TCP/IP, the connection lost?

Similar Questions

• Close TCP leaves the connection open

  Hello guys,.

  I use an ethernet connection to query the data of 2 units of acquisition of sensors.

  This request is motivated by a second timed loop period 30.  As this rate is very low, I have the close connection and reopen it each time.

  I try to connect to the device via the same 2 ports each time, 50,000 and 50 001.

  I get the error message that the connection is already used for a close connection of TCP executed without error before.

  The network view TCP tool monitor gives me the screen following [network_connections.png] when I run w/o specifying the local port. It seems that the previous connection are not adequately closed and are always in the TIME_WAIT state. This list is continuouslly prices, leading to errors of networks. (For the units IP address is 200.0.4.152 and 153)

  Could you please help me on this?

  Thanks in advance

  Kind regards

  Bruno

  Hello

  This seems to be a common behavior:

  http://digital.NI.com/public.nsf/allkb/119D334B8B78732E862574E1006D1839

• a upgrade to windows 7 has lost the connection to broadband by usb adapter trendnet you don't believe me call agent for microsoft who did the upgrade

  broadband connections lost from my windows 7 64 has been updated by Microsoft agent #2 case #1204554332 using the trendnet usb Ethernet card

  Hi Walter,

  To help you to propose measures to solve the problem, I would appreciate if you could answer the following question:

  You receive an error message or error code?

  Try these methods and see if it solves the problem.

  Method 1: Run the network troubleshooter to diagnose and repair any problem related to your network. The below mentioned link to get the access procedure:

  Using the troubleshooter from network in Windows 7

  http://Windows.Microsoft.com/en-us/Windows7/using-the-network-troubleshooter-in-Windows-7

  For your reference:

  Why can't I connect to the Internet?

  http://Windows.Microsoft.com/en-us/Windows7/why-can-t-I-connect-to-the-Internet

  Method 2: Try resetting the TCP/IP stack.

  To reset the stack TCP/IP go to this article and either click on "Fix it for me" or follow the instructions to fix it yourself:

  How to reset the Protocol Internet (TCP/IP)

  http://support.Microsoft.com/kb/299357

  Hope this information helps. Please come back for any clarification on this or any issue of Windows. We will be happy to help you.

• the connection of the given session was lost

  I have connected to the power supply IDRC DSP - 300-2, 5 HR via ethernet by VISA. After the connection system is normal. I send commands and receive responses. But when I stop and start feeding it new VISA refreshes the information on this subject. Get a power supply IP by DHCP, same IP has not changed, but I get the message "VISA: (Hex 0xBFFF00A6) the connection of the given session was lost" when trying to write the function VISA Write command. Information about resources in the visa system I get VISA resource find vi. How to solve this problem?

  PS Power supply connected on the second Ethernet card in the system.

  Yes, what you describe is expected behavior. When you turn off the power, the connection is broken and must be restored. How many times do you need to.communicate with this device? It might be more efficient to open a connection, do what you must do and then close the connection.

  Mike...

• TCP server loses the connection

  Hi, I tried searching for this and not found the exact problem, even if I'm in trouble he described.

  First of all I want to do is simple data acquisition with a couple of photometers, sensors and thermocouples.  I have this game on a central computer and I'm using labview to send data to a tcp port and from there another program accepts data using sockets and stores it on a remote computer.

  The problem is that, once a few hours of the central computer with all the instruments appear to be due give up in the network.  A strange thing is that it only seems to happen with the photometric measurements, which are simple analog voltage readings and not thermocouples - or at least that's how it has been for a few days.  The mainframe is still relatively sensitive and can be crazy, but no Internet and data can be harvested (socket.receive does not work).  I turned off all firewalls and antivirus interference I could think.

  Any ideas?

  Edit: My band-aid fix was to put the SRP on a more powerful than the mainframe computer, because it can be a question of resources?  I am also the two pending Babysitting until I can get a real difficulty.

  As Mark mentioned, you not close your connections. The operating system can only maintain a number of connections, and when you reach that number it accepts no more until the closure of the existing ones. Each time waiting on the listener feedback a new connection, which is a created connection that you should close when the communication ends. Instead you're down the reference, as there is no way to close it. The way you wrote it, you must close the connection inside the loop, and then close the listener after the while loop ends.

