LG G4 wifi and bluetooth not working after 6.0 update

We have 2 LG G4 phones on our plan and both phones have been showing major issues with wifi and bluetooth since the 6.0 update.

Wifi connection will drop without warning and when wifi is connected we get DNS errors or timeouts trying to use apps or view web pages in Chrome. Other devices in the same areas maintain wifi connections and are not receiving DNS errors. When we are on data or using the MicroCell with wifi off pages connect very quickly with no errors. The MicroCell is connected to the same router.

Bluetooth connections are also pretty much unusable on the G4s. Devices that have been connecting reliably (in-car bluetooth, portable speaker, headphones) start refusing to connect. Unpairing and re-pairing may be successful but doesn't last long. When the devices do connect the audio skips and garbles repeatedly. This is happening using multiple apps like Google play Music, Spotify, Google Maps Navigation, white noise app and music or videos stored on the phone. The bluetooth connection to my Android Wear watch is also unstable.

We've replaced both phones after visiting the Warranty Repair Center in person. They are telling us that these are known issues with the G4. They tested both phones on Monday (3/21/16) and let us know that they are failing their tests for bluetooth and wifi. They've offered to provide replacements again, but explained the replacements would have the software updates already installed.

We've spoken to Customer Care and the only other option that they have provided is to pay the remaining Next installments and choose a different phone.

Can anyone help connect us with someone from AT&T that may be able to provide better options? We have 6 lines on our plan and want to keep AT&T but these G4s are a dealbreaker.