T400 wireless hardware problems

It seems that my wireless adapter is not detected at all - almost feels like 7 small gnomes came the other night and silently lifted it out of my laptop! There is simply no network adapter in Windows Device Manager, the green wireless led indicator remains switched off at all times. I checked that I have not disabled wireless hardware switch (I have not, and bluetooth works just fine), and that I have not disabled it in BIOS (reloaded BIOS defaults to be sure). Furthermore, it was working fine until today when it suddently died. Does anyone have a faint hope that I can solve this without involving Lenovo Tech support? I am running Windows 7 (and Ubuntu 9.10), neither of which now detect my WLAN card. The WIFI card was manufactured by Realtek, it is 8192E model, came standard on my T400.

Hi blackdoggy,
Watch out for those gnomes!
Have you sent your T400 in for service? Looks like you may have.
Was thinking it's possible that your WiFi card became loose in its internal slot. Another member recently fixed a similar problem by removing then re-installing his WiFi card. The Hardware Maintenance Manual (available from Lenovo Support downloads) has instructions, and you can watch a video at:
http://www.lenovoservicetraining.com/ion/
(Look at the video for the T61 / R61, which is physically nearly identical to your T400)
The WiFi card is considered a customer replaceable unit, and it will not void your warranty to remove/replace it.
Best regards,
Frank
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Similar Messages

T400 wireless conection problem

I reload my T400 with Windows xp.sp2 recovery DVD. Then upgrade to xp.sp3 and renew all drivers(bios & firmware) with the latest at Lenovo website.
After that, I have problem for wireless connection after startup. Browser shows "website xxx, found waiting for reply...", no connection at the end. My wirelesscard is Intel(R) WiFi Link 5300 AGN, T400 27671G.
Checking the system event viewer, it gives an error & warning:
-------------------Service Control manager
The SessionLauncher service failed to start due to the following error:
The system cannot find the path specified.
------------------ dhcp warning
Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address xxxxxxx. The following error occurred:
The semaphore timeout period has expired. . Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.
Anyone has the same issue?
Appreciate any advice...
Message Edited by Saskia on 04-18-2009 03:06 AM
Signature on work

Hi LANOgre,
firstly the link you provided goes to empty place.
I have this Lenovo T400 new ThinkPad and its detecting all Wirless routers in my neighbourhood but not my new Netgear Super G WGT624 wireles router.
I have another laptop Dell Latitude in the same household 630 with Which I can connect to the Netgear router.
What is the reason, if there some kind of mismatch in the Wireless drivers, or its the hardware.
I am stuck up with Laptop and the router.
thanks
viveks

Lenovo T400 Wireless Conncetion Problem!

Hi, I have a Lenovo T400 Laptop. Recently, I got some problems in connecting to wireless networks. My laptop can find available wireless networks. I can see "Access Connections" menu with available networks. When I click on "Connect" to access a network, a menu bar appears showing that WIFI is trying to connect to the network. However, after a couple of minutes the connection fails in "waiting for IP configuration" step. I tried it with different networks and got the same problem. I would be very grateful if someone can help me about this problem. Regards, Ali

Okay, that sounds like a faulty intel wireless card, i had couple of them doing that. Do you have warranty remaining?
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

X201 Wireless switch Hardware problem - PLEASE HELP

Hello everyone,
I have been a regular reader of this wonderful forum and have also participated on a few questions. I have an x201 which I bought from UK 6months back.
After a smooth sail for many months and just when I thought life was going good, I have a wireless switch problem that pops up out of nowhere. I never use hardware switch and had to do it only last week because of checking for my internet connection problems.
Only once in my entire experience with this laptop that I put it off, now it has become so sensitive that even shaking the laptop while typing turns off the laptop. On reading about this problem I found out that it is quite a common problem with x-series and has many users affected from it. After confidently calling the customer support they ask me to pay 200euros just to "TAKE A LOOK AT THE PROBLEM"????. Apart from at least acknowledging the persistent problem across all the models they end up asking me to pay for everything and cannot tell me how much it will cost me or even tell me how long it will take to replace this.
Is there any other way to do this? The support told me that the only other way to repair this will be to buy the Base switch myself and then replace it. I am a biologist doing my PhD and have no knowledge of all these. Apart from all the appluad this laptop got from my colleagues, now they all think this is a joke by Lenovo to be charging for something that is entirely their mistake.
Can anyone point to a solution please and help me. I was really looking to buying an ultrabook next year but looks like replacing a switch is going to cost me 1/4th of what one would be for an entire laptop.
PLEASE HELP

Hi chaihg,
I understand that the issue has not been resolved.
I would like to see if I can help and I've PMed you for some details. Do let me know.
thanks!
lak_sg
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How can I get the wireless hardware fixed on my HP photosmart C7250 all in one printer?

