Signal strength very low after July 5th security update

My Nexus 6P has been working great and then comes along the July 5th update. Now my phone constantly shows no bars of signal when I am driving around (Via bluetooth on the car screen it shows battery and signal). I noticed that when I am home it also shows no bars for a second and then the bars go back to normal (around 3 or 4). Has anyone else noticed any strange signal issues after the update?