W2k8 rs losing connection to network (DELL servers broadcom NIC's)

from the old w2k8r2 networking forum
http://social.technet.microsoft.com/Forums/en/windowsserver2008r2networking/thread/8cbc6a56-3847-4afd-aa46-8be1cf69bd9b
Still having the issue using the built in Broadcom Nic's have switched to an Intel 4 port Nic and so far haven't any issues. Trouble is I have 4 more servers all R410's to be loaded up with w2k8r2 and I don't want to go out an buy another 4 Intel Nic's

Hi All,
I am having the same problem on DELL T320 with onboard dual-port Broadcom NetXtreme 5720 Gigabit Ethernet Nic running on Wiondows 2012 Server.
The server would lose network connection within 3 to 4 days and either have to reset the NIC's or reboot.
Did anyone find a fix? or do i have the bite the bullet and buy new some Intel cards?
Thanks
ECL
I have a client with a Dell T420 and a Netextreme 5720 and the same issue. Unfortunately, this is a "me too" post, for now. I'm going to try the Broadcom drivers today, but I thought I'd add a the following:
The client reports that their server is down (which is very disturbing since it's a new server). The problem started after moving the server into it's final location and connecting to the Dell 24port gigabit switch (the inexpensive web-managed one). The
first time they reported it the network configuration appeared to have been changed. The first NIC which had been configured to be shared between HyperV and the local host had no IP information; and the second which was a member of a dedicated virtual switch
was not working. I changed the first NIC to local OS only (deleting the virtual switch) and put the VM on the second dedicated virtual switch.
The next day, the server was down. I drove over and the physical computer was online but the VM was not. So, suspecting the second port, I once again configured the primary port to be a member of a virtual switch shared with the local OS. I deleted the dedicated
virtual switch and disabled the second NIC. Of course, I set the VM to use the new shared virtual switch.
For the rest of the day, and the day after, no issues. Then, this morning, the client reported that the server was down. I had one of them power-cycle the Dell switch and everything came back. Interestingly, I have the physical machine pinging
the virtual machine and it never lost a packet - but that could be some Windows 2K12 magic as they were on the same NIC.
So, I'll head over there today and install the latest Broadcom Drivers and see what happens.
-Forjo

Similar Messages

Losing connection to network shares

I have a 2TB Western Digital NAS which, until recently, has worked with my Mac (2013 Mac Mini, Mavericks 10.9.3, 16gb RAM) without a problem. I keep all the media for iTunes and a Roku 3 (which talks to Plex Server on my Mac) on there. It mounts from the network as /Volumes/Public.
I am currently finding that whenever I leave my Mac for a few hours - say I go to work for example, or go to bed - that when I come back to it, it has dropped the volume. If I open Finder (which, if the drive has disconnected, seems to take anything up to 30 seconds to actually appear), the drive still appears under the Shared section of the sidebar. If I click on the drive the share appears, if I double click on the share it re-establishes no problem. A few hours later it will be gone again.
I've tried re-setting all network settings and created a "Home" location instead of using Automatic but this doesn't seem to have helped. I don't have any settings to allow the computer to sleep - my monitors go off but the computer stays awake. It also doesn't matter whether I connect to the drive through AFP or SMB - same problem. I'm actually wondering if my Mac is dropping off the network altogether and losing the NAS is just the most visible symptom - but surely it should automatically reconnect if this happens?
Any suggestions would be appreciated.

I have a 2TB Western Digital NAS which, until recently, has worked with my Mac (2013 Mac Mini, Mavericks 10.9.3, 16gb RAM) without a problem. I keep all the media for iTunes and a Roku 3 (which talks to Plex Server on my Mac) on there. It mounts from the network as /Volumes/Public.
I am currently finding that whenever I leave my Mac for a few hours - say I go to work for example, or go to bed - that when I come back to it, it has dropped the volume. If I open Finder (which, if the drive has disconnected, seems to take anything up to 30 seconds to actually appear), the drive still appears under the Shared section of the sidebar. If I click on the drive the share appears, if I double click on the share it re-establishes no problem. A few hours later it will be gone again.
I've tried re-setting all network settings and created a "Home" location instead of using Automatic but this doesn't seem to have helped. I don't have any settings to allow the computer to sleep - my monitors go off but the computer stays awake. It also doesn't matter whether I connect to the drive through AFP or SMB - same problem. I'm actually wondering if my Mac is dropping off the network altogether and losing the NAS is just the most visible symptom - but surely it should automatically reconnect if this happens?
Any suggestions would be appreciated.