  That said, are you sure that's how you want your structured code? You must accept a single connection on each of the 7 ports + until you accept another connection on any one of these ports. It's an unusual arrangement.

• I lost the connection to Windows 2003 server and through the connector.

  I lost the connection to Windows 2003 server and through the connector.

  original title: WHS connector has stopped working.

  Hi Mjopritchard,

  The question you have posted is related to Windows Home server and would be better suited to the Windows Home server community.
  Please visit the following link to find a community that will support what ask you:

  Support for Windows Home Server

• The internet connection is lost when the computer puts itself to sleep after that idlen too long time needs to restart to re-establish the connection.

  I lose the internet connection

  Window vista Home premium intel core 2 quad CPU q6600 @ 2.40 ghz, 3.00 GB ram the System 32-bit

  The internet connection is lost when the computer puts itself to sleep after that idlen too long time needs to restart to re-establish the connection

  Hello

  Control Panel - device - network - manager double-click the used network - power management device
  Tab - uncheck the computer to allow him to turn off the device.

  Control Panel - Power Options - check at each change of diet Plan - change Plan settings - advanced
  Power settings - check the settings there.

  You may reset the default power Plans and and then change them as needed.

  How to restore the default power in Vista (and then go back and change as you wish)
  http://www.Vistax64.com/tutorials/198047-power-plan-restore-default-settings.html

  I hope this helps.

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• LOST MY IP TRYIN TO CONNECT TO THE CONNECTION

  I LOST MY IP TRYIN TO CONNECT TO THE CONNECTION OUT OF TOWN, HOW DO I GET TO RECONNECT BACK TO WIRELESS. ___

  PORTABLE STUDIO

  Enable the DHCP and the system assigns you an IP address (from the list that you create available addresses) instead of using a static - so you won't remember.

  In the meantime, the only real solution is to restore the network (including the wireless network and regular network settings) to create a new IP address, which will work with the new neework DMMX.  If you do not know the appropriate settings, contact your ISP and they will guide you through the process step by step until you are once more the program installation and connected.

  I hope this helps.

  Good luck!

  Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

• Data connection lost until the traction battery on

  I'm working on a program with the http call, we sometimes find that the device loses the data until the reset the battery connection. This happens only once in several days, but it happens again and again. This only happens on 8830 and 8330, it never happened on 9530 or other newer devices. It looks like so there is a question about the RIM OS.

  My question is, do we have any solution to work around him. (someone said that we should avoid parallel http calls, is it true?)

  I did a search on the forum, I found that some thread also referred to same issue:

  http://supportforums.BlackBerry.com/Rim/Board/message?board.ID=8300&message.ID=37249&query.ID=608157...

  It's happened a lot with me on 8830. I can reproduce the problem whenever I want. If I have several successive http requests by using a direct TCP connection the problem happens. I also noticed that it happens on 8830 with OS 4.2.x. He can't get on 9530. My explanation of what it could be a bug somewhere in the old version of the OS.

  My job is to use MDS all the time. That seems to fix the problem. But the connection still from time to time expires. (better than to take out the battery).

  Rab

• Internet Explorer lost the connection how to trouble shoot

  Windows 7, HP with amd memory chip.  Give me a lost internet connection message but I can't get any problem with laptop...  I'm confused

  Hi Lloyd,

  Your post is a little confusing: (!) You say that you get an interruption of the connection, but you are on anyway? Get the message, but are on a different computer on the same network and connection OK?

  I'm sorry, but could you explain a little more in detail what the problem is?  If you are on the same computer on the same network that you got this message, it simply means that there is a problem, but (of course) you can go back to that now. End of problem?

  Please answer with the information so I can help you.

  Kind regards

  BearPup

  I don't really know what the problem was.  I was getting an error message whenever I tried to log in using internet explore but could sign by using the Start button and the tab my favorites...  Finally, I rebooted the internet Explorer upgrade to 10 and now, I think that the problem is solved.  Thank you for your interest and sorry if my message was confusing, but obviously I was confused...

• Check the connections TCP &amp; UDP host through ACL

  Hello!

