"Rebuffering Stream/Opening URL" Whilst listening to podcasts
I've listened to podcasts via iTunes for over a year now on my macbook air. As of a few days ago, iTunes will only play 10-30 seconds of a podcast before it freezes and a "rebuffering stream / opening URL" notice pops up. No matter how long I wait, the podcast doesn't resume so I have to manually press "stop" on the notice and try to play the podcast again.
-The podcasts I listen to aren't downloaded: I tried to download one now, and it will start, but never finishes
-My iTunes is up to date (as is my mac software)
-I cleared my iTunes cache
-I have memory space on my computer/my mac typically runs smoothly and quickly
-I've tried disconnecting and reconnecting to my wifi
-I've tried restarting iTunes and logging in and out of my iTunes account
-I've tried restarting my computer
Please help! This is so frustrating and I can't find a solution online. Thank you!
MacBook Air (13-inch Mid 2013), macOS Sierra (10.12.3)