.0.

Looks like upload limitation ??
 
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on December 17, 2018, 09:50:49 AM
Ya seems to be a problem here.
I'll pass this on to D-Link for review.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on December 17, 2018, 10:55:35 AM
I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this.
Link> Tech Support Contact Information (http://forums.dlink.com/index.php?board=635.0)
We find that phone contact has better immediate results over using email.
Let us know how it goes please.
Title: Re: Slow Upload speed to external drive
Post by: arelion on December 10, 2019, 01:51:47 AM
Hi!

I'm jumping on this.

Just bought a DIR-882 and connected a brand new externally powerted 4TB drive. No matter how I do, I can't get more than 7MB/S write speed to the drive. As the original poster mentioned, read speeds are about 60MB/s. It would take weeks just to fill drive..

Seeing the first post was over a year ago, are there any news about this or is it simply a technical limitation?

Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on December 10, 2019, 06:18:03 AM
I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this.
Link> Tech Support Contact Information (http://forums.dlink.com/index.php?board=635.0)
We find that phone contact has better immediate results over using email.
Let us know how it goes please.

Hi!

I'm jumping on this.

Just bought a DIR-882 and connected a brand new externally powerted 4TB drive. No matter how I do, I can't get more than 7MB/S write speed to the drive. As the original poster mentioned, read speeds are about 60MB/s. It would take weeks just to fill drive..

Seeing the first post was over a year ago, are there any news about this or is it simply a technical limitation?
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on January 02, 2020, 08:20:49 PM
I've had this issue for the last year. No matter what drive is plugged into the USB 3.0 port, the transfer rate is horrible.

I heard it's because of the lower amount of RAM in the router. Due to that, the transfer rate is throttled for write speed. Not sure how valid that is.

However, there are times that I get 27 mb/s but that's once in a blue moon. Non dependent on who else is on the network.
Title: Re: Slow Upload speed to external drive
Post by: ashishchandra on January 03, 2020, 02:05:22 PM
Same issue, I am using my Spare SSD and upload Speeds are Crap. 1-7Mbps max
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 04, 2020, 05:09:00 PM
Ok, I'll bite. What is the OS you guys are using when accessing the USB drive.
How are you accessing the drive? Map drive in Explorer? What path are you using?
What model drives and sizes are you using? I have a 1.5Tb USB 3.0 drive with power adapter here. NTFS if I remember correctly.
I noticed mine doesn't appear in the Network/Computer however it appears as a media device under Network/Media Devices in Windows.

Title: Re: Slow Upload speed to external drive
Post by: PitbulI on January 10, 2020, 05:29:26 PM
Windows 10. File Explorer is what I use.

Recently, the file transfer is really slow (Since last Firmware update)
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 11, 2020, 03:18:51 PM
Windows 10 Home? Pro? Enterprise edition?

Are you mapping drive thru Explorer?


Windows 10. File Explorer is what I use.

Recently, the file transfer is really slow (Since last Firmware update)
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on January 14, 2020, 09:39:11 PM
Windows 10 Home
Yes, through Explorer.

Sadly, I've had the same setup with a different manufacturers router and speeds were much higher.

Same USB 3.0 Seagate Slim BackupPlus 1.5 TB drive as well.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 15, 2020, 06:17:07 AM
How are you mapping the drive in  Explorer?
What is the format of the USB drive? NTFS?
Title: Re: Slow Upload speed to external drive
Post by: nairolf13 on January 16, 2020, 03:06:53 AM
hello

i have same problem ,  read are ok , but write block at 7Mo/s .
just a fun , during transfert if i change "QoS" write up at 9 Mo/s during 2-3 sec and return to 7Mo/s

i think i use amazon return, not a real USB3.0 port

PS: tested ftp, samba, usb 2.0, usb 3.0, wifi, ethernet ,  no change :(
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 16, 2020, 06:20:24 AM
I found out how to access it. I'll be looking into this. Overall, there seems to be problems with USB drives on the 882.

Windows 10 Home
Yes, through Explorer.

Sadly, I've had the same setup with a different manufacturers router and speeds were much higher.

