8x8 Network Utility Tool (Edge VERIFIED)

Avoid running the test over Wi-Fi, as wireless interference can skew the results.

| Test Failure | Likely Cause | Suggested Action | |--------------|--------------|------------------| | UDP port 5060 blocked | Firewall / ISP | Whitelist 8x8 IP ranges & ports | | High jitter | Bufferbloat / Wi-Fi | Enable QoS, switch to wired | | Packet loss at hop 2 | Local switch or router | Check cabling, reboot network gear | | DNS failure | Internal DNS | Use 8.8.8.8 or 1.1.1.1 as secondary DNS | 8x8 network utility tool