I am having the same problem, I have four different computers. I have an industrial D-Link Router that is configured properly and has the most up to date firmware so please do not give me a list of things to do with my Router. All of these computers only have have ONE common denomenator so by basic logic and troubleshooting I have limited it to Intel being the issue. All of them will have days where they connect fine and days where they will just decide not to. For instance Computer #1 is my laptop and I will connect just fine all morning at my home office but as soon as I get in the office it will no longer connect. Reboot, Disable, Re-Enable nothing works. Then tommorow it will work just fine. I am the IT Administrator for this office and have 10+ stations hooked up wirelessly to this specific access point with no problems. Minus the 4th computer on this list with Windows XP all of these have been purchased very recently.
1st Computer: Toshiba A665 with Intel(R) Centrino(R) Advanced-N - Windows 7 64bit
2nd Computer: Toshiba A645 with Intel(R) Centrino(R) Advanced-N - Windows 7 64bit
3rd Computer HP DV7 with Intel(R) Centrino(R) -N - Windows 7 64bit
4th Computer Dell do not have the model with me but it also has the Intel(R) Centrino(R) -N - Windows XP 32bit
The power setting on of these are set to maximium performance and none of them have any power save options enabled. I have updated all of these computers to the most up to date drivers and considering that Intel has pushed one just last month I am assuming there is issues with it that they are not publishing. I would like to know what these issues are and if Intel is coming up with a solution before I purchase any more laptops with there apparently faulty wireless hardware in them.
Note: Also as an added bonus today is one of those days that my laptop will not connect, however plugged in a Netgear USB wireless adpater and connected up no problem.
I have the same problem with my Toshiba Tecra M11 S3421 laptop. It usually disconnects once a day. Typically it's when I'm using Google Video Chat (or Skype on the occasions that I use it instead). I'm running window 7, 64 bit. I generally go to the device manager and roll back the driver to the previous version in order to get it to come back online. This works. I at one point stopped automatically updating the driver (thinking that the newer driver was the problem; however, it disconnected in this case as well. So then I updated the driver).
I have had this problem on 3 different wireless system (at home using my linksys router, at work on the wireless network there, and at another location that uses a Dlink). I have read that many other people have this problem and I am waiting on a solution.
Is there a permanent solution coming from Intel? It seems to be their issue.
I have an Alienware M17x R4. With the Intel(R) Centrino(R) Advanced-N 6250 AGN and I can't connect to my ASUS RT-N56U wirless router in 5-ghz or 2.4 in N band. It see it tell me to put in the network password tries to connect but fails. I have tried everything that everyone has said on this forum and others and still no luck. I have update both firmware on the router and the Intel device. Play around with all the setting and it still doesn't work, someone please help.
I just installed an Intel 6250 in my sony laptop, upgrading from a dead 4965 AGN. First thing I did when Win 7/64 found the hardware was go into the driver settings. Check the "Use 20 mhz Channel ONLY" setting first of all!!
Mine did not see my router @ 2.4ghz, but saw the 5ghz band. After changing the setting, it sees both.
i was having the same issue WIN8 64Bit. did everything i could think today.
finally tonight it was acting up again. i went into Network Connections > right clicked on Wi-Fi > Status > Properties > UNCHECKED Internet Protocol Version 6 (TCP/IPv6)
the adapter reset itself with the new settings and the activity came to life. has been solid ever since.
hope it helps.
I understand you have an issue with the Intel Centrino Advanced-N 6250 AGN adapter. Would you be so kind to provide the status of the device driver from device manager specifically when the issue happens? In order to get this information you may want to go to Device Manager in Control Panel, expand the Network adapter’s category and double click in the described adapter above; the general tab shows the Device status.
You may try further troubleshooting steps like the ones listed from the article linked below or the suggested steps provided by houhou1997 or perhaps update the router’s firmware. (You may need to contact the router's manufacturer.)
I had some what the same problem with my Wimax adapter, not working with my "Intel centrino 6250-N advanced /w WiMax", it was "missing" according to Windows. After a fresh install of Winodws7_x64 I could not install the proper driver from the dell resource CD. I tried all of the troubleshooting from Intel site and tried updated drivers from Dell, but no dice. But....
On my Alienware M14X R2 my bios was very out of date(A01) after a crossing-my-fingers bios update to version(A12) the Wimax driver automatically was detected and installed. Problem solved. A interesting resolution would have probably spent more hours on it if my bios wasnt so out of date.
You guys can try a bios update, much luck to ya