Slow network

Similar Questions

• E3000 slow network

  Hey all,.

  I just upgraded to an E3000 to a WRT54G and I'm having some trouble with the speed of the network.

  I have no special settings and even tried to restore the default settings and upgrade to the latest firmware, nothing done.

  Time, I notice that the biggest success is when transferring files locally on the network (WiFi and LAN).

  Let me see that I don't know the difference between MB/s & Mb/s and other...

  I have Comcast 20 MB/s down, 1.5 MB/s up (just an info, the main issue is transfer the)

  With the default settings, my laptop (ASUS N82JQ, Atheros AR9285 Wireless Network Adapter), connects to the router to only 65 MB/s (with full signal).

  Download seems to be more decent ~600KB/s (file transfer wireless-n laptop desktop gigabit).

  Download seems to be limited to ~150KB/s (copy of files from the wired desktop to the portable wireless n gigabit).

  These speeds are horrible! ~ 5 hours of 3GB of data transfer!

  One of my laptops had a card that has been able to the 2.4 & 5 Ghz and I was previously receiving ~2000-5000KB/s transfers (2-5 MB/s) with this router (but I had to do a system restore on it and reset the router). My ASUS laptop seems to work only with 2.4 Ghz however. If I change the 2.4Gh the wireless settings of the router to "Auto (20 MHz or 40 MHz)" the laptop connects at 150 MB/s, but the speeds are the same slow as speeds above.

  Desperately need help.

  Dave

  OMG... I found an answer, when I was reading this thread:

  http://www.ads-links.com/index.php/how-to-fix-Windows-Vista-slow-network-transfer.html

  I had already eliminated the possibilities of the Antivirus/Firewall... But still had the problem.
  I saw the post of "alex on September 4, 2007" talk to disable IPv6 and QoS on the properties of the adapter...

  I tried turning off on my connection LAN Gigabit and Whoosh! I'm ~54MB/s! Much, much, much better than 150 KB/s.

  I turned QoS on the LAN adapter and I always get good speeds... So, that tells me there is something to do with IPv6 between the router and the computers that something is not love.

  I have yet to reset the settings of my WiFi (I did a firmware update and factory default), but it is expected... I will report my findings!

  Edit: Disabled IPv6 on the adapter wireless and re-tested... and guess what 9 + MB/s! YES!

  So, the next question is, why don't the router plays well with computers that have IPv6 installed/activated?

• Hyper-V slow network

  Dell PowerEdge T420, Windows Server 2008 R2 with Hyper-V installed and one configuration of virtual machine 2008 R2 in the Hyper-V environment. Two network cards on the T420 are connected to the same Gigabit switch, one for the use of the physical machine and the other for the virtual network.

  The only thing that is made in the virtual machine of desktop Services remotely, then end users into running a program of medical records that accesses a database on completely separate server. The physical server just Hyper-V, a domain controller and DNS.

  With no activity, ping'ing the prompt of the physical machine or vice versa or a separate database of the guest PC server, we have less than 1 ms response time. However, if there is no activity in the guest OS, ping times vary drastically - between 1 and ms 200 ms.

  I have different power cuts disabled virtual network adapters properties, but this does not seem to make a difference. Looking at the monitor of resources on the VMS, there is generally less than 5% of the CPU and 10 percent of the memory used, and the network traffic when the application is running is less than 100 Kbps (usually less than 50 Kbps).

  On the physical server, the CPU traffic & network are basically the same as the virtual machine, with 80 percent of the memory used (since it is all attributed to Hyper-V).

  Any thoughts on how to solve the slow networking?

  Thanks in advance!

  The solution to the problem is revealed to be...

  Broadcom NICs in Dell servers have a "Tails of Virtual Machine" which is by default enabled setting. Once disabled, the guest operating system has the same network as the physical machine speed.

• Workstation 9 - slow network performance between the host and guest

  I am running windows 8 on the host and installed by 9 trial. Then installed windows 8.1 as a comment system.

  I'm a slow, very slow network between the two.

  If I send files to and from the computer with another guest, transfers are normal, but if I try the same files between the host and the guest, they are really slow.

  I use a bridge connection.

  I read elseware to disable the following on the guest card:

  Large Send Offload v2 (IPv4)

  Large Send Offload v2 (IPv6)

  But that did not help.

  Thoughts?

  Maybe then try Hyper-v, it help you better.

  report this incident to Vmware if you can

  Concerning

• Very slow network performance

  I have a Dell T610 running ESXi 4 with a pair of built in maps network gigabit Broadcom BCM 5709, to which I've also added a gigabit dual port Intel 82576 NIC they are all plug a Cisco 3560 24 ports switch. There are a couple of virtual machines on this computer and there was near zero, a network, or activity of the CPU during the following tests as they were made during off-peak hours.

