T400 wireless card help

Hi all,
My T400 lately has been having problems with its wireless. It used to just be that the computer would some times randomly drop me and say there were no connections nearby when I had been connected to my home internet for a few hours in a row. A restart would fix this.
However, in the last few days, it's been happening more and more frequently. If i hit Fn+F5, it would only show my bluetooth, but no option to activate my wireless antenna (it IS on btw). Checking the device manager, the wireless card is not visible, and some times upon hitting refresh and re-search for hardware, it shows up again, only to intermittantly drop out of visibility on the device manager again and back on.
My computer is less than 6 months old (got it in December), does anyone have any suggestions? Thanks in advance

go into your control panel, system, device manager and right click on the wireless card and select property.
Under the property page, select maximum power output, switch off any power saving feature and select roaming aggressiveness to low.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

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T400 wireless card

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here is the specs page for you computer.
http://support.apple.com/specs/powerbook/PowerBookG41GHz-867MHz.html
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Hi All,
I am just about beat with my Audigy2 Plat. card !!!!! .
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Blackbob wrote:
Hi All,I am just about beat with my Audigy2 Plat. card !!!!! . IT WORKS A TREAT ON IT'S OWN . but when I attatch my wireless PCI Card all hell breaks loose.My wireless card works great with a SoundBlaster Li've card,,,,,,,,,,,,,,,,,,,,,but not the Audigy 2.Device manager can't see any conflics.................... I have updated all drivers , but no luck. I have had "looking for ctgame.sys " messages ...................managed to find that file on the Installation Disk, but still it won't give me a break.....................just when you think you might be getting some where the mouse freezes and you have to reboot !!!!! What is it about the Audigy 2 ?I have a feeling it might be something to do with the Game Port ................... I don't wan't to play games !Please help.........CheersBlackbob
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I recently moved back to my parents house after living away at university for a year, since then they have changed the ISP from AOL Broadband to BT Infinity and I found my wireless card doesn't seem to be compatible. Whenever I turn my PC on I don't know if I'll be able to get an internet connection and if I do it'll only last about an hour, at which point it disconnects and won't reconnect until I restart my computer.
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Hi,
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TP-Link TL-WN951N Advance Wireless N PCI Adapter
TP-Link TL-ANT2405C 2.4Ghz 5dbi Indoor Omni-Directional Antenna
I bought the pair of these off Amazon for just under £30, so not the cheapest but they have worked well for me.
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Hello,
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This question was solved.
View Solution.

Since your interest is in upgrading to an802.11b\g\n wireless adapter then you simplest solution is to purchase a Type I, or Type II , or Type III Cardbus wireless card. You may have to look for that type of card in the preowned market.
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Best regards,
erico
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

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Yes, i run Digidesigns audio editing program called Protools on my Mac. It uses a PCI card to import mic/line audio signals into the program from the hardware interface. I tried moving the Digidesign card and putting the wireless card in the same slot, and still nothing, although the Digidesign card works fine in the other slots. Each time i moved the Digidesign card, it showed up in the different slots, although the ones that were open did not show up at all. Only the PCI slots that are in use show up in ASP on my machine. I have the FW-800 version of the G4, so im not sure if that makes any difference. I have never erased the PRAM before, would you be able to give me directions on how to do that? Thanks a ton for your help. =)
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Can you change T400 wireless network card??

I am eyeing a used T400 but it comes with an older a/g wireless card- Can I replace it with a newer draft-N pci-mini card internally? Will it integrate well? Any particular brand to use?

@ortegaluis,
Thanks. The question remains (in my little pea-brain anyway) is the card white-listed by MFGR and model, or does it have to be from Lenovo? That is, can I install an Intel 5100 from the local store, or do I have to order from big L?
@wp746911.
Apologies for hijacking your thread. I may be mis-reading it (wouldn't be the first time) but it would be too bad if you bought a card you couldn't use. BTW, I have swapped Intel 5100s and 5300s (from Lenovo) in and out of my T400 and it isn't that big a deal. Just read the manual and take your time
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
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Help InstallingT40 Wireless Card

I ordered a wireless card for my T40, and have no clue where to install it. ANy help?

You can also watch the movie!
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Jane
2015 X1 Carbon, ThinkPad Slate, T410s, X301, X200 Tablet, T60p, HP TouchPad, iPad Air 2, iPhone 5S, IdeaTab A2107A, Yoga Tablet, Yoga 3 Pro
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I AM one of those crazy ThinkPad zealots!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

KT4AV hates Wireless Card. NewB Help

Hey all. My computer runs to perfection up until I install a wireless network card (D-LINK G520 rev.b). After installation I can get an "excellent" connection to my wireless network but my computer runs like heck and locks up constantly. Sometimes everything runs smoothly. But the instant I run too many programs or download something... I'm asking for it. It's as if I can see the network activity in my mouse movements (i.e. mouse pointer jumps as network connection jumps).
My computer is a good 25-30 feet from the wireless router so I don't want to thread any ethernet cord over.
Any insight?? I would really appreciate the help as I'm about to bash my head in with computers (My other computer's motherboard is out on RMA).
here are my computer details to the best of my knowledge:
KT4AV MSI mobo, I haven't altered the bios... original/default version & settings
AMD Athlon XP 1500+
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Any ideas???
Thanks -> Mr_Self_Destruct
P.S. the fact that I made it to the end of this posting w/o a crash is remarkable!

Well there's a 400W PSU in my comp now and my computer is still running really rough. Real herky/jerky. I attempted to download something and the OS froze up almost immediately. So the PSU wasn't the solution.
And yes... I do have the latest drivers for this wireless card (just checked http://www.dlink.com).
Any further ideas??
As I said before... I can put in an ethernet cable and the comp runs fine. But I don't want to.
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Verizon Wireless installer for a wireless card not working. Help?

