• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

LAN slow network download/upload

Joined
Mar 22, 2021
Messages
39 (0.45/day)
Hello,
so recently I have tried to share some files between the two pcs on my home network. I have set up my local shared folder and tried to upload some files onto it. So basically the connection or copying rather, was very slow and I have no idea why. My switch is gigabit, download/upload speeds are 200/50 Mb/s (just to show that cables are gigabit I know this speed shouldn't matter on LAN), UTP cables are gigabit aswell, but the copying or downloading to other pc to/from shared folder is 1Mb/s... Can anyone help me what could be the reason why?
Also the copying seems to be really unconsistent a lot of ups and downs sometimes it gets stuck at 0MB/s and it looks like it's waiting for something. Both PC's are on UTP cable.
Pictures attached:
1620668491796.png

1620668506008.png
 
Joined
Dec 16, 2012
Messages
383 (0.12/day)
Processor AMD Ryzen R7 5800x
Motherboard B550i Aorus Pro AX
Cooling ID-Cooling SE234
Memory 32Gb Patriot Viper 3600 RGB
Video Card(s) MSI RTX 3080 Ventus Trio OC
Storage Samsung 960 EVO
Display(s) Specterpro 34uw100
Case Cooler Master NR200P
Power Supply Cooler Master V750 Gold SFX
VR HMD Rift S
Software Windows 10 64bit
What device are you copying to and from? Transferring files aren't all just network releated. It will depend upon the performance of the drives and rig as well.
 
Joined
Mar 22, 2021
Messages
39 (0.45/day)
What device are you copying to and from? Transferring files aren't all just network releated. It will depend upon the performance of the drives and rig as well.
I'm copying from my PC(ryzen 5 3600x 1tb NVMe SSD) to laptop (i7 10th gen, 1 TB NVMe SSD) which speeds are not close to 1MB/s...
 
Joined
Dec 16, 2012
Messages
383 (0.12/day)
Processor AMD Ryzen R7 5800x
Motherboard B550i Aorus Pro AX
Cooling ID-Cooling SE234
Memory 32Gb Patriot Viper 3600 RGB
Video Card(s) MSI RTX 3080 Ventus Trio OC
Storage Samsung 960 EVO
Display(s) Specterpro 34uw100
Case Cooler Master NR200P
Power Supply Cooler Master V750 Gold SFX
VR HMD Rift S
Software Windows 10 64bit
Looks reasonable as you are copying lots of small files. Have you tried copying one large file?
 
Joined
Mar 22, 2021
Messages
39 (0.45/day)
Looks reasonable as you are copying lots of small files. Have you tried copying one large file?
Hm really, so it would make more sense to just take an USB and copy the files this way. No I have not tried that one yet.
 
Joined
Jul 16, 2014
Messages
5,111 (2.02/day)
Location
SE Michigan
System Name Dumbass
Processor AMD-9370BE @4.6
Motherboard ASUS SABERTOOTH 990FX R2.0 +SB950
Cooling CM Nepton 280L
Memory G.Skill Sniper 16gb DDR3 2400
Video Card(s) GreenTeam 1080 Gaming X 8GB
Storage C:\SSD (240GB), D:\Seagate (2TB), E:\Western Digital (1TB)
Display(s) 1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s) onboard (realtek?) SPKRS:Logitech Z623 200w 2.1
Power Supply Corsair HX1000i
Mouse Logitech G700s
Keyboard Logitech G910 Orion Spark
Software windows 10
Benchmark Scores https://i.imgur.com/aoz3vWY.jpg?2
MB/s is a different measurement than Mbps. Also, your ISP limits your speeds even tho speed tests show otherwise.
 
Joined
Mar 22, 2021
Messages
39 (0.45/day)
MB/s is a different measurement than Mbps. Also, your ISP limits your speeds even tho speed tests show otherwise.
1620712008386.png

Okay this is even slower isnt it? ISP speed does not matter in this case since i'm uploading to local share on local network via switch?
 
Joined
Jul 16, 2014
Messages
5,111 (2.02/day)
Location
SE Michigan
System Name Dumbass
Processor AMD-9370BE @4.6
Motherboard ASUS SABERTOOTH 990FX R2.0 +SB950
Cooling CM Nepton 280L
Memory G.Skill Sniper 16gb DDR3 2400
Video Card(s) GreenTeam 1080 Gaming X 8GB
Storage C:\SSD (240GB), D:\Seagate (2TB), E:\Western Digital (1TB)
Display(s) 1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s) onboard (realtek?) SPKRS:Logitech Z623 200w 2.1
Power Supply Corsair HX1000i
Mouse Logitech G700s
Keyboard Logitech G910 Orion Spark
Software windows 10
Benchmark Scores https://i.imgur.com/aoz3vWY.jpg?2
View attachment 199956
Okay this is even slower isnt it? ISP speed does not matter in this case since i'm uploading to local share on local network via switch?
If no files travel over the internet ( aka your ISP), than no, speeds are limited by your local network hardware, i.e LAN cards, router, etc.
 
