Slow lan

in gigabit lan pc runs over 150Mbs and iMac 40Mbs upload. What is the problem?

Ihttp://www.shabangs.net/osx/speed-up-macos-x-file-transferring-over-network/
In the link above I found the description of the problem and a possible solution.
I am new to mac. The iMac 27 "OSX 10.9 Mavericks 2014 is within a corporate network lan(cisco devices) and pc´s function as a shot. Macs have a very slow download speed. Gigabit Nic, UTP6 ... the last of the last.

Similar Messages

Time Capsule with an Airport Extreme bridge resulted in slow LAN speeds

Wondering if other people are seeing this. I am unsure if this was a result of upgrading both my TC and AEx to 7.6, but my LAN speeds had suffered in this configuration.
1. Comcast cable modem connected to the WAN port on my TC.
2. Connected an ethernet cat6 cable from the TC to my Airport Extreme, which was configured as a bridge.
3. My desktop was connected to the Airport Extreme.
4. When doing file transfers within the LAN or general internet usuage, my network speeds were extremely low.
5. Disconnected the cat6 cable from the TC and plugged that directly to my desktop.
6. Network speed jumps up by a factor of 5. LAN file transfers and internet usuage has returned to what I had expected.
Is there a known issue where a bridged AEx conncted to another Airport "main" device will result in all machines connected via the AEx to have slow LAN speeds?
I didn't see this issue months ago. I did less than 2 months ago upgrade our machines to the 7.6 firmware, but after experiencing some hiccups on the network, reverted back to 7.5.2. However, the slow LAN speeds haven't gone away when the two airport machines are connected to each other.
Any insight or advise is appreciated.

By now, millions of users have updated to 7.6 and I cannot recall seeing a post similar to yours on this forum.
As far as a "known issue", you would need to contact Apple regarding that.
Suggest that you have the AirPort checked out at an Apple store if you have one near you.

Very slow LAN speed

I have a "MI424WR" router. Various pages say it has speeds up to 12 mebabyte/second transfer rate, but I am only getting no more then 3mb/s ever.
I have 1 desktop that is wired and 1 laptop that uses wireless
Help is apprecitated

Since you refer to slow LAN speeds, I assume you're referring to a transfer between the wired desktop PC and the wireless laptop.
Any transfer between the two is going to be constrained by the slowest component, which is your wireless connection.
You said you're getting "Mob/s". I'm not clear if you're referring to megabits or megabytes.
If that number is megabytes, that's about average for a wireless-G connections.
MOB/sec (note the caps) * 8 bits/byte = 24Mbps
If you meant 3Mbps, then you're probably dealing with a wireless interference issue and should look at the usual wireless troubleshooting issues, such as changing the channel, eliminating sources of interference, etc.

New to MacBook - slow LAN file transfer problem

My new MacBook is painfully slow when wifi-ing to my house LAN.
I turned in my old G4 iBook for a MacBook (2GHz C2D, 2GB, 10.4.9, all updates). I have a LAN that consists of a wired 1G Ethernet backbone (a Mini and a Powermac G5 are wired in) and a Snow AEB that provides 802.11g wifi access to the LAN. The wired LAN connects to a D-Link GB Ethernet switch so the wired systems can exchange files fast. The switch connects to a D-Link EBR2310 router that connects to a cable modem to ComCast. The router has the latest firmware (1.05, it's an 'A' version router).
The Mini, G5, and MB are static IPs on the LAN. The D-Link router passes out DHCP addresses >100, with addresses <101 reserved for static LAN IPs. I use static IPs for network reliability when recovering from power outages and other unforeseen glitches. The LAN has worked very well in this configuration, with fast file transfers among machines and good stability.
With my old 802.11g G4 iBook, I was able to watch DVDs that are stored on an external FW drive connected to the Mini. No stalls, no pauses, no dropouts - MenuMeters showed an average throughput of about 700KBytes/sec on the iBook when viewing a DVD. I used both VLC and DVD Player with good results.
With my new MacBook, I can't view my DVD files. 802.11g network transfer rates to the MB (indicated by MenuMeters and by Activity Monitor) vary rapidly from a high of about 1.1 MBytes/sec to 20 KBytes/sec. Movies stall, skip, etc.
Simple file copies from one system to another are also much slower with the MacBook - an average of ~100KBytes/sec vs. ~ 1.5 MBytes/sec with my old iBook. In short, the MacBook is dog-slow in file transfers from the other machines compared with my old iBook when using the wifi connection, with no change to the network infrastructure in going from the old laptop to the new. I would like to fix this.
My AEB is set up in bridge mode (simple access point) with WPA2 security. All three Macs are completely current with latest updates, as is the Snow AEB. The MB has 4 bars of signal strength. Slow file transfer problem does not change when moving the MB to or from the AEB.
Curiously, when I download a large file (like the Intel 10.4.9 combo update), the MB shows a steady ~800KBytes/sec download speed, with none of the speed variation it shows with file transfers from either the Mini or the G5. File transfers to/from the MB to either of the other Macs are very slow.
Both the Mini and the G5 have Airport cards: when I switch them from wired Ethernet LAN to wifi LAN, they transfer files between each other at ~ 2MBytes/sec - about what you'd expect from an 802.11g protocol. So the slow file transfer doesn't seem to be due to the AEB, it seems to be specific to the MacBook. When I connect the MB using its hardware Ethernet port, files transfer just as fast as the other systems.
I have tried these measures, without effect on the problem:
- power off/restart of every component in the system;
- changing the AEB to an open network mode;
- changing the MB from static IP to DHCP;
- toggling IPv6 on/off;
- running no applications other than Finder on all systems;
Activity Monitor on the MB doesn't show anything sucking up CPU cycles during file transfers. I have plenty of RAM. The only thing I've changed in the network is the swap of the iBook for the MacBook.
Can anyone suggest what else I can try to make acquisition of this nice shiny MacBook a step forward, rather than a step back? Thank you!
G5 DP 1.8, Mini CD1.83 GHz, MacBook C2D,2GHz Mac OS X (10.4.9)
G5 DP 1.8, Mini 1.83 GHz, G4 iBook Mac OS X (10.4.8)
G5 DP 1.8, Mini 1.83 GHz, G4 iBook Mac OS X (10.4.8)

