Buffering outside my local network
Running a Mac mini (late 2012) on a Intel Core i5 2.5 GHz with 4 GB of memory / macOS Sierra version 10.12.6 / Issue: Buffering bad outside my local area, Wifi and other outside networks while connected to my ISP - Works great on my local network and WiFi through tablet and phone apps along with Apple TV and Amazon Fire stick while I'm at home. My ISP is Frontier / Verizon FiOs with great speeds of 120 up and 100 down. While I'm on the road (LTE)4G. I will que up a song, it'll play for 1- 2 minutes and buffer, 30 seconds later pick up where it left off and buffer all over again. I've Relocated entire mac mini - 6 TB Lacie external hard drive to my friends home "a different ISP" and works great! I have contacted Frontier and they are unable to find anything on their side, I will say they changed the port forwarding so the router has a direct port to PLEX. Hoping to get some positive input..If not, My next move would be to relocate server to another friend that has the same provider i do. A little peculiar how things have been working flawlessly since 2013 up until now ?!