Dell Latitude E5440 :: WiFi Disconnect After 20 Seconds - Hardware Switch Is Off
Jan 4, 2015
Another on my growing list of unwelcome "features" of this machine...
Around 20 seconds after logging in after a full reboot my Wi-Fi connection is dropped (having already connected during the boot/login).
I'm using the Intel software to manage the Wi-Fi connection and it says it can't connect because the hardware switch is set to off. This is obviously untrue.
Only solution I've found is to manually flick the hardware switch to OFF and then back to ON, then it automatically connects.
Seems like a BIOS issue if it's suddenly turning the adapter off for no reason. I'm already on the latest A07. Problem does not occur when hibernating and resuming from hibernation.
I previously let Windows manage the Wi-Fi connection but it never automatically connected at all, hence the switch to the Intel utility.
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Jan 4, 2015
Having done a lot of monitoring of my Latitude E5440 because of fan issues I spotted large CPU spikes every 9 seconds (no apps open or network traffic):
I can see it's caused by a group of "DcomLaunch" services. My old laptop with same OS, software, Anti-Virus (Avast) does not show these spikes.
Looking at similar problems reported on the net it was down to a third-party service/driver or malware but I have done a full scan and it still occurs in Safe Mode:
I have also gone through disabling as many services and drivers as possible but no luck. Seems like it must be something to do with power management?
I'm not a gamer as a 25% CPU spike every 9 seconds would be totally unacceptable.
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Dec 23, 2014
I ordered the Dell Latitude E5440 14" Laptop i5-4310U 4GB 500GB SSHD Windows 8.1 Pro, but I hate to use the windows 8.1, is there anyway I can downgrade the windows to 7 Pro ???
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Dec 31, 2014
having issues with my Dell Latitude E5440. The BIOS does not recognise it, I tested the HD with a external caddy and it works fine. I messed a lot with BIOS thinking it could be a settings but had no luck.
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Dec 15, 2014
I am stuck with a dell E5440 here power light comes on and then laptop switches off and back on again and just repeat itself! I did not tried anything yet. It is i5 vpro and I installed 1TB HDD few months ago, it has been working no problem since yesterday.
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Dec 12, 2009
my laptops wifi is frequently disconnecting after connecting for 5-10min.
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Jan 29, 2015
I would like very much for the USB ports (or at least one of them) to stay on when the computer is in sleep. I travel frequently and hotel rooms have limited power and I would like to keep my mobile phone plugged into the laptop. I've seen you answer a few questions on USB limitations and settings...
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Dec 16, 2014
I was given a Dell Latitude E5440 and a docking station for my work. I brought in a wireless mouse and keyboard that I use for input (the reason for mentioning this will become evident later). The computer and dock were NIB and are ~ 2 months old. I have a Dell external monitor plugged into the dock via a DVI cable, and use it as a secondary monitor.
One thing I noticed early on with this setup is that the interconnection between the computer and dock is 'flimsy', at best. If I move the computer/dock on my desk by sliding it around, I lose connection and the external monitor image disappears.
My current issue is related but a bit different, I think. On 3 separate occasions in the past couple of weeks, the notebook screen has gone black without warning and the system has shut down. Once I was able to get the system back on, I was able to determine that the cause was that the battery had drained to 5%, and the system had shut down.
What I find odd is that this has happened while the unit is on the dock. What is even more odd to me is that, apparently, while the notebook has lost power connection to the dock, the video connection to the external monitor remained in tact. That is, in fact, the main reason I did not notice that the battery was draining. That, and the fact that I was never shown a warning that the battery was getting low and I should find an outlet. So, only the power connection pin or pins of the dock appear to be affected. This happened last night when I left for home. I had not touched the computer all day, since I have the wireless keyboard/mouse I mentioned above, but I did shut the lid to put the system into sleep mode. However, during the night, it apparently shut off because, the next morning, when I went to turn it on, I was greeted with a black screen stating the system had shut down unexpectedly and did I want to boot into Safe Mode. Upon booting, both PowerPoint and Word prompted me to 'recovery' my files that had been opened when the power was lost.
Questions: Why I would not receive a warning from the PC that the battery was getting low, so that I could either check the power connection or have time to gracefully shut down. That is much more preferable than the system behaving the same way it would if I had simply removed the battery when it was on.