Same USB 3.0 Seagate Slim BackupPlus 1.5 TB drive as well.
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on January 16, 2020, 06:31:31 AM
read are ok , but write block at 7Mo/s .
just a fun , during transfert if i change "QoS" write up at 9 Mo/s during 2-3 sec and return to 7Mo/s

Questions from D-Link engineer:

What kind of application that customer used for which router feature (DLNA, Samba or FTP)?

How did customer measure the transfer rate?

Using Wi-Fi or Ethernet? Are they the same speed?
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 16, 2020, 07:07:22 AM
Can you respond to GreenBays question please?

I've had this issue for the last year. No matter what drive is plugged into the USB 3.0 port, the transfer rate is horrible.

I heard it's because of the lower amount of RAM in the router. Due to that, the transfer rate is throttled for write speed. Not sure how valid that is.

However, there are times that I get 27 mb/s but that's once in a blue moon. Non dependent on who else is on the network.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 16, 2020, 07:07:56 AM
Can you respond to GreenBays question please?

Same issue, I am using my Spare SSD and upload Speeds are Crap. 1-7Mbps max
Title: Re: Slow Upload speed to external drive
Post by: me_iauras on January 16, 2020, 07:16:00 AM
read are ok , but write block at 7Mo/s .
just a fun , during transfert if i change "QoS" write up at 9 Mo/s during 2-3 sec and return to 7Mo/s

Questions from D-Link engineer:

What kind of application that customer used for which router feature (DLNA, Samba or FTP)?

How did customer measure the transfer rate?

Using Wi-Fi or Ethernet? Are they the same speed?

The D-Link engineer should choose his questions better ; there is no "write" speed which can be tested with DLNA as it's only read activity by a DLNA client from a DLNA server ( router in our case )
OTOH using both Samba shares and FTP access the write speed from a client to the router's USB drive is capped at ~7 MB/s most of the time ( in very occasional  situations for very brief periods of time I get ~27 MB/s with the same 2 USB HDDs I perform all tests , both of them USB powered exclusively ) ; considering the low write speed neither Eth or wireless connection makes a difference ; also the type of client ( Windows or Linux ) doesn't make any difference . In my case speed was assessed just by copying large files to and from the USB drive attached to the router .
The read speed is however satisfactory @ ~45 MB/s .
At first I assumed the poor performance was due to lower power supplied ( than the USB spec ) but as others are experiencing the same write speeds with self powered drives this is probably wrong .
Title: Re: Slow Upload speed to external drive
Post by: nairolf13 on January 17, 2020, 03:16:57 AM
i confirm "me_jauras"
tested ftp samba , wifi ethernet ....
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 17, 2020, 06:06:04 AM
Here my wired results:
http://forums.dlink.com/index.php?topic=75307.msg305324#msg305324 (http://forums.dlink.com/index.php?topic=75307.msg305324#msg305324)
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on January 17, 2020, 07:29:45 AM
Thanks furry.

I replied back to the D-Track (ticket) with everyone's information. Seems like the write speed is capping at 7MB/s and get bursts at 27MB/s. Sounds like a limitation but they will check with the vendor.

Remember the router is not going to be as powerful as a PC or dedicated NAS. The router has to process a lot and I am assuming the USB ports are low priority. The router has to inspect incoming/outgoing traffic, routing, NAT, encryption, WIFI, Ethernet, rules, etc. So it could be a lack of memory/processing power that is slowing it down.

I wonder if connecting 1 PC to the router without internet or anything else connected with smart connect off if "write" speeds would be better.  If not sounds like a chipset/firmware limitation.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 17, 2020, 08:00:24 AM
FYI, my DIR-882 was off line from the ISP modem and was just the 1 PC and the USB drive when I did my speed tests. So the system was not really under any load.
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on January 18, 2020, 10:38:20 PM
Can you respond to GreenBays question please?

I've had this issue for the last year. No matter what drive is plugged into the USB 3.0 port, the transfer rate is horrible.

I heard it's because of the lower amount of RAM in the router. Due to that, the transfer rate is throttled for write speed. Not sure how valid that is.

However, there are times that I get 27 mb/s but that's once in a blue moon. Non dependent on who else is on the network.

Samba
Looked at the File Explorer file copy screen which indicated the speeds.

