Wireless Physical Adapter Keeps Disappearing?

Aug 6, 2011

I've had a strange problem with my laptop for quite a while now. From time to time, my entire wi-fi capability vanishes. The green wi-fi light goes off and my Intel PROset/Wireless tells me that I do not have a wireless physical adapter installed.From there, I go to Network Connections. Sometimes, I can hit "repair" under Local Area Connection 3 and after some struggles, the green light will come back on. However, sometimes when I go to Network Connections, I cannot repair the Local Area Connection, because the 1394 Connection is no longer even listed and, from all ways of searching, doesn't even exist on my laptop.In that case, I have to restart my laptop. Sometimes, a restart works and the wi-fi capability magically returns. Sometimes a restart does not work, and I have to power off, wait, and power back on my laptop. And sometimes, I have to keep rebooting SEVERAL TIMES in a row before I get wi-fi back.

I'm not sure what to do for it, nothing has changed with the router or the location of the router. My laptop will be fine for a couple of weeks, or I may lose wi-fi ability a couple of times in a week or so. However, at the moment, I lose my wi-fi adapter frequently, often every two minutes to perhaps every ten minutes. It has "acted up" this badly only once before (probably a month ago), and I just keep rebooting for a couple of days until everything seemed to calm down. However, I can't keep just restarting my laptop every five minutes

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Gateway NV53 Wireless Adapter Disappearing?

Sep 24, 2011

I'm trying to diagnose & repair a problem with the built in wireless adapter on a gateway NV53. The OS is 64 bit Win 7. The computer isn't mine, I was just trying to repair it for a friend. Initially, the wifi worked fine; the disk drive seemed to have a bad laser or something, sometimes there were problems with printers, it was slow to start, etc., so I thought I would just backup everything, "restore to factory defaults" (reformat & reinstall OS from hidden partition), then copy everything back / reinstall programs. I wanted to reformat just to clean it up, etc. After reformatting and updating windows to the latest version, it seemed to work fine (I hadn't tested those other problems, they are unimportant). However, after the computer is on for awhile - anywhere from a few minutes to a few hours - the wireless adapter suddenly can't see any networks. There are several networks in the area, so I know it isn't a problem with my router (also, other comps. can see them all still) After awhile longer, the wireless adapter disappears completely from device manager. I think that when it initially loses track of all the networks, the mouse, typing, etc. slow down and have jerky movement for a minute (may be incidental). When I restart the computer, the adapter works fine again, but of course, only for awhile.

Things I've tried:

-Setting the power settings on the adapter (don't allow power saving to turn this off.. box)
-reformatting
-updating drivers
-updating windows
-running antivirus
-uninstalling the antivirus

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Jan 26, 2013

I have recently gone as far as restoring my computer to its "factory" state to try and combat this issue.

Unfortunately, I'm not sure there is much else I can do at this point - the issue has not been resolved.

I re-installed factory drivers for my adapter, then replaced those with updated drivers from Intel. I was 'alright' for a while, but have had to launch Device Manager to re-enable the adapter, or restart my computer entirely because it failed to display my adapter at all. At this point, I get no result with either.

I have tried to 'recognize' the adapter as a new device (added hardware), but that didn't solve anything - it duplicated it in Device Manager and then displayed the yellow exclamation point indicating it needed new drivers - I attempted to update but it displayed an error, so I ended up uninstalling the duplicate.

At this point, I feel like it's the hardware that is the problem, and not my computer's ability to recognize it. Though I have been able to connect to my network in the past, its ability to function would be patchy, at best, if I could get it to work at this point. Should I try to reset/replace my wireless card, or is there something else I can try?

My 'network card' is fine, according to a diagnostic, and my Bluetooth works fine.

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Sep 8, 2012

I'm using dell 15r laptop and intel wifi Proset (win7 32bit), it works fine most of the time. But today i have one issue with it, i received a bubble message at the taskbar saying that "a physical wifi adapter is not installed", when i opened device manager there was no network adapter showing in there, i also tried to reinstall the driver but it's still didn't work.

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Dec 13, 2011

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Cisco Linksys E3000 Wireless Router / Network Places Keep Disappearing?

Jun 25, 2011

Desktop
Windows 7 64-bit -> cable directly to router
Laptop
Windows 7 64-bit -> wireless
Laptop
Windows 7 64-bit -> wireless
Playstation 3
-> Wireless
Xbox 360
LAN cable from router to 360

Scientific Atlanta 2203C modem to a Cisco Linksys E3000 wireless router.Ok, so if I turn everything on I can see all computers from all computers, but after a few hours/days (random time) everything disappears, and I have to unplug the router and then everything is back. Is there a way to stop this, and just have everything just be there all the time?

Code:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:UsersJohn>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : John-PC
Primary Dns Suffix . . . . . . . :

[code]....

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May 6, 2012

My new EA4500 works fine all day, both wireless and wifi, on both bands, but nearly every evening, the wifi signal disappears, as shown on a wifi app for my smart phone, but not on Issid on my laptop, strangely, and my PC laptop and iPad both disconnect, then reconnect.  Smart phone disconnects too.  It isn't like the signal drops in strength, it just goes away! I have tried various settings on modes, and bandwidths, I am using different SSID's on each band, WPA2 security with a long non-dictionary passphrase and MAC filtering.  The hardwire connection works great at 30+ Mbps even when the wifi is disappearing from the wifi scanner and the wifi connections are dropping.  In other words, the cable connection/modem is working fine, but the wifi radio signal stops or the SSID drops off the signal.  I really can't tell, but I know it is becoming very frustrating.  The old WRT54GS works fine if I put it back on-line in the evening when these things start to happen. 
 
I have turned off everything I can think of in the house that transmits or might transmit, in case it is an interference thing.  I have tried disabling the 5 GHz side, since I can't see what is happening on that band, and the last thing I tried was changing the MTU from 1500 to 1400.  So far, the past evening, it was okay, but I am not confident it will stay that way. 

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May 9, 2012

It's been doing this for over 7 or 8 hours now. And no, there's no network connection, that's what the problem is here. This is a Windows XP desktop.Basically what it's doing is within a second, this icon disappears from the taskbar, then reappears, over and over again: When I hover over it, it gives me a message about not being connected. I can't get the exact message screencapped and I can hardly even read it, it disappears too quickly.Sometimes it gives me this instead, and the connection works, but only for as long as this icon is there:But it disappears too quickly for me to load any pages completely, so they always end up being incomplete pages. When I hover over this one, it says acquiring network address.When I click repair, it gets stuck on "renewing IP address" every time, without fail.

Previously the internet connection would drop occasionally, but restarting the computer has always brought it back. I have tried this countless times by now, I have tried clicking repair, I have tried resetting the router, I have tried manually removing the connection then reconnecting to it, I have tried command prompt and running through the ipconfig flushdns, release, and renew commands, I have tried logging on as a different user account, I have tried uninstalling my wireless adapter software then reinstalling it, I have tried using a different adapter [I get a different error with that one], I have ran a scan with Malwarebytes' Anti-Malware then retried all these things, but that didn't fix it either. If my brother wasn't asleep I'd be wiping the hard drive by now as a last resort. And I will be doing this first thing in the morning if it isn't fixed.

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I can connect to the MBP from Windows 7 computers on the network, logging in with a user name and password, and access the files there as expected.

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Aug 17, 2012

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