Can't connect to Wi-Fi after Lollipop upgrade

[Hayden1]

Since updating my D6503 to Lollipop 5.0.2 (Build 23.1.A.0.726) yesterday, I can't connect to my workplace's Wi-Fi anymore. I'm still able to connect to my home and public Wi-Fi networks.

My workplace network settings:

• WPA2 Enterprise
• EAP method: PEAP
• Phase 2 authentication: MSCHAPV2
• CA certificate: (Unspecified)
• DHCP server.

I am able to connect to this network using my credentials on other devices - but my Xperia Z2 just refuses to establish a connection. I've tried "forgetting" the network, restarting the phone (including in safe mode). No success.

Is anybody else having this problem? And is Google or Sony working on fixing this?

-- Hayden

[Qatrium]

I'm not an expert in WiFi security settings, but if you open your WiFi settings page and tap on the 3 dots on the top right corner, go to Advanced, you'll find some settings to play with. Can you try for example "Auto IP support" on?

[Hayden1]

Auto IP support = Off (attempted to connect when "On" but this was not successful)

Passpoint = Off

Keep Wi-Fi on during sleep = Always

The phone attempts to connect to the network and it says 'Connecting' under the network name. Eventually it just times out; no error messages appear.

[Hampus]

Hi,

Do you have the possibility to restart the router? Just to see if this simple thing can help. Have you tried to add/connect to the network manually via Settings > Wi-Fi > Menu button (three dots) > Add network.

[Hayden1]

Unfortunately I can't restart the router - it's a large company and the routers are hidden and managed by an external vendor. I had no issues connecting with KitKat installed, nobody else in my office is having issues now.

Thanks for the suggestion. I've tried to add the network manually, but the same issue occurs. Some forums suggest changing the network to 5GHz only, but Sony seem to have disabled this option from their build.

Is anyone else having the same issue?

[FuzzyIan]

My experience has been that Lollipop is a lot more stable that KitKat for WiFi connectivity on my Z2.

Under KitKat, my phone would spontaneously disconnect from the office WiFi network at least once a week.  I would need to toggle WiFi off/on on the phone to get it to connect again.  That hasn't happened (yet...) on Lollipop.