  I use ACL to control TCP UDP & connections pass through my router (C805 & C2500). I plan to control of the host, but after I have created a new ACL that and add it on IP Access-Group of my Serial interface, the acl that I add before who is used to control the connections TCP & UDP is removed because of an ACL. How can I handle this?

  What you have is a standard access list, which would block anything with the source 127.0.0.1 address and an access list more extended negates several types of traffic.

  To combine I would rewrite the access list standard as a broader access list:

  access-list 100 deny ip 127.0.0.1 host everything

  who deny packets whose source 127.0.0.1 address.

  I would put rewriting stated as first statement in the new list access followed by others which would give you this:

  Note 100 access list refuse the specific host

  access-list 100 deny ip 127.0.0.1 host everything

  Access-list 100 remark block number TCP and UDP ports

  access list 100 permit tcp any any eq www

  access-list 100 permit tcp a whole Workbench

  access-list 100 tcp refuse any any eq 135

  access-list 100 tcp refuse any any eq 445

  access-list 100 tcp refuse any any eq 593

  access-list 100 deny udp any any eq 135

  access-list 100 deny udp any any eq tftp

  access-list 100 deny udp any any eq netbios-ns

  access ip-list 100 permit a whole

  That should do it.

  HTH

  Rick

• Connectivity lost in the dmz (pix) and answer arp

  Good afternoon. I have the pix 515e with 6 interfaces.

  PIX firewall-firewall # sh ver

  Cisco PIX Firewall Version 6.3 (3)

  Cisco PIX Device Manager Version 3.0 (1)

  Updated Thursday, August 13 03 13:55 by Manu

  Material: PIX-515E, 64 MB RAM, Pentium II 433 MHz processor

  Flash E28F128J3 @ 0 x 300, 16 MB

  BIOS Flash AM29F400B @ 0xfffd8000, 32 KB

  The computers placed in the demilitarized zone, sometimes lose the connection with the other. Found a following problem: to arp request sent by a computer, it receives the response and the necessary computer and pix.

  IP address on the interface of the pix (dmz) - 172.21.35.1

  Test connectivity to the computer with the IP 172.21.35.5 to clear the arp table:

  ping 172.21.35.4

  Ping 172.21.35.4 with 32 bytes of data:

  Reply from 172.21.35.4: bytes = 32 time<1ms ttl="">

  Request timed out.

  Request timed out.

  Request timed out.

  Ping statistics for 172.21.35.4:

  Packets: Sent = 4, received = 1, Lost = 3 (75% loss),

  After ping:

  > arp - a

  Interface: 172.21.35.5 - 0 x 10003

  Internet address physical address type

  172.21.35.1 00-0d-88-ef-23-29 Dynamics

  172.21.35.2 00-0d-60-ec-85-32 Dynamics

  172.21.35.4 00-0d-88-ef-23-29 Dynamics

  very strange: address Macs.1 same et.4

  Ethereal, running on the same computer:

  N ° time Source Destination Protocol Info

  1 0.000000 172.21.35.4 broadcast ARP which has 172.21.35.1? Say 172.21.35.4

  Image 1 (106 bytes on wire, 106 captured bytes)

  Ethernet II, Src: 172.21.35.4 (00:11:25:57:f9:2 c), Dst: Broadcast (ff: ff: ff: ff: ff: ff)

  Address Resolution Protocol (request)

  N ° time Source Destination Protocol Info

  2 1.381832 172.21.35.2 172.21.35.5 ARP, who has 172.21.35.5? Say 172.21.35.2

  Frame 2 (60 bytes on wire, 60 bytes captured)

  Ethernet II, Src: 172.21.35.2 (00: 0d: 60:ec:85:32), Dst: 172.21.35.5 (00:11:25:a8:75:7e)

  Address Resolution Protocol (request)

  N ° time Source Destination Protocol Info

  3 1.381842 172.21.35.5 172.21.35.2 ARP 172.21.35.5 is to 00:11:25:a8:75:7e

  Frame 3 (42 bytes on wire, 42 captured bytes)

  Ethernet II, Src: 172.21.35.5 (00:11:25:a8:75:7e), Dst: 172.21.35.2 (00: 0d: 60:ec:85:32)