Hi,
Did you want to use the Live Migrations for that?
We recommend that you configure separate dedicated networks with gigabit or faster speed for live migration traffic and cluster communication, and these networks should be separate from the network used by the management operating system, and from the network
used by the virtual machines.
For more and detail information, please refer to:
http://technet.microsoft.com/en-us/library/ff428137(WS.10).aspx
Regards.
Vivian Wang

Windows Server 2008 R2 Slow LAN Transfer (Receive)

Using Windows 7 Ultimate and Windows Server 2008 R2
Two machines, connected via 1GB 1000base-T LAN, with a 1Gb switch between... and yes, I've tried swapping cables and ports. Server has two RAID5's, a 6 platter and an 8 platter. Workstation has two RAID5's, a 3 SSD and a 4 platter. Both sides using Intel
CPU's and a RealTek 8100C chipset Gb LAN, same LAN drivers.
Using Windows Explorer to COPY a 20GB file:
Server Disk1 to Server Disk 2: >250MB/s (Server disk I/O isn't an issue).
Server Disk2 to Server Disk 1: >250MB/s (Server disk I/O isn't an issue).
Workstation Disk1 to Disk2: >150MB/s (Workstation disk I/O isn't an issue).
Workstation Disk2 to Disk1: >150MB/s (Workstation disk I/O isn't an issue).
Server Disk1 to Workstation Disk2: 91MB/s (near 100% LAN utilization).
All looks good so far:
Workstation Disk2 to Server Disk2: 25MB/s declining to 17MB/s; occasionally as low as 9MB/s.
Some of the changes listed above appeared to work for a few moments. I've seen as high as 90MB/s for a few seconds, but it declines rapidly under 30MB/s... so no fix that has lasted.
It appears there is something in Windows 7 that prevents fast transmits; or something in Windows Server 2008 that blocks fast receives. I have set the server-side receive training to disabled, normal, highlyrestricted, and experimental and the Win7 side
to off, normal, and highlyrestricted in various combinations. Again, nothing concrete to report as an improvement.
What would the MS Gurus suggest I do with NetMonitor as far as capturing something worth their time to diagnose?