Joined
Jan 31, 2010
Messages
4,217 (1.01/day)
Location
Gougeland (NZ)
System Name Cumquat 2021
Processor AMD RyZen R7 3700X @4400MHz 1.325V
Motherboard Asus Strix x570-F Gaming
Cooling Cryorig R1 Universal
Memory 16GB GSkill TridentZ DR4-3200 16-18-18-38 1.35V
Video Card(s) Sapphire Nitro+ OC RX6800 16GB DDR6 1980Cclk / 2000Mclk
Storage 1x Adata SX8200PRO NVMe gen3 x4 1X Samsung 860 EVO 500GB, 12TB of HDD Storage
Display(s) ViewSonic VX2457 MHD 75Hz FreeSync 1920x1080p
Case SilverStone Raven RV02B-W + 3x SS AP181 + USB3.0 upgrade
Audio Device(s) RX6800 via HDMI + Pioneer VSX-531 amp Technics 100W 5.1 Speaker set
Power Supply Enermax RevolutionXT II 750W 80+ Gold
Mouse Logitech G502 Proteus Core
Keyboard Logitech G105
Software Windows 10 X64 PRO (build 20H2)
Benchmark Scores it sucks even more less now ;)
Lots of things can affect network speed not just the interconnect between two PC's
Are they both connected at 1000Mbps
are you copying loads of small files (better to put them in a zip file first)
CPU speed
how well does you router/switch work (usually the ISP provided Modem/routers are junk)
are they wired or wirelessly connected (could be interference causing packet loss)
What antivirus are you using every time a file written it'll want to scan it

Also UTP just stands for Unshielded Twisted Pair what you need to look for is it's CAT rating ie: CAT5 CAT5e or CAT6
 
Joined
Mar 22, 2021
Messages
39 (0.45/day)
Lots of things can affect network speed not just the interconnect between two PC's
Are they both connected at 1000Mbps
are you copying loads of small files (better to put them in a zip file first)
CPU speed
how well does you router/switch work (usually the ISP provided Modem/routers are junk)
are they wired or wirelessly connected (could be interference causing packet loss)
What antivirus are you using every time a file written it'll want to scan it

Also UTP just stands for Unshielded Twisted Pair what you need to look for is it's CAT rating ie: CAT5 CAT5e or CAT6
They are both connected via UTP(cat5e) which supports gigabit speed since I can manage those speeds on internet download.
CPU speed is not a problem in this case since they are Ryzen 5 3600x and i7 10th gen...
Router is Archer C80 switch is also something from TP-link and it's gigabit.
There is no antivirus on both computers, only windows deffender.

If no files travel over the internet ( aka your ISP), than no, speeds are limited by your local network hardware, i.e LAN cards, router, etc.
Yes and I don't see a problem with my hardware that is why I'm asking if there is anything else I might need to check up. On paper everything looks like it should work a lot faster than this
 
Joined
Mar 9, 2017
Messages
34 (0.02/day)
Location
Aberdeen, UK
System Name DarkStarX
Processor Intel i7-8700K @ stock
Motherboard ASRock Z370 Extreme4
Cooling NZXT Kraken X62
Memory 32GB (4 x 8GB) Corsair Vengeance Pro RBG LED DDR4 3200MHz
Video Card(s) EVGA GeForce GTX 1070 FTW GAMING ACX 3.0
Storage Samsung 850 EVO 250GB / Samsung 850 EVO 500GB / Toshiba X300 4TB 3.5"
Display(s) BenQ EX3501R / Dell U2515H 1440p
Case NZXT S340 Elite
Audio Device(s) NI Komplete Audio 2 / PreSonus Eris E4.5s / PreSonus Eris Sub8
Power Supply Corsair RM650x
Mouse Corsair Ironclaw RGB
Keyboard Corsair K70 MK.2 MX Speed
Software Win10 Pro
Yes and I don't see a problem with my hardware that is why I'm asking if there is anything else I might need to check up
Try testing the PC to PC connection using iPerf (link - https://iperf.fr/) - it's a speed test app that runs on the LAN to test connection speeds. It's command line but it's easy enough to run, there are guides and videos online if you search for them.

The earlier poster was also correct about the number of files being a factor, you see a massively decreased performance when copying thousands of small files compared to a single large one.
 
Joined
Mar 22, 2021
Messages
39 (0.45/day)
Try testing the PC to PC connection using iPerf (link - https://iperf.fr/) - it's a speed test app that runs on the LAN to test connection speeds. It's command line but it's easy enough to run, there are guides and videos online if you search for them.

The earlier poster was also correct about the number of files being a factor, you see a massively decreased performance when copying thousands of small files compared to a single large one.
Alright will try that when I get home.
I will also try to copy a large single file rather than many small ones.
 
Joined
Mar 27, 2009
Messages
107 (0.02/day)
Location
Pittsfield, Massachusetts
System Name Gaming rig
Processor Intel i7 7700K at 4.4GHZ
Motherboard Asrock Z270M-ITX/AC
Cooling Cryorig H7
Memory Crappy 16GB memory
Video Card(s) Zotac 3060ti undervolted at .850mv
Storage WD m2 Sata SSD + WD 10TB HD
Display(s) 27 inch LG 1440p 144hz + 27 inch Lenovo Thinkvision 1440p 60hz
Case Thermaltake Versa H18
Audio Device(s) Klipsch Promedia 2.1 speakers
Power Supply EVGA 600W
Mouse Coolermaster MM711
Keyboard Steelseries Merc Stealth
When you copy tons of small files over SMB, transfer speed plummets. Microsoft explains the technical reasons for this pretty well...

During file transfer, file creation causes both high protocol overhead and high file system overhead. For large file transfers, these costs occur only one time. When a large number of small files are transferred, the cost is repetitive and causes slow transfers.

The following are technical details about this problem:

  • SMB calls a create command to request that the file be created. Some code will check whether the file exists, and then create the file. Or some variation of the create command creates the actual file.
  • Each create command generates activity on the file system.
  • After the data is written, the file is closed.
  • All some time, the process suffers from network latency and SMB server latency. This is because the SMB request is first translated to a file system command and then to the actual file system latency to complete the operation.
  • If any antivirus program is running, the transfer slows down even more. This is because the data is typically scanned one time by the packet sniffer and a second time when it is written to disk. In some scenarios, these actions are repeated thousands of time. You potentially observe speeds of less than 1 MB/s.
 
Top