Iphone 5s suddenly low signal

[mtx4]

Since few days the reception of my iphone 5s shows a strange behavior.
When I'm at home the lte signal is not stable, in about 30s or 1 minute it can change between 1 and 4 notches, and the average is 2, when in the last year was always 4. This is not normal, the reception can fluctuate but not so much!
This happen only at my home, however around the city the signal is stable but not strong as I remember, is a bit weaker.
Everything is fine with 3G and EDGE, so what is wrong?
Please give me some opinions. Thanks

 

[mtx4]

UP, modified.

 

[ericwn]

It doesn't sound as if the phone has a problem. It sounds as if the network provider is fiddling around with their network.

 

[senrab]

Since few days the reception of my iphone 5s shows a strange behavior.
When I'm at home the lte signal is not stable, in about 30s or 1 minute it can change between 1 and 4 notches, and the average is 2, when in the last year was always 4. This is not normal, the reception can fluctuate but not so much!
This happen only at my home, however around the city the signal is stable but not strong as I remember, is a bit weaker.
Everything is fine with 3G and EDGE, so what is wrong?
Please give me some opinions. Thanks

Are you on AT&T? I have been having similar problems with my 6s. Mostly 1 or 2 bars, even outside. I am missing calls completely (I'll get a voicemail notification an hour after someone called - phone never rings). This has been happening to me for the last few months or so.