I've had several problems with the 5.0 update since it rolled out. The first (which has been addressed recently) is that :
Even email links won't work properly and half the time crashes the app when it tries to open it.
The second is all my radio communications (Data for calls only, WiFi, and Bluetooth) are all having connection issues:
Why am I having so much trouble with this phone? I've already reset it to factory settings and it is still not remedied, especially the latter symptoms.
Hate to tell you, but welcome to the- I got hosed by the lollipop update-
Tons of people, on multiple devices are having some of the exact same issues your describing here.
Some people have said that wiping the cache has helped with some of your issues. Others have pointed out to shut your phone down for a full 5-10 minutes, then once you reboot to just let it set for 30 minutes to let it settle.
*None of which have helped me, but maybe it will for you.
No one really has an answer except wait it out for 5.1