iPhone 18.1 beta dropping signal frequently

[Treble]

Has anybody else on 18.1 beta had there signal keep dropping in and out and does turning rcs off solve it thanks ?

[Cryfreman]

I’m having the signal problems on the official 18.0.1 update. Anyone else? 

[Chris_B]

@Cryfreman  Have you checked THIS  and clicked the check service status?   Have you tried a network reset on the device?  

[Cryfreman]

Service is ok in my area, the 15 pro I just sent back on IOS 17.x  was full signal on 5g  with 300+ when checking its download speed.

This 16 pro max on 18.0.1 has payed havoc with the signal to the phone even swapping to SOS at one point. 
Tried a few things like network reset. I can sit and watch the full 5g slowly lose a bar signal, followed by changing to 4g low signal.