Share your experience!
Phone - Xperia M5, with latest firmware.
I have issues with the wi-fi module. It periodically switche off, as if the network lose or no open websites, as long as I do not disable and re-activate wi-fi again.
I think the problem in the processor MTK Helio x10 and firmware as well as phones with this processor have a lot of complaints in the network.
Will this problem be fixed in a future update firmware?
P.S. And network on my M5 worse than on z3c or z5 which I have 
Sorry for my bad english.
Best regards,
Anar.
You might want to contact your Local support to get your device inspected, you can also try this
Settings > about phone > diagnostics > test > test WiFi or test it in >>> safe mode