WIreless, on 5 Ghz band, 20 feet away and tested close up too, I think 5 feet away.

I heard from reviews that performance issues could be traced back to the low amount of memory in the router.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 19, 2020, 10:19:29 AM
And what are your wired speeds like?
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on January 20, 2020, 06:23:13 AM
D-Link HQ has replicated the issue and have sent it to the vendor/engineers to see if this is a chip limitation or something fixable with firmware. I do not expect a response back until after Chinese new year (they are off work 1/23-1/29).
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on January 20, 2020, 01:17:35 PM
Thank you Sir.  ;)
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on February 04, 2020, 08:03:37 AM
They are still working on this issue. Due to the coronavirus the vendor/engineers (China) are not allowed back to work until Feb 10th.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on February 04, 2020, 09:23:02 AM
Thanks for the update.  ;)
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on February 13, 2020, 05:48:54 PM
Understandable.

I'm thinking that due to the memory specs on this router, the SMB data transfer rate will remain an issue.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on February 14, 2020, 06:19:04 AM
Lets see if D-Link can tune the FW up a bit.  ???
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on February 14, 2020, 11:46:44 AM
I have not heard back on this yet. They gave me til today to track the ticket but no response. I hopefully will hear something on Monday.
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on February 15, 2020, 03:38:52 PM
Any help is appreciated. I know lately the data transfer rate is quite slow. (Under 3 MB/sec)
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on February 17, 2020, 09:13:57 AM
What are wired speeds with your USB drive?
What is the Mfr and model# of the connected USB drive? USB 3.0 as well?


Can you respond to GreenBays question please?

I've had this issue for the last year. No matter what drive is plugged into the USB 3.0 port, the transfer rate is horrible.

I heard it's because of the lower amount of RAM in the router. Due to that, the transfer rate is throttled for write speed. Not sure how valid that is.

However, there are times that I get 27 mb/s but that's once in a blue moon. Non dependent on who else is on the network.

Samba
Looked at the File Explorer file copy screen which indicated the speeds.

WIreless, on 5 Ghz band, 20 feet away and tested close up too, I think 5 feet away.

I heard from reviews that performance issues could be traced back to the low amount of memory in the router.
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on February 17, 2020, 06:54:33 PM
What are wired speeds with your USB drive?
What is the Mfr and model# of the connected USB drive? USB 3.0 as well?


Can you respond to GreenBays question please?

I've had this issue for the last year. No matter what drive is plugged into the USB 3.0 port, the transfer rate is horrible.

I heard it's because of the lower amount of RAM in the router. Due to that, the transfer rate is throttled for write speed. Not sure how valid that is.

However, there are times that I get 27 mb/s but that's once in a blue moon. Non dependent on who else is on the network.

Samba
Looked at the File Explorer file copy screen which indicated the speeds.

WIreless, on 5 Ghz band, 20 feet away and tested close up too, I think 5 feet away.

I heard from reviews that performance issues could be traced back to the low amount of memory in the router.
Same speeds.

Seagate Backup Plus. USB 3.

Before pointing to the drive. I've had a Netgear, Asus and another DLink router average 27+ Mb per second on the same file transfer.

Aside from this small issue, I love that the router is incredibly stable. This is what has made me keep it.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on February 17, 2020, 08:44:09 PM
Hopefully D-Link can tune the USB up.  ::)
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on February 18, 2020, 11:47:24 AM
I got word last night the vendor (in China) for the router is still closed due to coronavirus. They might be able to go to work on Feb 21st. The engineer at D-Link (in Taiwan) is still testing and reporting to the vendor. 
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on February 18, 2020, 12:41:56 PM
Thank you for the update.  ::)
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on February 25, 2020, 08:01:43 AM
Vendor is back to work and are now looking into the root issue and does look like a memory issue. I will hear back in the next week or two if a firmware update will be released or if it is just a limitation of the hardware.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on February 25, 2020, 08:02:13 AM
Yay.  ;D
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on March 06, 2020, 06:57:06 PM
Any update by chance?
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on March 09, 2020, 06:42:27 AM
I received a response this morning:

R&D engineer now is trying to replace the minidlna module to new version. In recently testing, the samba transfer speed will raise up when the free memory is more than 25MB.