Windows 8.1 laptops losing connect to network share

Good Morning,
We have a few laptops that seem to be able to connect to our network file share and then al of a sudden, its unable to find or access this file server. Trying to isolate what the issue could be. I am going through GPO setting to see if something
is misconfiguration. I know with Windows 7 there used to an excel spreadsheet that explained what settings did what for different systems. The logs do not seem to be providing much help.

Neeskokotywak,
If you haven’t already, try connecting to your share by IP address.
If this works and stays connected, it’s almost certainly DNS issues that you’re having.
It’s also worth trying a few commands on the laptops experiencing these issues.
Press your Windows key and X simultaneously and select Command Prompt (Admin).
Make sure to choose the Admin option as you’ll need elevated privileges for some of these commands.
Enter the following commands:
ipconfig/release
ipconfig/renew
ipconfig/flushdns
netsh winsock reset
You didn’t mention what method you were using to connect to your file share but more information on creating a shortcut to your network share can be found on
this webpage. I hope this helps!
Mike
Windows Outreach Team – IT Pro

When on internet my iMac keeps going to gray screen with message reading 'You are not connected to the internet'. My wireless connection is fine for my other devices, why does my iMac keep losing connection with network?

I have read other post about this and one of them said to uncheck "enable auto channel scan" in my router settings and chang from chanel 6 to 5. I was able to change the channel to 5 but i can't find anywhere on their page where it has the option to uncheck "enable auto channel scan". I have a Netgear router WGT624 v3. Can anyone recomend anything?

I've had this problem for months and finally called Apple support and paid the one time support fee to get a solution. I purchased a 21.5" iMac in the summer of 2011 and am currently running OS X 10.7.3. After confirming all my wifi settings were correct (already suspected this, since every other wireless device in the house works great), the Apple support tech recommended changing channels on my router from "Enable Auto Channel Scan" to one channel out of the 11 available. I currently have a D-Link DIR-655 router, but the tech said the same structure exists on all wireless routers. In other words, my situation would not improve if I bought an Apple router (Airport Extreme, Time Capsule, etc). I logged into my router (here are common IP addresses for routers... http://compnetworking.about.com/od/workingwithipaddresses/f/getrouteripaddr.htm , and made the channel preference change (in my case, unchecked "enable auto channel scan" and changed from channel 6 to channel 5). It's been a few days since applying this change and so far, I haven't lost my connectivity. Even though I live in a residential subdivision (not an apartment / condo), my iMac is detecting up to 21 other local networks and this was causing interference (some of my neighbors using the same channel). Sure enough, when I check the channels of nearby networks, I find many are using channel 6 and no one is using channel 5. To find out what nearby network channels are being used, go to Apple icon in top left, "about this Mac", "more info", "system report", under network choose "wifi", scroll down and see other wifi network info. Changing the router channel from auto enable to a specific channel has improved both my internet connectivity and speed (not sharing same channel with neighbors). Hope this helps!

Losing Connection With Network

Hi, I just reinstalled Tiger on my laptop to get a fresh start and I noticed that when I shut down my computer, I lose my connection to my wireless network. I have a closed wireless network where I have to enter an SSID and then a password each time. Before I was always logged in. Not sure what to do next. Thanks for your time! Matt

One thing that can work, try this, please ignore the exact symptoms and connection and Hardware types, it's worked for many others than the stated...
http://docs.info.apple.com/article.html?artnum=304482

My 3120 keeps losing connection to network

Hi There
Hoping someone might have a quick easy fix. I have 2 x 3120 model and both are doing the same thing. It will be connected to the network for maybe 5 mins then cannot make a connection for another 4-5 hours.
Is this a software program error? Dan anyone help??

I have the same problem.
I also checked that the SIM card works fine in other phones.
Equally, a SIM card from the same Network Provider that is working fine in another phone fails to reach the Network when placed in my 3120, either manually or automatically.
This fault has developed after about 2 years. At fist it was occasional, but now it is mostly, but not always there.
Any ideas ?

Losing connection to Network Attached Storage device

This is incredibly frustrating...
I have a Buffalo Linkstation NAS hooked into my Airport Extreme basestation, so I can use it for backups for my desktop and my wife's laptop. The volume mounts fine and I am able to copy files to and from without any problems, except for the known issues with long file names and backups over 2 Gigs.
However, I haven't been able to perform a complete backup of my user directory due to losing the connection to the volume.
It seems to happen at random times during the backup process. It doesn't seem to matter if I connect to the NAS drive via AFP or SMB. I've tried many different backup programs, including SuperDuper, Retrospect, and Apple's Backup, and all experience the same issue.
I have no other devices connected via Firewire, and no lower-level software running like virus scans. Despite trying many times, I have yet to make it through a full backup. And I have never seen the connection to the volume dropped when the volume is inactive, only when files are actively being copied.
Any help would be incredibly appreciated.