  I noticed a few updates takes a long time to download and, after completed and restarting the virtual machines, I decided to perform a speed test that indicates the very slow network performance. But the performance is slower on one NETWORK card to another. Reduce the ports available to virtual machines on a single NETWORK card, that's what I got.

  Using Speedtest.net as a gauge running on a dedicated XP Guest:

  The Broadcom and Intel befriended 5Mbps showed and sometimes 10 Mbps.

  Only Broadcom showed between 13-18Mbps from one trial to another.

  Intel showed only 4-5 Mbps. never more than 5 Mbps!

  Physical work stations connected to the same switch showed 45Mbps repeatedly!

  All ports were originally configured as auto negotiate. I tried locking time ESXi and the Cisco switch to 1 GB Full duplex with no significant difference in the overall performance.

  Has anyone seen this? Have you found a solution?

  I got a similar promblem - found that the VM - NIC has been set at the 'flexible' type and VM-Ware tools were not properly installed.

  As I was not able to install (linux, no gcc), I've removed the NETWORK card and put in again as an adapter 'e1000 '. From here, I had transferrates as expected ;-)

  I hope this helps...

• Slow network preferences

  Hello

  For some reason any, whenever I click on the icon WiFi at the top right that it takes a good 2-3 seconds for the menu to appear which shows the currently connected network, etc... and then when I select "Open Network Preferences" on the bottom of this menu it takes forever for interfaces to appear. For 20-30 seconds, it appears as below:

  

  Finally, all interfaces appear but it is really slow to change any settings here. It's the same if I go into the system preferences-> network. All other components are preferably fast and the rest of the operating system is fast and behave normally. It started when I upgraded to 10.11.5.

  This is what appears in the console until the interfaces to load:

  

  Network engineer, it makes me a little crazy.

  Any suggestions?

  Go to System Preferences > network > open the lock by entering the username and password > click on the gear icon > choose make active service > set the order of service

• AT200 - slow network after update 4.0.3

  Hi all

  Since the last update 4.0.3 my Wifi network is very slow.
  Hard Reset solves the problem.

  I try Fixer Wifi from the Android Market application, is better but reseting Wiff network every 5 minutes.

  It seems that the problem is also known on other hardware platforms.

  Anyone have a solution?

  Thank you.

  Stcren

  What I've read on other platforms was mainly either a factory reset or forget/remove the Wifi configuration and returning it. Like you did a hard reset should not be more useful.

  Have you checked your WiFi connection also with other access-points/routers?

  My basic proposals:

  (a) improve the performance of your router in the 2, 4 GHz. Then search for channels already occupied (from routers in the neighborhood) and move to a free channel in the configuration of the router.

  (b) If you have some basics of TCP/IP networks and then manually set your IP address in the Tablet Wifi-settings. This should at least speed up the reconnection (required DHCP negotiations) and maybe keep the connections don't break as the local ip address does not change.

• OfficeJet 8720, scan to folder very slow network. any tips?

  I just upgraded to Officejet pro 8600 to 8720.

  The 8720 prints well, but it is incredibly slow for scanning.   Can't believe how slow it is compared to other HP products I've used.

  Is there advice, suggestions on how to speed up scanning?  Or do I need to buy a more expensive model for a faster sweep.

  Please notify.  Thank you.

  Hi @atomarchio,

  I was check in this issue and found a number of things that can help.

  Replace with the IP address of the computer that hosts the folder targets of network for the name of this computer.  For example, if the network path is listed as \\david\8670scans, change it to read \\192.168.1.102\8670scans.

  Turn on the printer and try again.

  Check out this post from @djjaeger82, Officejet Pro 8720 - slow Scan to network folder.

  Let me know how make you out. Thank you!

• W510: Initialization of the slow network

  Hello

  I had a problem with my W510 that annoyed me because I have and it's the network always seems to take about 60 seconds to connect when I start.

  Little matter if it's my connection Wireless at home or in the office, nor does it matter if it's Wired, it's the same slow behavior.

  My other devices have no problem connecting, and it's a real pain waiting around for her, especially when with my previous laptop, I didn't even think about it.

  I contacted the support, but he did direct me in the path of diagnoses that say there is nothing wrong.

  Anyone else have experiences similar with their W510 or better yet, to know how to fix it?

  Concerning

  Andy Wu

  It turns out that it was a software problem.

  I have uninstall everything that touches the network remotely and it wasn't until I uninstalled VMWare Workstation Network began to respond more quickly, as it should.

  Hope that helps someone else who falls on the same issue.

