| ID | Description | Severity | |----|-------------|-----------| | | Device enters boot loop after 72+ hours of uptime when connected to specific upstream DSLAM models (Broadcom chipset) | High | | DSL-359 | Management web UI becomes unresponsive when NAT session table exceeds 80% capacity | Medium | | DSL-367 | IPv6 PD (Prefix Delegation) fails to renew after WAN reconnection, requiring manual reboot | Medium | | DSL-371 | Memory leak in the firewall connection tracking module under high UDP traffic | High |
To ensure your device has the latest available security and performance patches: ADSL2+ 1 Port Ethernet / USB Combo Router DSL-2520U dsl2520uz2 firmware hot