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Hi Eddie, and a warm welcome to the forums!
Not sure why it looks like that, I'd try this...
Not certain, but this can fix myriad problems...
Safe Boot from the HD, (holding Shift key down at bootup), it will try to repair your Disk Directory while the spinning radian is happening, so let it go, run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, then reboot & try to install.
Found this...
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http://discussions.apple.com/thread.jspa?messageID=8939370

Just got new T530 with wrong wireless card. Which model of Intel 6300?

Hey all, been surfing the google god for a few days but can't seem to find a secure answer that makes me happy. Just got a new T530 model 2359 laptop for my new job. Other then one stuck pixel that refuses to go away im pretty happy with it as I upgraded the CPU to the i5 3320 cpu model with the nvidia NVS 5400m GPU so it can power dual 24" monitors on my new Lenovo dock.
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http://www.amazon.com/Intel-6235AN-HMWWB-Centrino-Advanced-N-Bluetooth/dp/B007QXLIWI/ref=sr_1_3?s=el...
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@Fr0stTr0n...
You may wish to try the P/N that Z and Rich referenced here:
http://www-304.ibm.com/shop/americas/webapp/wcs/stores/servlet/default/PromotionDisplay?promoName=pa...
Regards.
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X1C3 Helix X220 X301 X200T T61p T60p Y3P • T520 T420 T510 T400 R400 T61 Y2P Y13
I am not a Lenovo employee.

Is my wireless card bad?

I have just spoken to Lenovo support and tried some things to resolve my wireless connectivity, but before I ship my computer back, which I really do not want to do, I thought I would ask for some help here...
I have a T510 running an Intel Centrino Ulimate-N 6300 wireless card. For quite a few weeks now, I have had problems with dropped internet connections. I first thought the problem was my internet connection or router, but I have ruled that out -- all my other computers and devices work fine -- I have concludede that there is something wrong with my laptop. This morning I remembered that I had a wireless-N usb adapter in a drawer, so pulled it, plugged it in and had immediate and fast interet connectivity, while the connection on my Ultimate-N 6300 is out. The problem with the Ultimate-N is that it is intermittent -- sometimes will not work at all, sometimes works for a little while, sometimes comes and goes within a matter of a few minutes. I have tried reinstalling the drivers and such with no luck. The Lenovo tech said he could not tell for sure and I would just have to send the machine in. Is there anything I can do to determine 'for sure' if this is indeed a hardware problem related to the card?
Thanks!

Hi couver,
Try this, launch ThinkVantage Power Manager -> Switch to Advanced mode -> Click Advanced Settings -> Scroll down and set "Maximum Performance" in "Wireless adapter settings" -> Press OK then exit. See this:- http://img824.imageshack.us/slideshow/webplayer.php?id=lenovo1.png
Further, go to the device manager, select your wifi card -> go to Properties -> and put "Transmit Power" to maximum, and "Roaming Aggressiveness" to "Highest". See this:- http://i52.tinypic.com/w02v0l.jpg
Let us know if this helps.
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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T430 with Intel Ultimate-N 6300 wireless card cannot see 5Ghz network

I have two machines with the exact same Intel 6300 AGN wireless cards. Both running Widowns 7 64-bit. Both have same versions of Intel drivers installed. The X230 sees and connects to my 5Ghz wireless network. The T430 sees only the 2.4Ghz network. The 5Ghz network is not even displayed in its list of available networks.
The T430 sees other 5Ghz networks in the neighborhood. Using inSSIDer I can see that the wifi card is functioning on the 5Ghz frequency as it displays 3 other nearby networks. But I have no way to test connection since those are not my networks and are secured (as is mine).
Windows also shows those neighboring 5Ghz networks in the list of available connections. Only my own 5Ghz network is absent from both lists.
Both my 2.4 and 5Ghz bands are broadcasing their SSID's. All MAC filtering is correct and both machines are allowed on the networks. The WPA keys are correct.
I have even copied the network settings from the working X230 using the "Copy this network profile to a USB flash drive" option from the wireless network properties window and added the 5Ghz network to the T430 using the USB key. So I know the settings are identical.
I ran Lenovo diagnostics Wireless Quick Test on both machines and got identical successfull results.
The only thing amusing about this issue is that the X230 wifi card was purchased from an eBay seller in China and that is the one that works. The card in T430 came with the laptop direct from Lenovo and that one has trouble. Both cards have Lenovo FRU numbers and clearly are whitelist approved since they both work. Just that the T430 card only sees the 2.4Ghz network.
I have assigned static IP addresses to both machines on the network.
I have rebooted the router.
I have run all Lenovo and Windows updates on both machines.
If anyone has further suggestions I woul really appreciate assistance.
Thank you.
Any suggestions would be appreciated.
.NET Software Developer
ThinkPad T440s (20AQ005TUS) | ThinkPad ThinkPad T430 (2342CTO) | Lenovo H430 (25582AU) | ThinkPad X230 (2306CTO)
Solved!
Go to Solution.

Thanks for posting your update. Glad your issue is resolved.
Please consider marking your own post as the solution as it may help other members of the community.
Regards.
English Community Deutsche Community Comunidad en Español Русскоязычное Сообщество
Community Resources: Participation Rules • Images in posts • Search (Advanced) • Private Messaging
PM requests for individual support are not answered. If a post solves your issue, please mark it so.
X1C3 Helix X220 X301 X200T T61p T60p Y3P • T520 T420 T510 T400 R400 T61 Y2P Y13
I am not a Lenovo employee.

T400 wireless card help

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