Interesting thought, yes I do. I had considered that, although the problem would occur at any time, even if I tried a backup during the night when the phone never rang.
Regardless, the problem seems to be solved. The Buffalo Linkstation setup includes a setting for (I believe) Ethernet packet size, or something along those lines. Increasing the size has apparently fixed the problem. Backups seem to be working fine with Apple's Backup 3 or SuperDuper.
Thanks for the thought!

Losing connection to network question

hello,
i have a pretty simple home network: dsl line/modem, linksys router, 2 mac laptops, 1 windows desktop. my dsl only gives me up to 1.5mbps download speed which can easily be "maxed out" by watching youtube on one computer while maybe doing a download on another. i have noticed often during this situation i will lose connection to my network and it will return after a few minutes. so my question is does this make sense about getting disconnecting when maxing out and is there a solution?
thanks,
rick

max out your connection it can drop?
Yes. 2 mac laptops, 1 windows desktop. With 3 computers accessing the network at the same time with only 1.5mbps, that will defintily slow your connection down and cause disruption in your service.
Limitation... you would have to discuss that with your ISP.
Thank you for the star!
Carolyn

Clients sort of losing connection to network homes

Hi! We're running 10.5 with the latest updates. We authenticate through eDir and serve home directories using Novell NFA. For the most part it works very well and we just use OS X server for some basic preferences management.
Today two users, at different times, reported that they were no longer able to make modifications to their home directories. This happens in the middle of the session and at the time was solved by logging out and logging back in.
I looked in to it and found that if you point a misbehaving client at /Volumes/share+/user's home+ it seems to work properly. You can create folders and save to it, etc.
However if you click on the Home directory under Places or the Go menu, you see the same directory but can't make any changes to it. Also, importantly, any changes you made to the directory using the method described in the above paragraph are NOT reflected until you log out and back in.
Has anyone seen this before?
thanks,

Interesting thought, yes I do. I had considered that, although the problem would occur at any time, even if I tried a backup during the night when the phone never rang.
Regardless, the problem seems to be solved. The Buffalo Linkstation setup includes a setting for (I believe) Ethernet packet size, or something along those lines. Increasing the size has apparently fixed the problem. Backups seem to be working fine with Apple's Backup 3 or SuperDuper.
Thanks for the thought!

Network Drives Losing Connection from Server 2012 to Windows 7 64bit Machines

I have about 20 users at my facility and recently upgraded our server from one running server 2003 to one running server 2012. Since that occurred, I have had numerous issues that I did not encounter on the old server.
Lately, users have been losing connection to the shared network drives randomly and constantly. The drives will come back on-line on their own but it could be 2 minutes or 30 minutes before they do and when users are in the middle of working on a document
from the network, they are unable to save until the drive comes back. Manually disconnecting and re-mapping them works sometimes but then the problem will re-occur. I have tried re-doing the shares and security settings and run a couple of supposed hotfixes
on the client side and the server side to no avail.
Now our regional office is suggesting that I re-connect the old server and then rebuild the new one with server 2008 r2, something I would like to avoid if possible.
I feel like this is a simple setting that I am missing, no conditions have changed except for the new server.
The server is a Intel Xeon CPU E5-2609 2.40GHz with Server 2012 64 bit on it. All computers (except on on 32 bit) are running Windows 7 Enterprise edition 64 bit.
Please help.

I made this change to the registry on the server and am waiting to see if I have any more drops.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters
Value:
autodisconnect
Data
type : REG_DWORD
Value:
ffff (Hex)
There was a client side change suggested but I am missing that value for the client side change and others in the organization who don't have it are not experiencing this problem.

My Apple TV is losing connection to my network

I've had the Apple TV 2 for several months, and it's been working flawlessly until a couple of weeks ago, when it started losing connection to my home network. In other words, I turn it on and I can't use it until I reconnect to my wi-fi password, etc. This never happened at all until a week or two ago, and it's happening nearly every day--once I reconnect it's fine, but the next day or so I have to re-enter my wi-fi password, a major annoyance. I have a feeling my router may be experiencing some problems, but still wondered if anyone else has this problem and if so, how it was resolved. In the past if I had any operational problem, just unplugging it and plugging it back in works fine, but this is a completely different issue, one of connectivity, and seems specific to the Apple TV and not necessarily any of my other internet devices. Once reconnected, BTW, all my previous settings seem to be intact.
Thanks.