I did the test by holding down the # 6 and it said that the wireless hardware needed service. Any advice on where to get it serviced? Thank you!

Hi,
Please use the following link (under "Manage Print Apps" to cancel/remove it:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02940901&cc=us&dlc=en&lc=en&product=5058336&tmp...
You may also get this:
My Print Apps
To view and manage print apps for your printer, use the display on the printer itself. This website cannot manage print apps for your printer. In this case, you have to cancel from your printer.
Please also try this (if the above mothod did not help):
http://h10025.www1.hp.com/ewfrf/wc/clc?tmp_showAll=false&destPage=document&cc=us&dlc=en&docname=c031...
Regards.
BH
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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Mac Mini Bluetooth hardware problems ?

I own a Mac Mini Intel Core 2 Duo 1Gb bought last October, an Apple wireless keyboard and an Apple wireless mouse, both I formerly use without any problems with my old Powerbook G4. By now, I used them with my Mac Mini it worked perfectly fine. But since two or three weeks, I’ve got big Bluetooth connection problem. Randomly, after one or two hours of use, both keyboard and mouse loose connection and the Bluetooth symbol change itself into a strange one. I had a look on your site to learn the meaning of it and the symbol is see which is a Bluetooth symbol with a horizontal zebra means that no Bluetooth hardware can be found! Does my Mac Mini built-in Bluetooth card have problems?
Since I haven’t got any wired USB keyboard or mouse I have to reboot my Mac Mini quite roughly. Sometimes one reboot is enough to make the Bluetooth of Mac Mini to work again, sometimes not and I have to wait a little bit more (more than ten minutes). I can see it works again as the Bluetooth symbol is the right one again (the one with the dots).
It is very annoying. And I am a bit sad to have such problems with Apple stuff. Is there something I could do to avoid such a waste of time? Or shall I call Apple Care for fear it should be a hardware problem.
Of course, I use brand new batteries for both of them.
Message was edited by: Christophe Canus

***
My mini is doing it as well. Just started doing 2-3 weeks ago. Logitech Denovo or Apple Bluetooth. Doesn't matter which. Loses it in about an hour or so. Al Keyboards and mice were purchased at about the same time as the core 2 duo mini, ~ last October.
Must power cycle the machine to get it back and it must be paired again. Very annoying. Can't remember if it coincides with an Apple update.
This mini has had the superdrive replaced twice, once within 6 weeks of purchase. Ever since Leopard, it's been close to the best media head. now this...
Sigh.
(What makes it not the best? Frontrow doesn't sort titles correctly [1, 10, 2, 3 - wrong!], doesn't force mount aliases in the movies directory, doesn't put out 1080p without hacking. And I'd so love eyeTV integration with Frontrow. It'd be perfect then.)

Troubleshooting Airport-Hardware Problems

Hello - I am wondering if anyone knows of a way to test if the airport card itself is malfunctioning or if there is possibly a different hardware problem.
Several months ago I believe my ethernet port got fried in a lightning storm (because my router, modem and ethernet port in my PC all got fried). I've been solely using my airport card since.
A couple days ago that didn't work either. I am able to connect wirelessly with my new iMac, so it doesn't seem that the problem is with my router. I cannot connect at any of my other wireless spots either.
Before I try to buy a new airport card, I'd like to find out if there's a way to test the hardware.
I have tried reinstalling the OS by doing a Archive and install, but that didn't seem to do any good.
Thanks.

