Xperia Blog submitted a new resource: Xperia Z3+ Dual_E6533_32.2.A.5.11_Malaysia_Generic - Sony Xperia Z3+ Dual (E6533) Android 6.0.1 firmware - Generic Malaysia Read more about this resource...
We have just tried it and it seems to be working fine on our end. Are there any DNS issues with your ISP?
Thanks for the comment. Don't know about DNS, but I use OpenDNS, which is usually OK! In fact I solved the problem via another site. All now up and working well, rooted, TA restored. The only thing I've forgotten is including Xposed so I can use Amplify etc.