I've tried disabling auto tuning on the clients with no appreciable effect. The throttling feature however appears to have had an effect - changing the setting from default 10 to 70 has slowed the transfer from 20MB/s down to about an initial 6MB/s that
has slowed even further, and is now at 3.2MB/s (3% network utilization according to Resource Monitor at both ends of the wire - WS2008R2 and W7).
Question: What does the 10 (0x0a and 70 (0x46) represent: Mbps on the LAN, or 10% and 70% reserved, or?
I'll try the "off" setting of all FF's and add to this.
In any case, having a backup server that can't be utilized due to client "entertainment media" issues is a little painful... there should be a straightforward and published method to set the network to "normal".
UPDATE:
I've tried settings of 0, 10, 70, and FFFFFFFF. 10 might have been best, but only marginally better than 70. Range of time to copy was under 7 minutes to over 8 minutes. Very small difference.
But I also tried this using Windows Explorer and a Dataset of one folder containing 12.5GB of miscellaneous folders and files - and was surprised.
- Dataset is at \\WIN7\Dx\ = = Client physical RAID5 drive D:\Dataset
On WIN7 Client: Share drive D with Everyone as Dx
On WSvr Server: Share drive D with Everyone as Dx
On WIN7 Client: Map \\WSvr\Dx to Z:
On WSvr Server: Map \\WIN7\Dx to Z:
On WIN7 Client, using Windows Explorer:
-- Copy Dataset from Local Drive D: to Network Drive Z:
-- Took about 8 minutes, with 20% network utilization.
On WSvr (2008 R2 Server), using Windows Explorer:
-- Copy Dataset from Network Drive Z: to Local Drive D:
-- Took about 3 minutes, and 70% network utilization.
Why does running the copy from the server allow better network utilization and net throughput?
UPDATE2:
I am NOT using HOMEGROUP; I have a dedicated workgroup network the client is a member of, and the server is a DC. I'll eventually try joining the client to the domain and see if that changes anything, but doubt it will so haven't taken the time yet.

Very slow lan!

Hello to all. first of all sorry for my bad english.
my configuration is:
Mac Pro 1,1
2 x xeon 2 ghz
7 gb memory
8800GT
Mac osx 10.5.8
the problem is that: my network perfomance are too bad, the lan transfer (internet traffic from router to mac pro, from mac pro to printer epson trough lan) is very slow and no linear, go like a AC (see this image: http://img194.imageshack.us/img194/4758/networkt.jpg )
when there is this problem using more than one hour to print an A4 photo
to restore and dab the problem must continually undertake a maintenance application (like onyx) and run script commands and maintenance of cleanliness of the various cache. done so, turn off and reboot.
thanks for attention. have a nice day.

the router is a Netgear ProSafe DGFV338, the Mac PRO and the printer are connect with a cable (no wi-fi). i haven't this problem when using the notebook, therefore rule out a problem to the router.
yes, i have tried to power off all component.

NMH300 Slow LAN Speed

I am using the NMH300 and find the file transfer speed very slow using Windows Explorer.
I have the following setup:
Fast Win7 x64 desktop computer with Gigabit NIC
Dlink 10/100 switch (unmanaged)
NMH300 connected directly to the Dlink 10/100 switch
Setup NMH300 with static IP and created mapped network drive in my Win7 desktop. Allowed windows file sharing in the NMH300.
Why is the file transfer speed only 6.5 or 7.0Mb/sec over the LAN when both the computer and NMH300 are directly connected with each other over a 10/100 switch?
Surely I should see speeds in excess of 60Mb/sec or more?

Yes, something is wrong.
I'm running the NMH300 on a wired gigabit network and get speeds similar, and in some cases, a little higher than the chart shown in the NMH review in Wilkins link (small net builder).
I usually get around 130 Mb/s (~16MB/s) read, and about 100 Mb/s (~13 MB/s) write. You should be seeing something similar, but your posted speeds are way too low. Could be a bad NMH or something else within the chain. You might want to start by trying to isolate the bottlenecks.

SCCM 2012 - Very slow LAN software deployments

Earlier this week I created a package containing office 2013 SP1 ready to deploy to our workstations
I have been installing the office 2013 package onto desktop computers on our LAN and it is being very slow on downloading the application from the DP.
The DP is on the same as the workstation and it appears to utilize less than 1mb of the 100mb local NIC card. I have also checked and the boundary config is set as a fast link. Has anyone come across this before?
When looking at the NIC on the DP server it is using 2% of its 1GB connection. I have also checked the distribution log and it is downloading from the local DP.

Thanks for your quick response :) That seems to be exactly the setting.
One question if you know the answer, If you define a boundary as having a slow link what happens to the traffic? Does this no longer do this slowly using BITS.
I can see this would be why this setting was set as we also have slow link sites without a DP

Very slow LAN connection on my Tecra M1

Hi all,
I use a Toshiba Tecra M1 1.6 GHz, Win XP.
I found that there is something wrong with the LAN connection. It is very slow. I takes about 5 minutes to download 1 MB. It is really time consuming if I want to download and update some software through internet.
I also have one desktop. it is a bit quite old but LAN connection is much faster than my laptop; for instance, I downloaded Windows Mediaplayer 10 - about 12 MB by using desktop and latop at the same time to compare, the desktop took 2-3 minutes while the laptop ate more than 20 minutes. I have exchanged the cable between the desktop and laptop but it did not help.
Does any one know the potential problem and solution?
Many thank.

