Wifi signal dropping

[Sam38]

My z5 dual wifi works fine with router but when I connects it to my other mobile lyf flame 5 it drops wifi on hotspot
I tried ota update factor reset and hardware check by workshop but problem is still there

[Uliwooly]

@Sam38

I'm a bit confused, are you saying that WiFi stops working when you enable Hotspot? if so, that's how it's supposed to work

[Sam38]

Hot spot enabled on my lyf flame 5 the other mobile and z5 connected via wifi but wifi keeps stopping

Wifi notification goes and than reappear and than goes

[Uliwooly]

@Sam38

Ok, could you test the hotspot with a different device, also, forget and add the hotspot again. 

[Jake-SonyXperia]

Hi Sam38,

Welcome to the community,

It may also be a good idea to contact the manufacturer of the device that is providing the Hotspot, as this seems more Hotspot device orientated.

[Sam38 · Accepted solution]

For me also it looks like compatibility issue

Thnx

[Jake-SonyXperia]

No worries glad we could help

[Sam38]

Yup
After reset I contacted to local technician and he said only z3 and z5 have this issue
It's a hardware compatibility issue

[AlexandruRai]

I have a Z5 compact and my friend an Z3+ only on android 6 the signal is broken even often 4g (LTE) mostly and wi-fi. On android 5.1.1  and 5.0.1 there are no problems at all! We did a downgrade after the automatic system upgrade to 6. Bad upgrades regarding also the sound quality and camera's (the quality is better on factory generic firmwares)!

I hope this helps!

[AMCA]

I have messed around with this for months. I have been through two sets of Xperia Z5Dual and it is the same. From what I have read it is a problem in Android 6.0. Google might have fixed the problem in stock android but Sony haven't got around to pushing out a fix...

Anyway I have found that the phone's connection is much more stable on previous iterations of the WIFI standard. The modem/router provided by my ISP will only operatin in 802.11AC, so I went out and bought a second hand 802.11N AP just to user for my phone (http://www.netgear.com/home/products/networking/wifi-routers/WNR1000.aspx?cid=wmt_netgear_organic).

It is kind of stupid hack to have to set-up a WIFI network just for my phone but a US$15 router beats replacing a US$600 phone...