When I boot, network operates as intended, when left for an extended period of time (12-24 hours+) I can't get a reliable network/internet connection when I return to the computer. I initially thought it was an issue with fail2ban being set to infinite ban time so I scrubbed all bans and changed it to 10 days but that didn't solve it. It's not an internet problem because other devices on the network operate as intended and the problem is solved by rebooting. This is also causing issues with Plex for obvious reasons.

When it's happening the bandwidth can be restricted to as little as 0kbps up to 500-600kbps. Could this be a network manager issue?