[Solved] Nexus 4, Lollipop 5.1 WiFi Issue

Tamir Asks: Nexus 4, Lollipop 5.1 WiFi Issue
My Nexus 4 device stopped connecting to the Cisco router at work for some reason. I thought it was because the upgrade to lollipop 5.0 (had Kit-Kat before) but I’m not so sure anymore.

I tried:

  • Restart the device
  • Restart the device with safe mode
  • Restart the router
  • Change the device WiFi frequency settings
  • Use static IP at the advance WiFi connection configuration
  • Forget the router AP and reconnect
  • Factory reset trough the device settings, recovery mode and complete flashing the Android Lollipop 5.1 factory image.

After factory reset I had the connection possible until restarting the device. I checked with/without signing in, nothing new installed, didn’t visit the store, just super clean phone – I could connect the network. after restarting the phone I can no longer connect which means it’s not an application issue.

Some facts:

  • I can connect other Cisco routers at work
  • Another Nexus 4 after factory reset connects with no trouble

About the device:

  • Nexus 4
  • Lollipop 5.1
  • build number LMY470
  • kernel version 3.4.0-perf-gf75bb4f

Any suggestion will be welcome, please let me know if I can provide more details.

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