Vjerojatno zeza firewall u SE555. Probaj u postavkama uređaja isključit Access Control
(Advanced Settings - Firewall - Access Control na Off).
Nezaboravi snimit postavke i reboot uređaja
(Advanced Settings - Administration - Save & Restore - Save configuration) i
(Advanced Settings - Administration - Reboot).
Ako to ne pomogne, probaj firewall isključit kompletno.