Network signal losing frequently after updating my lumia 720 to 8.1

[anoop m]

I am using Lumia 720 device for 7 months and i loved to use it and it is great with 8 OS version.
And i updated os to 8.1 before 2 weeks and facing a severe issue. It is losing sim network range frequently and we have to search for networks manually once identify it. This is really annoying me since many of my friends not getting on time.

Please help me to get out of this :crying:

 

[mariusmuntean]

same happens here on 930. also with wifi, the coverage is much worse than on a wp8.0 device: 1520. I do not know what MS did but screw things up and seems that they do not hurry to fix this