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Evobox Lite Multiroom Decoder Blocked: Troubleshoot LAN, WiFi & Main Evobox HD Connections

NooFear 153294 43
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Why does my Evobox Lite multiroom decoder keep getting blocked and failing to see the main Evobox HD on the network, even after resets and changing routers?

Your Evobox Lite is usually blocked because the master decoder’s UPnP/multicast messages are being filtered or the lite ends up on a different subnet, so the two boxes no longer see each other [#21090856][#21466355] Check the router/AP for client isolation, multicast filtering, and make sure UPnP is enabled and passed through end-to-end [#21090856][#21466355] Remove or bypass Wi‑Fi repeaters/extenders if possible, because they often create a separate subnet and trigger the lockout; tests with both decoders on one switch or direct LAN cable worked reliably [#21092934][#21157129] A practical fix reported by users is to give both decoders fixed IPs or DHCP reservations in the router and, if needed, reset the decoders before re-adding them [#21091001][#21285107][#21450059] The most stable setup is to keep both decoders on the same transparent network segment, not through a repeater or a second router doing its own DHCP [#21285107][#21450059]
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  • #1 17952880
    NooFear
    Level 12  
    I have three set-top boxes in CP. One main evobox hd and two multiroom evobox lite. On one decoder there is a message that the decoder has been blocked and to check the LAN WiFi connection with the main decoder. Second same decoder and master decoder work fine. I hung for hours on the hotline, did factory resets, did a hotline reset and told me to wait 3 to 6 hours and then the same. I changed the Wi-Fi router to another one and logged all decoders on it and this one is still blocked and it says that it does not see the main decoder in the network. I replaced the set-top box with a new one at CP and it was ok for a while, the TV was playing, but it did updates itself again and it locked again. Overall, the problem started when the decoder updated itself. The other decoder that works does not update. I have no idea where the cause is anymore. Does anyone have the same problem as what to do?
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  • #2 17953082
    bumble
    Level 40  
    Cp decoders are generally crap. I have already mentioned three times. And this is a problem for me because I'm in the UK. Its proper functioning probably lies with Polsat. Write an email that your cultures don't work and that you won't pay because you don't have a service available. Bring it to the point, let it check and replace it until it is successful. Update the other two decoders. The main one - maybe there is a reason with the update, it also appeared on the main one at the same time and you are updating only one.
  • #3 18039058
    dnetsky
    Level 11  
    The problem lies in finding the main DECODER in the LAN network - the main DECODER, when added to the LAN network, captures the IP address from the ROUTER, the same additional DECODER, but as I add both, the ROUTER does not see the main DECODER, and so every 28 days over and over again.

    The solution is to connect both to one SWITCH - releasing the LAN configuration and resetting both DECODERS. Both decoders run on the latest firmware.
    The question is only for men from CP - how long do they intend to tolerate such a situation, because it is much more convenient to find a problem and eliminate it than to answer thousands of calls from frustrated customers.
    Authorization should be released after the converter itself, because what if I do not have internet at home?
  • #4 18039270
    bumble
    Level 40  
    I have the old 5500, so I put my cards back. I thought it was a direct connection and you don't need internet.
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  • #5 18194457
    toporczyk
    Level 2  
    It is a bit different for me - the main one is connected to wi-fi and works, the additional one does not want to connect to the same network via wi-fi. It connects to another network (e.g. a hot spot from a phone) without any problems.
  • #6 18673594
    radmur1979
    Level 9  
    I have the same as above. Did the problem go away and how did you get rid of it?
  • #7 18674365
    Prof. SpecMiernik
    Level 27  
    Maybe the CP gamers forgot that each decoder should have a different MAC and there is a conflict.
    Connect to the test over the cable - the "twisted pair" of the property does not cost.
    You can still put some AP and see - preferably one that masks the MAC.
  • #8 18680160
    netTv
    Level 32  
    Check first if your theory is valid in practice. Each Evobox Lite decoder has a different mac on the wi-fi and LAN interface.
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  • #9 18680191
    bumble
    Level 40  
    But it's CP. They have a hotline and technical support.
  • #10 18683506
    radmur1979
    Level 9  
    It was the first thing I did. But how much can you listen to the same and bring no positive effect :cunning:
  • #11 19036406
    żaróweczka
    Level 12  
    I have the same problem, the main Evobox hd sees the wi-fi router and the Evobox lite 3 pieces at home do not find the router. Technical support does not contribute anything, resets and they say that when the main one sees, the rest should also. Fortunately, they haven't called hotspot authorization yet, from tele he can see. Anyone solved such a problem?
  • #12 20882985
    ziarnozniszczenia
    Level 8  

    If anyone is looking for an answer to this problem, I'll give it to you.
    When returning to the factory settings of the decoders does not help and you have made five ineffective calls to Customer Service, you should replace the multiroom decoder because it has remembered the old decoder as the mother and will not let you go 😁
  • #13 20884458
    telbod
    Level 32  
    The solution to this problem is to write a COMPLAINT. Usually, within 48 hours you get a call that the problem has been magically solved and they ask you to turn on the decoders. And they no longer have to be in the same network... and they don`t have to "see" each other... they work "magically". Of course, this does not solve the cause of the problem. He knows the cause of CP very well. So either replace the decoders until they are finished, or write a complaint,,,
  • #14 21076017
    myszka2007
    Level 9  

    Can you provide details, i.e. whether in writing by post, on the internet or at a Polsat outlet. And what arguments did you use that so miraculously everything started working correctly. I have had this problem since the first day I switched to their platform and it is killing me, I would not recommend Polsat to my worst enemy
  • #15 21076391
    netTv
    Level 32  
    The basic question is are all decoders connected to the same router?
  • #16 21076685
    myszka2007
    Level 9  

    I have only one router, everything is connected correctly because a while before it was working on the same cables c+, decoders were checked, reset, set, changed, again restored to factory settings and replaced several times, added a wifi amplifier, etc, etc, but when the wifi signal disappears it disappears, and not every day after 10 pm goes the info bar that in a moment (2 minutes) will be disconnected. I think someone is clearly involved.
  • #17 21077319
    tomaszlonski
    Level 38  
    Wifi amplifiers ( probably a simple repeater ) get rid of them straight away, they usually create a new subnet and there are problems because of them.
    All tuners must be on the same network.