Hi, Steve. Does System Profiler "see" your Airport card? If not, the first thing to make sure of is that your Airport card cage is securely connected to your logic board. That connection tends to work loose over time, especially in Tibooks that are picked up and transported frequently.
Go to this page for easy instructions on removing the Airport card from a Tibook. As soon as you get the bottom cover off the machine, the card is right in front of you. First remove it gently from its slot or cage, then reseat it firmly. Finally, press down hard on the rectangular tab at the end of the ribbon cable that's attached to it — that's its connector to the logic board, and that's what most often works loose. If yours is loose at all, you'll feel it click softly into place as you press on it. Then put the bottom cover back on and test again to see whether System Profiler sees the card. Post back with results.

Fix for Airport Wireless Connection Problem stating Self-Assigned IP and not wanting to connect in Lion OSX.

Fix for Airport Wireless Connection Problem stating Self-Assigned IP and not wanting to connect in Lion OSX.
Bought my girlfriend the newest Macbook Pro 13" and began experiencing problems with my wifi the moment we got home. Her Macbook would not connect to our home Wi-Fi while my old Macbook Late 2008 running Snow Leopard connected without a problem. Airport would say that it had a Self-Assigned IP address (168.x.x.x). Did not realize it was a Lion problem until after using her Macbook Pro and becoming jealous of the new OSX, I upgraded. Soon after I was unable to go online. Luckily I had my iPad 2 and I began to scoure the net for help. Ran into allot of suggestions but it was not until I tried the following all together was I able to share the good new, from my Macbook. Hope this works:
First go to Preferences > Network and click on the cog next to the + and - on the sidebar and click Set Service Order
     - Move Wi-Fi to the top and click ok.
     - Set location to Automatic
     - Click Apply
     - Click Advanced
     - Click the "-" on the selected Wi-Fi router you wish to connect to
     - Click Apply
     - Click Lock to Prevent Further Changes
Go to your Mac's harddrive, (Macintosh)
     - Go to Library > Preferences > SystemConfiguration >
     - Delete "com.apple.airport.preferences.plist" file
Turn off your computer
     - push and hold Option+Command+R+P
     - turn on computer
     - when the grey screen turns on you will hear the OS X "ON" sound (for lack of a proper term) and it will momentarily restart.
     - you will once again hear the "ON" sound, let go of all keys.
     - this resets your PRAM
Go to Preferences > Network > Advanced > + sign
     - click Choose a Network
     - Select your network and enter password
Viola!!! I tried this on my Macbook Late 2008 and my girlfriends new Macbook Pro 2010

     No you are clearly mistaken. The Self-Assigned IP address problem exists on many Macbook Pro models, including the current model, which I mentioned as being the original computer with the problem. While my 2008 Macbook is older it was working perfectly on Snow Leopard and didn't suffer issues until switching to Lion. So clearly the problem exists on the operating system and not so much the hardware.
     I called Apple Support and they had no fix for the problem and told me that this would hopefully be addressed in a subsequent update. It wasn't until I came accross the answer after trying many different methods that I got both of the Macbooks to connect to my router. Otherwise I wouldn't or could not have been surfing the internet for the last 4 months.
Cheers.

Macbook Pro Wireless Connection Problems

I bought my 13 inch macbook pro 1 week ago and I've had wireless connection problems from day 2 (I think after the updates).
Problems include:
- Safari cannot connect to the internet for 5~10 minutes after I turn it on, whether it be from sleep mode or completely off or restart (the fastest connection I got after turning it on was about 40 seconds)
- Loading takes ridiculously long and eventually Safari cannot find the server
- Airport signal (on the top right hand corner) is always full when it is not working
- Sometimes internet works but it is ridiculously slow
However, when the wireless connection stabilizes, Airport Signal is 2~3 bars full and internet works SOOO well and I love it so much when it does. But the problem is that it stabilizes like 30 minutes to never after I turn it on and it makes me so mad I want to explode this piece of crap in the microwave.
So I've called apple support, and they made me try four things:
1. Reset modem, router, and computer
2. Delete caches, reset Safari
3. Putting Airport first on the Service Order and resetting DHCP Lease
4. Connecting with Ethernet Cable then resetting the computer
None of these worked, and I'm suspecting that the cause of the problem is the hardware (not the aluminum body that's just bs) because my router and modem are working fine (my other samsung laptop is working perfectly). I don't think the problem lies in my network settings either because I did exactly what the Apple technicians told me to do. So after Appleguy made me try all 4 of those diagnostics, he told me to contact my router company NETGEAR because he thinks nothing is wrong with the mac hardware, so I did. The NETGEAR lady told me if one laptop is working and another isn't, there is nothing wrong with the router. So if nothing is wrong with my hardware, software, router, modem, ISP... Why do I have wireless issues????!?!?!?!?!?!?!?!?!?!
I'm going to return this <edited by host> or get another one with my warranty

