Rift

1. Open TCP ports 6520 through 6540 for all network traffic related to the game.
2. Whitelist the following IP ranges:
   1. 193.105.173.0/24 (EU servers)
   2. 208.94.26.0/24
   3. 208.94.27.0/24 (NA servers)

Sources:

• TCP ports: GLYPH Support Center - Firewall and Router Configuration
• IP ranges: GLYPH Support Center - Error 2016

GLYPH Support Center - How to run network tests
GLYPH Support Center - Minimum System Requirements for playing RIFT
GLYPH Support Center - Supported and Unsupported Video Cards