  Concerning

  Andy Wu

• Slow network discovery

  When I click on the network icon, the discovery process is very slow - 10 times slower than XP - why?

  Win7 x 64 ultimate

  I agree with Jimnametaken. Since we updated our organizations to Win7 desktop computers, network of navigation is very slow. We have a few applications rely on shared network folders. Since Win 7 these apllicaions fault of left and right. Only way I got to work is by deploying a group policy to delay the start of computer/logon to desktop computers will have enough time to discover the network. It does solve some of my problems. Network slow still hoist/little life that everyone difficult navigation. Most end users think that it's our incompetancy, but it's really from Microsoft.

• x 220 slow network performance

  I have a x 220 windows 7 32 bit and with cable and wireless I get extremely slow performance. The chip is an Intel 81579LM and copy files over the network via the cable network for example I get only 800 Kbps. If I plug my desktop PC into the same switch I get something much faster. So the problem is definitely on the 220 x. I tried various driver updates, but nothing seems to fix. I ran perfmon and CPU and disk read/write queues are not a problem. Where should I go from here?

  Roger

  roger456 wrote:

  If I plug my desktop PC into the same switch I get something much faster

  .

  You use the same Ethernet cable between the device and the same port on the switch for the two tests?

  If this is not the case, try to do the test with the help of two Ethernet cables between the devices and the same port of the switch... This would pretty quickly sort if you have an Ethernet wiring related issue - it's pretty common root cause of the problem you describe.

  See you soon,.

  Bill

• Very slow network with 10 Workstation and Windows 8 / 8.1 Windows

  Hello

  I come to you because I have a problem with the network with 10 Workstation and Windows 8 / 8.1

  In fact, if I copy files from or to a virtual machine with my host of Windows 8 by sharing Windows (SMB / CIFS), it is very very slow and unusable.

  Example: My host is a Windows 8 x 64 and Windows 8 x 64 host: transfer speed is about 100 or 200 KB/s and often 0 KB/s (transfer seems to be paused).

  With a guest Windows 8.1, same problem.

  After many tests, I also tried with Windows PE 5 (same kernel as Windows 8.1): same problem, unusable.

  But, miracle, if I use "Utility MSI - X OFF" Intel, I reboot and the problem disappears.

  There:https://downloadcenter.intel.com/Detail_Desc.aspx?lang=eng & DwnldID = 18946

  Someone in this community, said that it have the same problem and a workaround solution was not to use Intel e1000e but e1000 then: I must admit, it works.

  With e1000, speed is around 30 to 60 MB/s and stable.

  But, by default, 10 Workstation e1000e value when I create a new VM Windows 8.1, so it's a problem... Do not manually change for each new virtual machine and explain this to my students.

  Please, you can reproduce this bug and fix it?

  Thank you very much.

  New workstation 10.0.2 fixed this bug. Perfect.

• In ESXi 5 very slow network performance

  We have recently updated one of our servers to ESXi 4.1 to 5. It's a Dell PowerEdge T300 with 24 GB of RAM. It used to run very fast, but after the network upgrade is very slow. We have another server that is still running ESXi 4.1 which runs very fast.

  I noticed the slowness of the network in Windows 7 and Windows 2008 R2 systems. When I copy a file from the ESXi 5 hosted VM to a physical machine on our network, I get between 2 to 4 Mbps. When I copy the ESXi 4.1 hosted VMS on the same physical machine, I get 80Mbps.

  I tried to disable TCP unloading on the physical machine and virtual (and both) computers with no improvement.

  I also performed a capture of the WireShark packages on one of the virtual machines Win 7. I noticed one interesting thing is that there was a lot of duplicate ACK packets when you transfer a file on SMB. I didn't know where to go to from there.

  If anyone has any suggestions, I would appreciate it.

  Check the BIOS of the server ESXI 5 and see if this physical NETWORK card sharing resource IRQ with another device and change it if it is.

  -KjB

• vSphere Home Lab: very slow network speed, I'm desperate

  Hello

  After many trials that I have finally found the right hardware build my vsphere home laboratory.

  This is my setup:

  ESXi1

  ASUS P6T Deluxe V2

  I7 920

  24 GB OF DDR3 MEMORY

  2 x Intel Pro 1000 GT Desktop Ethernet adapter

  2 ESXi

  i5-2500

  16 GB OF DDR3 MEMORY

  1 x Intel Pro 1000 GT EthernetDesktop adapter

  NAS

  ASUS P7H55-M

  Intel Core i3-540

  Windows Server 2008 R2 with Starwind iSCSI

  Realtek Gigabit Ethernet

  I have a Netgear GS108 where I plugged all the ethernet cables over my ADSL Modem, a Linksys WAG320N

  Everything is OK apart I have a speed very very slow in the network; for example ISO 2k8r2 server transfer I take 30 minutes

  After many trials, I decided to start from scratch, I just powered on my ESXi2 machine and reinstalled ESXi 4.1U1 from scratch and I installed the Client vSphere for my Client PC which have a Gigabit Ethernet card and is also attached to the switch Gigabit however, speed is still the same, 2/3 MB / s.