Same thing here.
I've got a Macbook Pro 15" bought 6 weeks ago, airport express bought about a year ago. All updated with latest software/firmware, etc. Problems include:
-Sometimes when i pull down the network list, my network isn't even there, yet i'm still connected to it. My airport is appx 10 feet away in an open area.
-usually after opening safari or firefox for the first time upon sleep, restart, or just opening the program after i had quit it, it is miserably slow. it takes about 2 minutes for pages like msn.com to load. finally when they do, its faster than you can imagine. that lasts for about a minute. then its slow again.
-when logged into ichat and i send messages, i would sometimes get a "connection timeout" message. my buddy would end up getting the message about 5 minutes later.
My iphone and dell laptop work fine. i haven't tried running parallels, but if bootcamp works, so should prlls.
I've reset the modem about 20 times. i've reset the airport about 20 times. i even re-installed my OS on the mac and nothing has done it.
Weird thing is that i've had my mac for 6 weeks, and this problem surfaced only 3 days ago.
Clearly its not an issue of any of our ISP's. Due to the fact that this only started for me 3 dyas ago, i'm hopeful that its only a software problem and not something else. Hopefully apple will a) ADMIT THEY HAVE A PROBLEM HERE and b) FIX IT.

Aluminum keyboard (USB, not wireless) intermittent problems

Since I got my new Mac Pro here at work, the keyboard has intermittently acted strangely. Occasionally, letter and number keys only will occasionally stop working in the current application. Arrows, function keys and modifier keys will continue to work. Even stranger, sometimes just a few keys will stop working. For example, today, the "h" key stopped working at one point, and the "a" key at another point.
The mouse that is plugged into the keyboard is unaffected. I don't think it is a hardware problem. Switching to a different application and switching back again will solve the problem temporarily. But it's causing me annoyance and typos. Updating the keyboard's firmware to the latest edition did not solve the problem. I've heard of others having this problem with wireless keyboards, but this is a USB keyboard.
Any ideas?

I have a related and extremely annoying issue:
- I've got an iPhone (8GB, first gen) with 2.1 firmware
- Mac Pro early 2008
- Aluminium Keyboard (standard)
- iTunes 8
Whenever I attach my iPhone, the keyboard goes dead. Totally. Only way to re-animate it is by unplugging the iPhone and wait 5 seconds, then re-plug the keyboard. This is on a newly created Admin account on the Mac Pro and an iPhone that has been through a total factory reset back to 2.1 today...
Ans a newly re-installed iTunes 8.
Note my iPhone is no longer recognized in iPhoto or Aperture or iTunes.
However, the iPhone works fine on a Mac Book Pro (newest model).
It does show up and sync on an iMac Intel 2.0 GHy, but kicks the Aluminum keyboard on that machine as well...
What is going on???
I will have to double-post this in iTunes and iPhone section, apologies in advance, but this is just too ridiculous...
Apple "Genius" in Apple Store Regent Street recommended an archive & install of Leopard 10.5.x. Yeah right. I am working on this machine, I have not got time for that silly idea...
The thing is, this all worked fine before the 2.0/2.1 update... but why is the bl oo dy thing working on a new MacBook Pro and not on my Mac Pro?

Ethernet/Wireless internet problems..This is Driving me CRAZY..please help!

