0.7Mbps speed limit remotely, "Not available outside your network" with ports forwarded

Plex Media Server Remote Access
23

No need to buy a new router.
But instead of hoping for a fix, you might want to review your router configuration and home network setup, down to the remote access configuration within Plex (e.g. following the remote access troubleshooting).

RE: 0.7Mbps speed limit remotely, "Not available outside your network" with ports forwarded