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Multicast Stops Working until Phone Rebooted
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Blake1 Offline
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Post: #9
RE: Multicast Stops Working until Phone Rebooted
(07-27-2022 02:51 AM)jmonroe Wrote:  Hello! We are having this issue and were wondering if you had a solution to the problem?

For some switches, using multicast address 224.0.0.X tricks the switch into always flooding to all ports (for Dell Powerconnect I know this works, not sure about other models/vendors). But in some cases, you need to disable "IGMP Snooping" or enable "Flood unknown multicast" (Meraki) on the switch. On HP Procurve you can either just disable the IGMP feature altogether or statically add the multicast address to the IGMP group list on the VLAN where the phones are: https://techhub.hpe.com/eginfolib/networ...01s03.html

I do have a ticket open with Yealink for this, seeing if we can add an "IGMP Join Refresh" feature where we can rebroadcast the IGMP join periodically without rebooting the phone.
08-17-2022 09:55 PM
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RE: Multicast Stops Working until Phone Rebooted - Blake1 - 08-17-2022 09:55 PM

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