Alright i hope someone out there can solve my problem because i am about to throw my macbook against the wall. This is my problem:
Everytime i go on to the internet, in order for the internet to work i have to pull my ethernet cable out of the plug, plug it back in and refresh the page. The internet then works for about 4 pages on avg. and then it times out and says im not connected. In order to continue surfing on the net i have to pull the cable out and plug it back in. The wireless acts the same way. It will work and then times out. I have to turn off the airport and back on to get any internet.
The browsers im using are Safari 3.1.2 and Firefox 3.0.1 and both act the same way. My roommate has a PC and has had no problems whatsoever. Our internet comes through the wall from a plug not from a router. I personally believe that it is my computer because i have tried getting internet from the plug in his room and the same thing happens. The wireless around my school comes from different towers and no matter where im at the same thing happens. I dont believe that its the internet. Ohh and one more piece of info. My first year at school my computer gave me NO internet problems whatsoever. I bought the computer brand new in June of 2007.
If anyone knows how to fix this extremely annoying problem, please help me!! Thanks to all who answer~

Hi
I'm getting a problem which may be related, and i've figured out some workarounds (sort of inadequate ones but at least they're something).
PROBLEM DESCRIPTION: almost immediately after installing the 10.5.5. system update, my MacBook started disconnecting itself from my wireless network. i'd be working online and suddenly i'd notice that only 3 bars of the AirPort icon on the menu bar would be showing and that the internet connection was no longer there. the only way to get the connection back would be to switch airport off and then back on and it would connect again. a couple of minutes later the connection would be gone again. infuriating stuff! i checked the system log using the Apple System Profiler (from the Apple menu) and found some messages about there being too many state changes detected on the AirPort network interface and that measures were being taken to fix stuff. it's a pity i didn't save the original error message since i no longer get it, but here's one I found that's identical reported by someone else:
May 25 16:50:57 phoebe mDNSResponder[22]: Note: Frequent transitions for interface en1
(FE80:0000:0000:0000:021E:C2FF:FEB9:8B73); network traffic reduction measures in effect
anyway, the "measures" seemed to be to simply disconnect me from the net, which wasn't great. now the forums mentioned various solutions, but none of them actually worked.
SOLUTION/WORKAROUND: two things seem to have made a difference. 1. i downloaded the combo 10.5.5. system updater and reinstalled it. somehow after i did this the problem would no longer happen (at least those errors would no longer occur). 2. keeping my ipod touch wireless interface switched off, because whenever my touch comes online within a minute or two the iBook disconnects from the net.
COMMENTS: (1) even now if i connect to the wireless network with my iPod, my MacBook's connection will drop - so my solution is to not connect to the wireless network with my iPod touch, which ***** because i like to read stuff in bed on the touch sometimes. (2) reinstalling the system update (the combo version) definitely helped, because before i kept getting that error message in the system log, and even if the iPod touch was switched off the MacBook would still disconnect. (3) this suggest that there were two separate problems, one to do with a corrupted AirPort driver or something of that sort (which was fixed when I reinstalled the system update), and another to do with being kicked off when the iPod touch connects to the wireless network (this problem remains).
I've replace my Linksys wireless router with a Netgear wireless router, but that's made no difference, so i'm pretty sure that the problem has to do with the MacBook - either the hardware or the software. I plan to get another hard disk soon at which point i'll do a clear reinstall of the OS, and if the problem persists then i'll know that it's a MacBook hardware problem. =(
i'll post again here in the future, but if anyone has comments or suggestions or reports of this kind of problem then your input would be highly appreciated.
thanx
dr.colekat

Wireless switch problem.

I have a Lenovo S10-3, and when ever I try to access the internet wirelessly It tells me that the wireless switch is turned off, And I have turned both the switch on the side on, and the switch (Fn+F5) on the keyboard on as well. Still I get the same message telling me that the wireless switch is turned off... Any suggestions? Any possibility that this isn't a hardware problem?

Hallo,
I'm currently having the same issue.
My hardware switch is set on but both in "Access Connecction" and "Fn+F5" it tells me that the switch is turned off.
I tried to updat the BIOS and the power management software but it didn't help.
Any other idea?
In "Access Connection" it tells me that to make sure that the switch is on and the bios setup is set to radio on.
How do i set the radio on in the BIOS?
Thank you,
Davide

New thinkpad hardware problem?