  The strange thing is that also the same speed very slow, I created a Server 2008 VM and installed iperf to landmark of network and I get about 600 / 700 Mbps, so I really don't know what I can do.

  I replaced the ethernet cables, also tried to connect the cables directly to the modem and also I tried with another switch, but the result is always the same.

  He is now a cable or switch problem because I tried to create an iSCSI drive and transferred a file of 10 GB of my Client PC to the iSCSI disk and I get about 120 MB/sec so is full Gigabit network speed.

  Also, I installed FileZilla FTP Server on the ISCSI server and tried to download and upload a file of 10 GB and the speed is never 115 / 120 MB/s.

  Really, I don't know what I do that, I'm really desperate.

  Thank you very much for your help.

  Routers are NOT created equal.  There is a business reason switches cost $10,000 - $20,0000 dollars.

  Netgear router / switch is just a very BASIC.  It's not classy company.  That's your problem.  Get a better switch that you don't need to spend $10,000 but probably a few hundred... a GOOD show for home switch...

• Slow network performance for non - vm with ESXi 4.0 machines

  I have ESXi 4.0 running on an IBM x 3850 M2 with 2 6-core Xeon, 64 GB RAM, 1.2 to SAS RAID 0 and 2 Gbit NIC connected to the 100 MB switch.  Two physical network cards is configured to use a vSwitch.  The management network use vmnic0 with vmnic1 as before.  The virtual computer network use vmnic1 with vmnic0 as before.

  I created a half-dozen VMs with VMware Tools installed, a certain Win XP, Win2003 Server.  Access to the network between the virtual machines is ok (_{270Mbits/s), but access to external guests is very slow (}2.5Mbits / s).  Here's the output of iperf, first between two virtual machines (tnealxpvm and rptkerbtest1), and then between a virtual machine and an external host (tnealxp03).  I guess the network access VM-on-VM is probably in memory and touch even the network hardware?

  C:\tneal & gt; iperf.exe w 128 k rptkerbtest1 - c

  -

  ---

  Client that connects to rptkerbtest1, port TCP 5001

  TCP window size: 128 KB

  -

  ---

  9.42.124.124 local port 1159 connected with 9.42.124.75 port 5001

  Bandwidth transfer interval

  0, 0 - dry 10.0 321 MB 269 Mbit/s

  C:\tneal & gt; iperf.exe w 128 k tnealxp03 - c

  -

  ---

  Client that connects to tnealxp03, port TCP 5001

  TCP window size: 128 KB

  -

  ---

  9.42.124.124 local port connected 1336 with 9.37.207.29 port 5001

  Bandwidth transfer interval

  0, 0-11, 4 s 3.35 MB 2.47 Mbps

  In the other direction (external host to VM) network speed is even worse.

  D:\tneal\downloads & gt; iperf.exe w 128 k rptkerbtest1 - c

  -

  ---

  Client that connects to rptkerbtest1, port TCP 5001

  TCP window size: 128 KB

  -

  ---

  9.37.207.29 local port 18053 connected with 9.42.124.75 port 5001

  Bandwidth transfer interval

  0,0 to 13.7 sec 984 kb 587 Kbits/sec

  I also run iperf on the hypervisor to try to determine if the problem is with the installation of the physical network.   Here, the speed is good/expected with a 100Mb connection.

  / tmp/Eddy #. / iperf w 128 k - c 9.37.207.29

  -

  ---

  Client that connects to 9.37.207.29, port TCP 5001

  TCP window size: 129 KB (WARNING: requested 128 KByte)

  -

  ---

  9.42.126.252 local port 53063 connected with 9.37.207.29 port 5001

  Bandwidth transfer interval

  0, 0 - dry 10.0 112 MB 94.2 Mbps

  Suggestions for changes to configuration or other tests would be greatly appreciated!

  -tom

  Hello

  No reason to hardcode them guests at 100 Mbps.  Configure your guests to autodetect speed connection and duplex.  It's ok if your report speed/duplex of link guests that are different from your physical network.

  Try to configure your NIC Host (ESX) autodetect. Check that they autodetect to 100/Full.  Some older switches have problems with autodetecting link speed/duplex, but I prefer to configure NIC gear to detect automatically if possible.