Hello
Nick is on the right way. Who knows what runs in the background and which applications wants to access internet. I recommend you to use tool called Zone alarm. On this way you will have the whole control about applications who want to access the internet.

What is slower - lan network socket or oracle database

What is generally slower?
Data transference via socket on a network connection on a lan line or inserting data into an oracle database via an Oracle Prepared Statement with a batch size of let�s say 500?

Maybe this will clear it up: Oracle will be slightly
slower. The transactions are occuring over the
network anyway. So the rate can only be as good as
the network itself. Presumably, the additional
overhead DML imposes will make Oracle slightly slower
than raw network traffic (the prototypical example
would be reading a PDF from a BLOB and piping it back
through middleware to a client).In normal configurations, what Saish says is true, but...
Oracle can also be configured to accept database connections via inter-process communication (IPC), at least on many OSes; in this configuration, the application MUST reside on the database server itself, and the application must use Oracle's OCI driver, not the type 4 thin driver. Then, the application and Oracle use in-memory communication. Obviously, this isn't for everybody and can get very expensive when you scale out.

Life in the slow lane

I know I'm slowing down as I get older, but what about my G5 Quad? I thought by adding more ram (2gb) video renderings and such would progress at a faster pace. Haven't noticed any marked improvement. Maybe I'm not using it correctly or my settings are incorrect. the 'info' pane recognizes all 4 gigs. Is there any way to tell if it's infected with something? I 'woke' it up the other day and the activity monitor was buzzing along at a frenzy. Had Safari and Mail open during its nap. Are aliens coming in during nap time and doing bad things? Inquiring minds (and mine too) want to know...
Thanks,
John

Currently on large drive: used=230.54gb, free=235.09 small drive: used=74.21, free=223.76 Just did another disk verification. Folders: 159,740. Files: 609,533. Could this by why there's a work slowdown?
Seems slow in loading most apps; slower than usual. I use Final cut pro, After Effects, Photoshop, all the processor hungry apps. Just seems things aren't running very fast, or fast enough for the size of the box, or so I thought. When I added two more gigs of ram, things like fcp and ae didn't seem to render that much quicker, if at all. I'm thinking I either have too many files/folders, gremlins, aka aliens (they do exist, btw), or I don't have things set up right, which is certainly possible. I think I may even have two entire systems on the large drive. Had to reload everything last year sometime and in finder, looks like dups of libraries and other stuff but am not brave enough to pick which ones to dump...
I repair preferences, verify disks, run macjanitor, etc.
It's a great box. Just wish I knew more about setting up and housekeeping, which I obviously don't. I'll check out your suggestions. I need all the help I can get :}
Thanks

Slow LAN connections MacPro(new) + Mavericks

Hmm.. We run IPv6 here among all machines in addition to IPv4.
Mavericks preferentially runs most services over v6 if you have it
and Bonjour goes for a v6 address too when connecting.
New MacPro to old MacPro (2011), MacBookPro etc. Mavericks on all.
Problem
1. SMB2 file sharing was transferring at around 300Kb/s
2. JollysFastVNC was almost unsuable, screen lag was awful.
3. Transers failing due to timeouts etc.
Tests
Forced SMB2 to SMB1, no change. Tried SFTP, SSH, same.
tried switching to link local address (fe80::) with no difference.
Everything is assigned a valid routeable v6 address via router
advertisement, etc.
Fix
Forced Mavericks services such as SMB to use IPv4, now see ~100MB/s between machines on
a GigE switch with a tiny cpu load, like 4%.
Note
What's odd is that IPv6 connections to outside (ie to the net) are blazing, we
see > 57Mb/s over Comcast Business class to Google, Facebook, for example.
This all worked peachy pre Mavericks (LAN wise).
Conclusion
1. IPv6 Mavericks LAN throughput is somewhat broken.
2. Force file sharing, VNC etc to use IPv4 by using the remote sides v4 address when
connecting.

Try a factory reset of the Home hub by pressing a pin into the recess on the rear.
My advice would be to uninstall BT Desktop Help and see how you get on. You don't need Desktop Help it and while it might not be the cause of your problems it is known to cause problems on some computers. To uninstall it follow these instrutions:
Uninstalling BT Desktop Help
Go to Start
Select All programs
Select BT Desktop Help from the list, then Uninstall BT Desktop Help
Follow the onscreen wizard through to completion
Check the Task Manager Processes tab (Ctrl + Alt + Del -> Task Manager) and "End Task" if any of the following are listed:
BTHelpNotifer.exe
McciTrayApp.exe
McciServiceHost.exe
If you see McciCMService.exe, 'stop' this in Services (Control Panel -> Administrative Tools -> Services)
Open the Registry (Start -> Run -> Type "Regedit") and delete the following directories:
HKEY_LOCAL_MACHINE\SOFTWARE\Motive
HKEY_CURRENT_USER\Software\Motive
(If you have a 64-bit computer) HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Motive
Clear the Internet Explorer Cache and Cookies (Within IE -> Internet Options -> Delete…)
Delete any leftover Program Folders from Windows Explorer (Windows Key + E)