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Dec 27, 2014
I have a Dell Inspiron 1764 about a month ago it started having internet problems. I have ruled out the problems being related to the actual internet service. I have excellent wifi signal and yet my laptop constantly connects and disconnects. The length of time varies. Some days I get to be on the net while others I dont at all. I have run diagnostics, downloaded darn near every update imaginable.
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Jun 12, 2014
I have a latitude E6540 and when I connect a external usb 3.0 disk it begins connect and disconnect randomly. I have tryed another disk and I have the same problem. This USB disk in other latitude E6540 works fine. I have disabled power option in the usb devices and reinstall drivers but nothing solved the problem.
windows 7 x64
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Jul 11, 2014
Just to clarify, my laptop is a Lenovo ThinkPad T420i, Type 4178. It is about 2 years old. I have Windows 7 64bit.
My laptop takes about 2-5 minutes to switch on, sometimes it doesn't turn on at all. The screen freezes every 15 seconds or so, but I am still able to move my cursor around. It also lags quite a bit. For example, typing 'how to download google chrome' will take me sometimes an entire minute, because only parts of the sentence will show up on the screen at a time. My keyboard is responding fine. The problem is not with the wireless internet, because even when the wireless is off the laptop is still unbelievably slow. Watching videos is impossible, because the screen freezes so much.
I have been having this problem with my laptop's performance speed for about 2 months now. I had it completed wiped back to factory settings, downloaded every malware and virus scanner known to man (none of them found any problems with it) and updated all my drivers.
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Dec 1, 2009
I installed the latest dell connnection manager, but the wifi-catcher switch is still not functional. Has dell abandoned this feature or am i missing something?
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Jan 7, 2015
i Bought a dell precision m4800 it came it windows 8 i updated it and now my wifi switch is not working it does'nt turmn off and now i can't turn the bluetooth on as well, it says that you need to turn on the wireless hardware but it is already on
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Dec 22, 2009
i have on my HP TX2000 laptop is that the wifi switch stays in the amber color , and no matter how much i play with the switch , doesn't change . i tried to initiate the " diagnose & repair " on it , but it keeps saying that a " plug is disconnected ".
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Jan 22, 2009
somehow the wifi switch on my hp dv2000 broke. i dont know how it happened, but it doesnt matter now as i cant use the internet because it is in off mode. i tried enabling it on device manager, but with no luck since i think its because it is still in the off position, and w/o the switch itself i cant manually switch back to the on posistion... anyone know how i can replace the switch? is it sold by hp, ebay, online retailer? is it an easy fix? and most importantly is it expensive? some crappy pics taken from my phone show the problem...
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Mar 19, 2012
I have a Pavilion G6 - 1261sa running on windows 7, 64-bit. I cannot switch on my wifi and change the orange light. ive searched solutions for this, and most seem to be solved by installing drivers for the wifi card. and most seem to be solved by going into Device Manager / network adapters... and so on. But as I get to this stage my laptops device manager does not recognise a wifi card as being there!? I can only connect using ethernet....
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Oct 10, 2014
I've just added an m-sata drive and installed my windows 8.1 there.After that i can't switch my wifi on!The option is grey and i can't switch it on!
I've tried:
1.re-istalling the wifi driver, nothing happend,
2.install an older version (6.0.2) of energy management, nothing happend
3.putting back my old drive (with my previously working fine windows), nothing changed
4. bios reset, and again nothing happend!
The option for wireless is enabled in bios.
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Mar 2, 2015
I have problem a with my Switch 10. The internet connection drops frequently. It is followed by the signal strength icon showing 'Limited'. I then turn off WI-FI and turn back on and it does not recognize any networks at all. I then go into network settings, run the troubleshooter and it does its stuff, re-setting the network adapter, and then informs me that it could not find an issue. After resetting the adapter it works fine again.I have tried uninstalling and installing latest drivers but the problem persists. The problem lies within the adapter itself or the driver.
My adapter shows as being REALTEK and i read on here of similar problems with the Broadcom adapter, which makes me think that the driver is causing the problem. Someone suggested that the Bluetooth was causing a conflict, so I removed bluetooth and it made no difference. (I have re-installed bluetooth. All drivers are latest ones.My switch is not a month old yet and this happens a couple of times a day. and am close to returning the product. I like it, but cannot put up with such an important issue as the internet randomly dropping.