    The best way is to do a test in one room connect all tuners to one TV and check how the ones in the multi-room work. If they work properly and when moved to another location then the network is to blame.
  • #18 21081932
    Jabeko
    Level 19  
    As above. All decoders must be on the same network. Here is the problem.
  • #19 21083786
    tomaszlonski
    Level 38  
    It is clear that there is a problem, only whether the user has any idea that he is creating it himself.
    For some, connecting a repeater or other connection via another router to the network is always the same network. Usually it is not the same network, but a different subnet because the user has no idea how to configure it correctly.
  • #20 21089944
    myszka2007
    Level 9  

    Phew. I will write again because I see that you do not get everything is in one network. The amplifier was added because the problem already existed. Now it helps only the main decoder from the power and on the second one the reception returns. At least I do not have to enter the network password each time. BUT THIS DOES NOT SOLVE THE PROBLEM WHICH IS FROM THE VERY FIRST CONNECTION TO ONE NETWORK, WITHOUT AMPLIFIER, THE SAME.
  • #21 21089986
    netTv
    Level 32  
    Specifically, state the models of the network devices you have installed.
    What IP address does the main decoder have, and what IP address does the decoder with which there is a problem have?
    Do both decoders connect to the same wifi network with the same name?
  • #22 21090850
    myszka2007
    Level 9  
    main decoder EVOBOX PVR AND multiroom EVOBOX LITE both decoders connect to the same network with the same name .
    I cannot find the decoder IP in the menu.
  • #23 21090856
    netTv
    Level 32  
    You can read the IP address in the menu Settings => Diagnostics => Network connection status => IP address
    The problem is that one of the network devices is blocking network messages sent by the main decoder therefore it is not detected by the secondary decoder.
    Maybe in the wifi configuration the option of isolation between devices connected to the access point is enabled.
  • #24 21090866
    myszka2007
    Level 9  

    EVOBOX LITE (MULTIROOM) 192.168.0.24
    PRV MAIN 192.168.0.3
  • #25 21090874
    netTv
    Level 32  
    What model of router and wifi amplifier do you have ?
    Check in menu Settings => Diagnostics => Network connection status
    How is the wifi signal strength shown in % and (dBm)on the Evobox PVR decoder and on the Evobox Lite ?
    I ask again about the model of router you are using and the wifi signal amplifier ?
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  • #26 21090877
    myszka2007
    Level 9  

    The router is a D-LINK DIR-825 and the amplifier is some Chinese thing called MI.


    Added after 2 [minutes]:


    Signal strength usually 90%, sometimes 80% on both.


    Signal strength usually 90%, sometimes 80% on both.
  • #27 21090903
    netTv
    Level 32  
    Swap the Evobox Lite decoders in place and see if the problem transfers with the decoder.
  • #28 21090905
    myszka2007
    Level 9  
    Ok I'll try it, I thought about it , we'll see.
  • #29 21090944
    tomaszlonski
    Level 38  
    And knock out that repeater, usually the repeater creates a subnet. Even if the repeater supports DHCP of the router there can also be problems with reception, @netTv wrote about it.

    For the test it's best to connect both tuners directly via LAN cable (internet is not needed) , you can also use internet to connect both tuners via cables to the switch. In such configurations, there is usually a 100% certainty of proper multi-room operation.
  • #30 21091001
    KOCUREK1970
    Network and Internet specialist  
    @myszka2007
    The solution to the problem, which 99% of the time results, is in the router in the DHCP LAN section, give each decoder a static IP.
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Topic summary

✨ The discussion addresses the issue of multiroom Evobox Lite decoders being blocked due to failure in detecting the main Evobox HD decoder over LAN or Wi-Fi networks. The problem often arises after firmware updates and manifests as the secondary decoders not seeing the main decoder, resulting in a locked status. Common causes include network segmentation caused by Wi-Fi repeaters or amplifiers creating separate subnets, multicast or UPnP filtering on routers or switches, DHCP conflicts, and MAC address conflicts. Solutions recommended include ensuring all decoders are on the same IP subnet and network segment, disabling DHCP on secondary routers or using mesh systems (e.g., Asus AiMesh) to maintain a unified network, assigning static IP addresses to decoders, connecting decoders via Ethernet cables or through a single switch to avoid network isolation, and verifying that UPnP is enabled and not filtered. Some users report that replacing multiroom decoders or filing complaints with the service provider (CP/Polsat) can lead to remote resolution. Testing by swapping decoders or removing Wi-Fi repeaters often helps isolate the issue. Network diagnostics via decoder menus and tools like Wireshark are suggested to analyze multicast traffic. Overall, stable multiroom operation requires transparent network communication without subnet isolation or multicast blocking.
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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?

  1. Same subnet for every decoder.
  2. UPnP enabled and not filtered.
  3. 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]

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?

  1. Connect master and slave to the same switch with short LAN cables.
  2. Assign static IPs: 192.168.0.10 / 0.11, mask 255.255.255.0.
  3. Reboot both decoders; if multiroom works, Wi-Fi path is the culprit [Elektroda, becker71, post #21285107]

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’.
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