I use Intel My WiFi software on my laptop with an Intel WiFi Link 5100 AGN wireless adapter to create a virtual hotspot. When an 802.11g device connects to it, everything is fine. But when a client device uses 802.11n, everything is fine until some traffic-intense activity (e.g. a file transfer or a Web browsing session) is attempted by the client. At this point an 80% or so packet loss begins and remains until I disconnect and reconnect the client device. After this the pattern repeats.
The problem affects another laptop (with an Atheros AR9285 adapter) and an HTC Desire smart phone. When I start a virtual hotspot (using "netsh wlan start hostednetwork" command line) on the other laptop, and connect the first one (with the 5100 AGN) to it as a client, they work fine in 802.11n mode (at 65 Mbps). But I need the one with the Intel adapter to be the hotspot, and even if I use the command line instead of Intel My WiFi on it, the problem remains.
It seems that the 5100 AGN adapter cannot properly operate as a virtual access point in 802.11n mode. I've updated the driver to to the latest one (13.5.0, 03/04/2011), but it didn't help. The OS is Windows 7 Ultimate.
Is there any way to solve this?
I have exactly same problem. In my case it is 5100 AGN + broadcom 802.11n adapter (another notebook). It connects just fine, but when I start to copy file via network packet loss becomes 100% and it stops working at all. Windows 7 x64 both ends, latest drivers both ends. I have another important addition. When I reconnect broadcomm adapter, it does not help to restore connection. I have to reset it (broadcomm). Then it connects fine again (one single time). If I reconnect intel adapter - this does not help.
Can you open an issue for this to be fixed? Two cases makes an issue, right?
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Thank you for your patience and understanding.
I haven't heard from them ever since. Maybe you shoud submit your own request, so that they know it's not a one-off issue.
P.S. I use an Ad Hoc network as a workaround, but at the sacrifice of speed (an ad hoc connection runs 11g, at least in my case).