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Studio 1555 fails to connect to visible wireless networks
I'm troubleshooting my Dad's Studio 1555 laptop (running windows 7 x64). According to device manager it has an "Intel WiFi Link 5100 AGN" adapter (driver v 14.3.2.1). The laptop has been able to connect to wireless networks in the past, and to our home network specifically, but a few weeks ago stopped being able to connect to any network. We have tried connecting to several networks, all of which work fine with other devices.
This is the presentation:
1. We see the wireless network and connect to it.
2. We connect to the network and enter the security key, and the connection prompt disappears.
3. A moment later windows prompt us: "Windows was unable to connect to (network name)". The intel wireless event viewer just says "Connection Attempt Fail"
I wasn't around, so I'm not sure if anything precipitated this. A few things I've checked:
- System and router reboot.
- Manually updated wireless drivers as specified by Dell and Intel (deleted and reinstalled device)
- Verified all required windows updates installed
- Full virus and malware checks (McaFee Internet Security, Malwarebytes, Spybot)
- Verified DHCP settings are correct.
- Verified router settings (but it doesn't work on other networks, so it's probably not that).
I have a lot of troubleshooting experience but this one has me stumped. I'd appreciate any tips people could give me. Thanks,
Matt