Issue connecting 5.0Ghz using Z3

[Adol]

Hi Sony Support and Z3 Users,

I need some help and clarification. I just got a brand new Dual-band modem that has 2.4Hz and 5Hz wireless connection.

I was able to connect to 2.4GHz for Z Ultra, Z3 Tablet Compact and Z3 but my Z3 is the only one cannot connect to 5GHz. Can I check what happened? Does anyone having the same problem like me with Z3. Is it firmware problem or hardware issue? My Z Ultra and Z3 Table Compact didn't have any problem with 5GHz so may I know what caused my Z3 refused to accept the 5GHz. Hope to receive your inputs.

Thanks

[Phy]

Boot on safe mode and try to connect to the 5GHz band.

[Phy]

How to boot on safe mode.

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[stockyvillage]

Adol does your dual band router have separate SSID for 2.4ghz and 5ghz or is it auto mode?If you have 2 SSID that broadcast indivually connect to 5Ghz manually.If not it is down to router to decide what frequency

[Adol]

Have two SSID for 2.4GHz and 5.0GHz. Both worked perferly well on Z ultra x2 and Z3 Tablet Compact. As for Z3, ok for 2.4GHz and can detect 5.0Hz SSID but cannot connect to it. Strange.

[Adol]

cannot connect to 5GHz at safe mode. Thanks.

[stockyvillage]

Adol what router do you have.eg.make,model

[KiVa]

Hi,

I have the same problem with my Z3 Dual (D6633).

I have a Netgear WNDR3700 Dual Band Router (award winning).

Beside me I have an Acer Laptop with built-in Dualband connected to 5GHz and also a stationary PC with USB dongle dualband connected to 5 GHz. No difference moving the Z3 close to the router.

I have seperate SSID for 2,4 and 5 GHZ.

Booting into safe mode shows that 5GHz now available, saved and using WPA - but it won't connect. While in safe mode i tried connecting to 2,4 GHz with no problem - but then 5GHZ now shows "Not within reach" - as it does in Normal boot mode.

Apparently when I started up the Z3 for the very first time (2 month ago) I was able to connect to 5Ghz as I have filled in Password and saved this connection.

If this problem appeared before or after the newly firmware update - I cannot tell. I just saw this tread and checked the phone - just to dicover that I was not connected to 5 Ghz as I thougt I was.

Regards

Kim

[stockyvillage]

Try doing s hard reset on your router. That will set it back to factory settings

[KiVa]

Hi,

I did that just before writing previous post.

There's nothing that points a flaw in the router unless the other guy has excatly the same router with same firmware updated.

We'll see if he tell us the brand of his router.