Hi,
My gf bought a thinkpad about 4 days ago, which came with windows 7 home. I promptly put windows 7 ultimate on it and installed all the drivers from lenovo support center.
Then just today, upon turning it on, the bios screen is flipped in the horrizontal plane (like if you look in the mirror) and extremely blurry. Windows is the same, everything flipped and blurry, making the writing unreadable. The mouse movements are also flipped.
So then i endure like 1 hour of being screamed at!!! because i **bleep**ed up her laptop! Yep, installing windows on it must be the culprit right?
Or is it more likely a hardware problem, since windows has nothing to do with the bios screen also being messed up...

Hi StoutBeer and welcome to the forum!
Please tell us which ThinkPad it is, specifically it's 7 character product number (looks like 2668-KHU), it can be found on the back sticker.
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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Intel AC7260 wireless hardware interrupt randomly

Hi,
My Intel AC7260 wireless hardware have someting wrong. It works fine until recently.
The bug occurs randomly, may be several hours. When that bug occurs, I have to reconnect my wifi or reboot my laptop to bring network back.
I check my kernel log, the most useful information like this:
2014-01-27 10:44:07 iwlwifi 0000 3:00.0: Error sending ADD_STA: time out after 2000ms.
2014-01-27 10:44:07 iwlwifi 0000 3:00.0: Current CMD queue read_ptr 125 write_ptr 126
2014-01-27 10:44:07 wlp3s0 HW problem - can not stop rx aggregation for 00:24:a5:d7:a1:d4 tid 1
2014-01-27 10:45:42 iwlwifi 0000 3:00.0: Error sending SCAN_REQUEST_CMD: time out after 2000ms.
2014-01-27 10:45:42 iwlwifi 0000 3:00.0: Current CMD queue read_ptr 125 write_ptr 127
2014-01-27 10:45:42 iwlwifi 0000 3:00.0: Scan failed! status 0x1 ret -110
2014-01-27 10:47:42 iwlwifi 0000 3:00.0: Error sending SCAN_REQUEST_CMD: time out after 2000ms.
2014-01-27 10:47:42 iwlwifi 0000 3:00.0: Current CMD queue read_ptr 125 write_ptr 128
2014-01-27 10:47:42 iwlwifi 0000 3:00.0: Scan failed! status 0x1 ret -110
I find a very similar problem as mine in this: http://www.spinics.net/lists/linux-wire … 14360.html
and this: https://bbs.archlinux.org/viewtopic.php?id=172184
My kernel is 3.12.9 x86_64
-------30 Jan EST Edit------------------------
after tracking the email subscrib, I find that this problem is caused by PCIe power management, and may be a kernel fix is developing.
the email subscrib is here
http://www.spinics.net/lists/linux-wire … 16482.html
Last edited by silenceleaf (2014-01-30 18:13:39)

I just update post, the kernel patch is here:
https://bugzilla.kernel.org/show_bug.cgi?id=64541

HP p6674y wireless adapter problems

hello. i'm trying to get my pc's wireless capabilities running but am having issues. i have tried a few things and am hoping you can direct me further. i can buy a wireless usb adapter but the pc comes with one so i am trying to use it first.
the physical card is a ralink rt 3090. on hp's driver download it suggested a different driver than the one linked to this particular card. the hp suggestion would not install and i found that i already had the driver installed that was recommended (netr28x.sys). when i look under 'device manager' in 'network adapters' only the 'realtek PCIe FE Family Controller' is there, not a wireless option. how can i make this happen? i have looked inside the computer and verified the actual existence of the card and have an antennae attached. any help or suggestions would be greatly appreciated. thank you.
kevin

Hi kca77,
Have you disabled the wireless adapter? It should appear in Device Manager within Network Adapters.
Do you have any Device Manager errors?
Try reseating the WIFI card on the mainboard.
Open Network and Sharing in Control Panel, open change adapter settings. Is the WIFI adapter listed?
You either: have a driver configuration issue or a hardware problem
Jaco
****I am not an HP employee****
Please give a" Kudos" if advice received is relevant or" Accept as Solution" if your problem has been solved.
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Win 7 Home Premium upgraded to Win 7 Pro.
HP ENVY 17t-j000 CTO Quad Edition Notebook. I7 4702mq
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T400 wireless hardware problems

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