WRT-610N - Slow LAN Speeds

Is anybody else experiencing slow data transfer speeds via the linksys wrt-610n ethernet ports? I stream HD video from my pc to a seagate theater+ media hub that is connected to my television. I had a D-Link router that had 10/100 ethernet ports but recently upgraded to the wrt-610n because of it's gigabit ports and the fact that it had dual band capabilities (i have the dual band gamer adapter for another media hub one floor up).
anyway, when i had the D-Link hooked up, I was able to stream HD video perfectly via a wired network connection. both audio and video were perfect. since i hooked up the linksys, i now get perfect video for 30 minutes or so and then it starts to get choppy. after about 45 - 50 minutes it's so choppy it's almost unwatchable.
since the only thing that's changed is the router, i'm assuming that's the culprit. does that make any sense to anybody else? i can't believe it, simply because the ethernet ports on this router are "faster" than the last one ... anyways ... any help would be greatly appreciated.

porty -
I was aware that the NIC in the seagate wasn't a gigabit card. My issue is that the linksys router, for some reason, isn't transferring as fast as my older D-Link 10/100 router. It seems like there is something wrong when two wired devices try to transfer data from one to the other.
Anyways, thanks for the response ... I appreciate it.

Painfully slow LAN, but WAN is fast...?

Seems I've had this problem for as long as I can remember, but have been too lazy to do anything about it. I have a 100mbit internet connection and a fairly new wireless NetGear Router. When I download things from fast sources on the internet, for exemple the Apple.com -website/servers I get up to 6-8meg/sec. A 1GB movie takes less than 5 minutes sometimes.
However, when I then for exemple want to transfer this movie from my desktop to my laptop, or between any computers, it takes over 10 minutes or longer.
How is this possible?

Cant's actually find that info in my System Profiler for some reason. This is what it says under Airport:
Type:          AirPort
Hardware:          AirPort
BSD Device Name:          en1
IPv4 Addresses:          192.168.0.11
IPv4:
Addresses:          192.168.0.11
Configuration Method:          DHCP
Interface Name:          en1
Network Signature:          IPv4.Router=192.168.0.1;IPv4.RouterHardwareAddress=00:26:f2:XX:a4:73
Router:          192.168.0.1
Subnet Masks:          255.255.255.0
IPv6:
Configuration Method:          Automatic
DNS:
Server Addresses:          193.150.193.150, 83.255.XXX.XX
DHCP Server Responses:
Domain Name Servers:          193.150.193.150,83.255.245.11
Lease Duration (seconds):          0
DHCP Message Type:          0x05
Routers:          192.168.0.1
Server Identifier:          192.168.0.1
Subnet Mask:          255.255.255.0
Ethernet:
MAC Address:          ---------
Media Options:
Media Subtype:          Auto Select
Proxies:
Exceptions List:          *.local, 169.254/16
FTP Passive Mode:          Yes
Service Order:          3
On my router it says the following:
802.11 Mode: 11b/g/n
Bandwith: 20Mhz
Control Channel: 6 (auto)

HH5 Slow Lan Speeds

Please can some one shine some light on my situation as im stumped.
I have my desktop machine running Windows 8.1 & Serviio (Media Streaming Service) connected via CAT6 ethernet cable on gigabyte ethernet ports at the desktop and the router, proir to getting home hub 5 i was using the home hub 3 which had no issues and could play an mkv over my network at 80mbps (video file bitrate) before the video file become unstable.
Ever since the Home hub 5 has been connect i cannont not even play one at around 8mbps is there something in the hub i need to change?
This is the network speed im getting when i read/write from my pc to the HUB 5 with a USB drive attached

Unless you still have the Openreach modem, then finding a replacement router would be expensive. Even if you still have the modem, Ethernet switched are much cheaper than buying another router.
Netgear GS205-100UKS 5 Port Gigabit Ethernet 10/100/1000 Mbps Switch, typically about £13.50.
Keep the lead between the home hub an the switch fairly short, and you should get 1Gb connection.
I doubt however, that the HH5 USB speed would be as fast as the HH3. Really a proper NAS is the best solution for file sharing.
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Slow lan

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