I'm having the same trouble as the OP, started around the same time. AppleTV 2nd gen losing wifi PW about once a day.
* The only recent infrastructure change was me converting from ISP-provided wifi (2.4ghz "G") to an Airport Extreme (5ghz "N"). That's been working perfectly since April, and this ATV2 problem started only a couple of weeks ago (early July)
* I am the only 5ghz user around here. Yes, I checked with inSSIDer. Yes my PC is on the 5ghz band too.
* I haven't actually timed it, but it seems to happen almost exactly 24 hours apart - in my case it happens during the hour I'm out walking.
* I don't believe it's associated with sleep mode. Mine is set to 4 hours, and:
--- I can pause a TV show, go walk for an hour, then come back and it's d/c'ed
--- I can pause a TV show after a reconnect, go to sleep for the night, wake up, wake the ATV2, and it resumes with no problems.

Wireless losing connection to wired network and lan

I have a customer that has an 871W ISR. They are using WEP encryption and a mix of b and g cards. Recently they have started losing connection to all of their wired network resources and the wan, but they don't lose association with the 871W itself. They show excellent signal strangth and keep their IPs. A reboot of the router immediately fixes the problem. There seems to be no pattern or common event that triggers any of this. Anyone else seen this problem before? It started happening after I did a sh tech and the router locked up halfway through it, so I had to reboot. I've reloaded the image thinking that may fix the problem and it has not.

You can clear the interface statistics on the Detailed Status tab, and let traffic run for a time, then refresh the statistics. The ratio of errors to good packets sent and received should be better than it was prior to the test.

Losing connection to HP7520 on wireless network

I probably would be OK if I only had one pc but I have 3 - Win8, Win7, and Vista. Tech support had to install printer after downloading software from HP. Apparently disc is worthless.
It was installed using an IP address which I think was a mistake. IP addresses change and this may be the issue here.
When I am on the WIn8 or Win7 pc the printer goes offline or is not connected.
Question: should I share the 7520 on al pcs or none at all?
Question: If I disable my security software firewall, should the printer be found and installed on wireless network OK?
Part of my problem and confusion about this issue is how the printer is defined when viewing Printers on each pc. There are HP 7520 Series, HP 7520 Series(networking), HP 7520 Series(Fax) - to name a few - depends on the pc OS.
Some definitions have the IP address shown when viewing the printer properties, and other definitions show the serial number. I have installed a lot of HP printers on a wireless net and never had these issues.
Any ideas on why I keep losing connectivity to printer?

Hi jghiller,
Question: should I share the 7520 on al pcs or none at all?
The printer should not be shared from one computer to another. Each computer can directly access the printer.
Question: If I disable my security software firewall, should the printer be found and installed on wireless network OK?
The firewall can cause problems, but not like they used to. With this being a current printer, most firewalls should work fine with the printer.
Dropping from the network:
There are multiple possibilities.
1. Try turning off UPnP in the printer embedded web server. Type the IP of the printer into a web browser to access the EWS. On the network tab, selecting Networking on the left side and then UPnP.
2. If your router supports double width data channels, try changing the router to use single width channel. You will need to access the EWS of the router. Most routers will say either default or double. There might be a number listed instead. Try setting the router to 20Mhz channel width.
3. Also, setting a static IP for the printer could be a good idea. That way the printer IP won't change and possibly get lost by the computers. This setting also appears in the printer EWS.
Try the HP Wireless Printing Center for tips:
http://www8.hp.com/us/en/campaigns/wireless-printing-center/overview.html
I was an HP employee.
Please mark the post that solves your problem as "Accepted Solution"

Losing Connection to BB Network (BES)

My wifes 9550 keeps losing connection to the BES network. Happens about once or twice a month. She is not a power user and doesnt install / add anything. It has happened since she got it back in NOV. I updated her to 607 when that was releaed....thinking it might help (Havent pushed her to 713 yet). But it still happens!! Again today it did. She wont get emails etc till it connects.
Shes not doing anything strange.. the little 4 dots next to 3G just disappear. I have the same phone, we are both on VZ... and I have had no issues like this.
Any Idea?
for all your theming needs go to http://bbthemelab.com

Hi StaticFX,
Is it possible you can PM me your wife's PIN? I can take a look to see if there is anything unusual going on from our side.
Also, have you contacted Verizon about the issue?
Thanks
-CptS
Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)!

I am experiencing network failures with my Airport Extremes: the main router is a 2nd Gen, the extension a 5th Gen. The 5th Gen keeps on losing connection with the main router. Any ideas why?

I am experiencing network failures with my Airport Extremes: the main router is a 2nd Gen, the extension a 5th Gen.
The 5th Gen keeps on losing connection with the main router and thus with the internet.
Any ideas why?

Is the second Extreme configured to "extend" the network created by the first? If so its position must be such that it has a strong wireless connection to the first Extreme. If it is at the limits of the first one's wireless range its connection will be tenuous. Place them closer together and determine if that makes a difference.

W2k8 rs losing connection to network (DELL servers broadcom NIC's)

Similar Messages

Maybe you are looking for