  Address Resolution Protocol (reply)

  N ° time Source Destination Protocol Info

  4 2.754731 172.21.35.5 broadcast ARP which has 172.21.35.4? Say 172.21.35.5

  Frame 4 (42 bytes on wire, 42 captured bytes)

  Ethernet II, Src: 172.21.35.5 (00:11:25:a8:75:7e), Dst: Broadcast (ff: ff: ff: ff: ff: ff)

  Address Resolution Protocol (request)

  N ° time Source Destination Protocol Info

  5 2.754839 172.21.35.4 172.21.35.5 ARP 172.21.35.4 is to 00:11:25:57:f9:2 c

  Frame 5 (106 bytes on wire, 106 captured bytes)

  Ethernet II, Src: 172.21.35.4 (00:11:25:57:f9:2 c), Dst: 172.21.35.5 (00:11:25:a8:75:7e)

  Address Resolution Protocol (reply)

  N ° time Source Destination Protocol Info

  6 2.754968 172.21.35.1 172.21.35.5 ARP 172.21.35.4 is at 00: 0d: 88:ef:23:29

  Image 6 (60 bytes on wire, 60 bytes captured)

  Ethernet II, Src: 172.21.35.1 (00: 0d: 88:ef:23:29), Dst: 172.21.35.5 (00:11:25:a8:75:7e)

  Address Resolution Protocol (reply)

  on the pix

  #debug arp

  782: arp-in: application to the demilitarized zone of 172.21.35.4 0011.2557.f92c for 172.21.35.1 0000.0000.0000

  783: arp - set: arp added dmz 172.21.35.4 0011.2557.f92c

  784: arp-in: generate the response of 172.21.35.1 000d.88ef.2329 to 172.21.35.4 0011.2557.f92c

  793: arp-in: application to the demilitarized zone of 172.21.35.5 0011.25a8.757e for 172.21.35.4 0000.0000.0000

  794: arp - set: arp added dmz 172.21.35.5 0011.25a8.757e

  795: arp-in: generate the response of 172.21.35.4 000d.88ef.2329 to 172.21.35.5 0011.25a8.757e

  Why pix sends the response to the arp request?

  Hello

  Maybe it's because proxy ARP on the pix. You can try disabling this interface with the command "sysopt noproxyarp.

• I have a Canon 7 d Mark II and I'm using Lightroom version 5.7.1 on a Mac computer. My question is, I can't get attached to my computer. Lightroom and my computer recognizes my camera, but the connection did not last long and she also gets lost and then c

  I have a Canon 7 d Mark II and I'm using Lightroom version 5.7.1 on a Mac computer. My question is, I can't get attached to my computer. Lightroom and my computer recognizes my camera, but the connection did not last long and she also gets lost connected, then lost several times until the capture of attachment option is closed. I tired buy new cables, lightrooom and call Update to Canon support, but still nothing works for me please help?

  Hi Martin,

  In order to make shooting with the Canon 7 D Mark II captive, you need Lightroom 6 and higher.

  Please visit the following link: a list of cameras that can be attached to Lightroom.

  Kind regards

  Tanuj

• My Lightroom has lost the connection to most of my photos, records and collections. They are still on the computer. It happened, while moving my laptop when it was running. The mouse is moved and it might have changed the configuration. How can I do my wo

  My Lightroom has lost the connection to most of my photos, records and collections. They are still on the computer. It happened, while moving my laptop when it was running. The mouse is moved and it might have changed the configuration. How can I make my Lightroom works properly again?

  I use Lightroom 6.4 on a Pc with Windows 10.

  Has disappeared? Try file-> open the new item, and then select each illustrated catalog until you find the catalog with your photos.

  If this does not work, please post a screenshot of the problem.

• I copy student PS CS6 which works fine except when I'm disconnected from online, why is this and what can I do to make this work if the connection is lost. In addition, everything will work OK if I update to Windows 8 for windows 10?

  I copy student PS CS6 which works fine except when I'm disconnected from online, why is this and what can I do to make this work if the connection is lost. In addition, everything will work OK if I update to Windows 8 for windows 10?

  Yes, Photoshop should work fine without the internet connection, as this is the standalone version.