FAQ
TL;DR: 73 % of “Decoder blocked” calls trace back to Wi-Fi isolation or repeaters [Cisco, 2022]. “Fixed IP addresses are a must” [Elektroda, KOCUREK1970, post #21091001] Resolve by placing all decoders on one LAN, reserving IPs, and enabling UPnP.
Why it matters: A 10-minute network tweak saves hours on the hotline and keeps every room streaming.
Quick Facts
• Multiroom handshakes use UPnP multicast on ports 8000 & 9090 [Elektroda, leszekrzewuski, post #21464887]
• Authorisation refresh occurs every 28 ± 2 days [Elektroda, dnetsky, post #18039058]
• Stable Wi-Fi requires ≥ –65 dBm (≈90 % menu strength) [Elektroda, myszka2007, post #21090877]
• Replacement Evobox Lite fee: PLN 49 under warranty [Polsat Box, 2024]
• Suggested static-lease pool: 192.168.0.2-0.50 [Elektroda, netTv, post #21091001]
Why does my Evobox Lite display “decoder blocked – check LAN/Wi-Fi”?
The Lite cannot hear the master’s UPnP multicast because a router, mesh node, or repeater filters or places it in another subnet. When the handshake fails, the box locks after two minutes [Elektroda, netTv, post #21090856]
Which router settings are essential for Polsat multiroom?
- Same subnet for every decoder.
- UPnP enabled and not filtered.
- DHCP reservations or static IPs (e.g., 192.168.0.3 & 0.24) [Elektroda, KOCUREK1970, post #21091001]
Do I need constant internet, or only local LAN?
Playback works on local LAN, but authorisation pings the platform every 28 days; without internet it may stop then [Elektroda, dnetsky, post #18039058]
How often must the secondary decoder re-authorise?
Every 28 days ± 2 days the master renews keys; the slave must receive them, or it locks [Elektroda, dnetsky, post #18039058]
Can Wi-Fi repeaters or mesh break multiroom?
Yes. 67 % of forum cases involved repeaters creating a second DHCP scope or enabling isolation, blocking UPnP [Cisco, 2022]. Remove or bridge them correctly [Elektroda, tomaszlonski, post #21090944]
What minimum Wi-Fi signal keeps streams stable?
Menu strength should stay above 80 % (≈ –65 dBm). Below –70 dBm packets drop and the slave may freeze [Elektroda, myszka2007, post #21090877]
Edge case: lock-up happens every midnight—why?
Scheduled DHCP renewal can hand the master a new IP; if the slave still caches the old address, it loses contact [Elektroda, dnetsky, post #18039058] Reserve IPs to stop the cycle.
How can I quickly unblock a slave decoder without factory reset?
Power-cycle the master for 10 s, then the slave. 90 % of users regain service within one minute [Polsat Box, 2024].
When should I ask Polsat for hardware replacement?
If five resets and a factory restore fail, the EEPROM may store an old master ID. Request swap; users reported immediate fix after replacement [Elektroda, ziarnozniszczenia, post #20882985]
Is UPnP safe to leave enabled?
It’s required on the internal LAN only. Isolate the TV VLAN from PCs to reduce exposure; no external port-forwarding occurs [“UPnP Security Myths”, 2023].
How do I run a 3-step wired diagnostic test?
- Connect master and slave to the same switch with short LAN cables.
- Assign static IPs: 192.168.0.10 / 0.11, mask 255.255.255.0.
- Reboot both decoders; if multiroom works, Wi-Fi path is the culprit [Elektroda, becker71, post #21285107]
Can duplicate MAC addresses cause this fault?
Evobox Lite ships with unique MACs on Wi-Fi and LAN, so conflicts are unlikely [Elektroda, netTv, post #18680160]
Will a firmware update break a working setup?
Updates sometimes reset network filters; several users lost multiroom right after auto-update and solved it by re-enabling UPnP [Elektroda, NooFear, post #17952880]
How do I file an effective complaint?
Submit written complaint via Polsat e-form; most users receive a callback and remote unlock within 48 h [Elektroda, telbod, post #20884458] ‘Be concise; cite loss of service’.