XA1 Ultra keeps rebooting when connecting to my home wifi

[Softouch]

Hi,  I just bought Xperia XA1 Ultra 2 days ago. When I went home to setup my home WiFi, the phone started rebooting continuously. I have to force close by pressing power & up volume button.

Being a new handset I just purchased,  I went back to the shop.

When they connect their WiFi there, there's no issue of the rebooting and they set up the phone for me. 

But once I get back home and do the connection with my home WiFi, the rebooting started again.

I'm so frustrated with this that I can't prove the phone having problems with the shop and I have to use my phone's data plan for online services. 

Can anyone assist me with this issue? 

Thanks. 

[Uliwooly]

@Softouch

Just to make sure, it only restart with your home router?

[Softouch]

Yes, that's right. Which doesn't makes sense. I tried using my other mobile phone as Hotspot WiFi. XA1 Ultra connects just fine without rebooting. 

I tried switching off and on my home router but to no avail. The problem persist when I connect to the home WiFi. 

[Uliwooly]

@Softouch

That's rather odd, what if you repair the phone with XC >>> Xperia Companion and do NOT restore anything, just test it for few minutes. 

[Softouch]

It's still the same. I've tried repairing but the problem still persists. 

[Uliwooly]

@Softouch

you should contact your Local support to get it inspected.

[Softouch]

Just an update on my issue: today the new update for my phone came out and after updating it, the WiFi is working fine now. Thus the problem lies with the earlier version of the software. 

[Uliwooly]

@Softouch

Glad to hear