[Q] CM 12 connectivity issues on Verizon 3G topic

I have the N6 running the latest CM12 and everything works great on Verizon as long as I am in a 4G LTE area. As soon as I leave 4G area I get a data roaming message and exclamation mark on my Verizon signal status bar. I have confirmed that stock rom will switch from 4G to 3G no problem but CM 12. I have looked into confirming APN settings but for some reason there is no 'APN settings' under the mobile networks settings fir me to confirm. I am just wondering if this is a common issue with CM 12 or just me. I was unable to find a thread on this so forgive me if this is a duplicate. Thanks.