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| Test | Expected Result | Actual Result | Pass/Fail | |--------------------------|------------------------------------------|---------------|------------| | Firmware version match | V2.1.3_20241001 | [Fill] | [ ] | | PON/Internet connectivity| Sync + IP obtained via DHCP/PPPoE | [Fill] | [ ] | | LAN connectivity | Ping to gateway & internet | [Fill] | [ ] | | Wi-Fi (if applicable) | SSID broadcast, client connection | [Fill] | [ ] | | Config retention | VLAN, QoS, port forwarding restored | [Fill] | [ ] |
: A firmware update may reset your settings to factory defaults. Be prepared to re-enter your PPPoE credentials (username and password provided by your ISP) after the update. Security Patches : Recent updates for models like the SY-GPON-1110-WDONT
When a firmware update is initiated (either remotely or locally), the Syrotech modem follows a strict sequence to prevent "bricking" (rendering the device unusable):
Navigate to the Status or Statistics page to find your Model , Hardware Version , and current Software Version . 2. Download the Correct Firmware
| Issue | Likely Cause | Solution | |-------|--------------|----------| | “Firmware upgrade failed” | Wrong model file | Re-download correct firmware for exact model number. | | Modem not booting after update | Power loss during update | Use TFTP recovery method (see 3B). | | Wi-Fi disappears after update | New driver requires reset | Perform factory reset, then reconfigure Wi-Fi. | | No internet (LOS or PON light blinking) | ONU authentication lost | Re-enter your ISP’s LOID/SLID or serial number (under GPON Setup ). |