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Apr 4, 2010
I am trying to use a Latitude D630 docked in a PR01 port replicator with a KVM switch. The problem I am having is that the video signal is not displayed using the PR01 DVI port.
The Latitude D630 itself does not have a DVI port, however, when docked in the PR01, the port replicator has a DVI port that will display a video signal when connected directly to a monitor. When the KVM switch is placed in line between the PR01 and the monitor then the DVI signal is not displayed .....
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Jan 19, 2015
I just bought this today and it will not connect to my WIFI. I have Netgear WNDR 4500 router. It does not see the home network.
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Oct 28, 2014
I manage to pair my 2-in-1 pc Acer Switch 10 with an externat Bluetooth (bt) device only when the tablet is connected to my home wifi network. As soon as I disconnect from the wifi network, the pairing with the bt device is disabled. If I try to pair the bt device when wifi connection is off, the pairing succeeds just for a few seconds (1 or 2) and then it disconnects.
The support assistance of the bt device, since it actually manages to pair with the pc in such wifi wird conditions, suggested that it probably can be a problem due to the chip of the pc that probably manages both the wifi and the bt connections and is not able to manage them separately.
[URL]
and updating the bt driver downloaded from the ACER Drivers and Manuals webpage. However, the installation procedure were interrupted as the installed bt driver appears to be "later".
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Oct 13, 2009
It seems my VGN-Z21WN wifi module is dead. Whenever I put the wireless switch on "ON", the led never lit up
Is this known issue ? Is there something I could try before sending it to Sony support center ?
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Aug 8, 2009
My new Latitude E4300 laptop finds my Home wireless network but is not connecting to it.
I get a message saying unable to connect. My Network password is properly fed and my laptop is not far away from my router.
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Jan 7, 2015
I have a latitude 3540 . Recently I installed windows 8.1 64 bit on it. All the drivers works except the WiFi. When I am trying to install it its showing a message "The installer cannot run on this platform. Pls select the package for your operating system". I tried both older newer versions of the driver package downloaded from dell website.
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Apr 10, 2013
I have a Dell D630 Latitude laptop that connects to most Wifi Networks, but NOT my home network.In fact, It doesn't even show the network when I pull up area networks. It doesn't show any networks at all. However, when I take it to a Starbucks or McDonalds, I can not only find a network, but I can get on the Internet just fine !Do I have something blocking the network from being seen? Is my virus program Microsoft Essentials blocking the network for some reason?
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Dec 4, 2012
I can not install WiFi driver for Dell Lattitude E5530, Windows 7 Professional 64-bit.InstallShield Wizard aborted with this message:"This platform is not compatible with Intel(R) WiDi or the application is in use."I downloaded all drivers after giving the Service Tag of my laptop and installed then in the correct order. Only WiFi driver failed to install.
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Sep 3, 2009
I have ordered E6400 but I have choosen Intel 5100 wifi card with two antenna port. I heard that this model isn't very good so I'm thinking about the upgrade to Intel 5300 with 3 antenna ports. I have a question about the antenna cables. How many cables are there near the wifi card in latitude with 5100? two or three? If there are only 2 cables, so the upgrade brings me no advantage.
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Nov 23, 2014
I have reimaged my Dell E4310. But wifi is not working. I tried to download wireless driver but driver is failing during extraction.
How do I find out correct driver that can be used Windows 7 64 bit
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Jan 15, 2013
We have found that the latest driver for the Intel Ultimate-N 6300 AGN WiFi adapter for Windows 7 64 bit gives NETwNs64 Event 5060 errors when connecting to WiFi using Radius (Certificate) authentication.
We have tried Network_Driver_597FG_WN_15.01.1000_A02 which is the latest on the Dell web site..We have tried Wireless_15.3.1_Ds64 which is the latest on the Intel web site.We have had to revert to the NIC_DRVR_WIN_R292654 which is version 14.0.1.2 driver which is both stable and does not give errors in the event log. Given that we do not have issues with the version 14.0.1.2 driver, we intend to stay with that until advised otherwise.
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Sep 9, 2014
I have a Dell Latitude E6330 that is great, but when I plug it in to the docking station, it uses the docking stations NIC, but disables the WiFi.
The WiFi here is a different network and I need both.
(Running Windows 7 64-bit)
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