They will need more time to test and hopefully firmware can fix the issue.
Title: Re: Slow Upload speed to external drive
Post by: me_iauras on March 09, 2020, 07:04:49 AM
Then maybe could they put a resource monitor for CPU/RAM to know when the available resources are consumed/occupied  and maybe even what process are doing this (top 5 at least) ; maybe users are activating features they could live without if it would improve USB disk performance if they knew what these are .
Or just leave us figure it out by ourselves by giving us root SSH/Telnet access to our devices ( block SSH/Telnet in the firewall from the WAN interface if the reason is to not have the routers hacked )
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on March 10, 2020, 11:53:08 AM
Then maybe could they put a resource monitor for CPU/RAM to know when the available resources are consumed/occupied  and maybe even what process are doing this (top 5 at least) ; maybe users are activating features they could live without if it would improve USB disk performance if they knew what these are .
Or just leave us figure it out by ourselves by giving us root SSH/Telnet access to our devices ( block SSH/Telnet in the firewall from the WAN interface if the reason is to not have the routers hacked )

I agree!


Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on March 24, 2020, 06:19:41 AM
D-Link has confirmed this is a hardware issue and cannot be fixed via firmware unfortunately. It is a memory issue.
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on March 24, 2020, 06:27:20 AM
 :(
Title: Re: Slow Upload speed to external drive
Post by: PitbulI on March 24, 2020, 05:05:06 PM
Well, time to sell this router then.
Title: Re: Slow Upload speed to external drive
Post by: me_iauras on March 25, 2020, 02:28:35 AM
In that case I would like to see results from the DIR 2660 router which is basically the same router just with more NAND (128 MB vs 16) and more RAM (256 MB vs 128 MB) .
If that one performs well then it's indeed a resource issue ; if not then maybe software .
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on March 25, 2020, 08:16:26 AM
Testing my 2660:
Read seems to hover around upper 40MBs.
(https://i.ibb.co/hXLSQqx/USB30-SMBRead-Speed.png) (https://ibb.co/N1tMD4g)
Write seem to hover around upper 20MBs
(https://i.ibb.co/KjKG4p9/USB30-SMBWrite-Speed.png) (https://ibb.co/tMLhjTb)

Speeds were immediate and constant. Didn't see any thing near single digit MBs at all.
Title: Re: Slow Upload speed to external drive
Post by: GreenBay42 on March 25, 2020, 08:59:23 AM
My opinion (not speaking for D-Link) Remember the USB function on most routers on the market is secondary. If you need to stream high-quality movies or a lot of data, it is much better to get a NAS or connect a USB drive to a PC and run software. Expecting a router to function and perform the same as a NAS is unrealistic, especially if you have more than 10 wireless devices connected. Having a ton of rules, port forwarding, QoS enabled, etc eats up the memory and CPU.
Title: Re: Slow Upload speed to external drive
Post by: me_iauras on March 25, 2020, 10:14:00 AM
@FurryNutz 10x for the swift reply/test ; those numbers seem almost identical to what I was getting (so I'm  guessing that's about as much as the CPU can handle in terms of storage duties ) when it worked as it should , mostly right after connecting devices ( as far as I remember read performance doesn't get degraded or at least not by much ) . The real test would be to leave the USB drive/HDD connected for roughly 24 h and repeat the test .
Regarding the use of dedicated NAS devices ,  @GreenBay42 you're preaching to the choir ( QNAP 251+ owner here ) ; it would just have been nice to be able to recommend it to others who might need only basic SMB sharing features but with a decent performance (15-20 MB/s write/read sustained performance would have been more than sufficient for most people's needs ) as otherwise it's wireless performance is still top notch for the price .
Title: Re: Slow Upload speed to external drive
Post by: FurryNutz on March 25, 2020, 11:27:25 AM
I'll leave the 2660 and USB drive on today and check back tomorrow. I had turned it off so I just turned it back on. Nothing connected. I'll connect up my wired PC tomorrow again and re-test to see if anything changes.

I can't fully test the 2660 out live as I have other routers and wifi I'm currently using. This one test with with the wifi disabled. I'll check tomorrow again and run a quick test with wifi enabled to see if anything changes.