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Forum Discussion
CH-Hawaii
May 18, 2019Aspirant
Intermittent DLNA service to televisions
I am having intermittent service to my TV's, using hardwired CAT5, with DLNA service from ReadyNAS and Synology media server. I don't know where to look or who to ask for a possible solution. NetGe...
- May 19, 2019
Hi Chris,
IGMP snooping is unlikley the cluprit ... more likely the "Block Unknown Multicast Address" which network admins often tend to tick when IGMP Snooping is enabled.
More and more ISP are offering IPTV, so there is no way around having light managed switches, and a properly working IGMP Multicast snooping - otherwise all switch ports and radio interfaces are flooded with multicast (e.g. live TV) traffic.
-Kurt
CH-Hawaii
May 18, 2019Aspirant
Yes and no.
Yes it happens on ALL the TV's.
Yes I noticed it after I changed the switch.
Yes it happens with both NAS units.
Additionally, it never happens when displaying video on my PC's or MAC machines.
As far as changes, my older router NetGear WNDR4500 just burned its power cord connection so it was replaced with an ARLO router. However I was having the same problem with the WNDR4500 and replacing it with the ARLO didn't make a change.
I have added devices to the ports of the JGS524e switch. So it is possible one of these devices might be a culprut, but extremely unlikely.
I am using all CAT5e cable. As stated, everything on the network is absolutely solid, not even a slight issue with speed or delays. The RAID devices have static ip addresses. I also assigned a static ip address to the LG-TV set and this didn't make a difference.
My switch settings: (note: the ARLO router does the DHCP function for the devices in need)
Product Name JGS524Ev2
Switch Name
MAC Address b0:39:56:73:be:16
Firmware Version 2.0.1.40
DHCP Mode Refresh
IP Address (Static)
Subnet Mask
Gateway Address
Loop detection Disabled
Broadcast Forwarding Dynamic
Power Saving Mode Disabled
QoS Mode 802.1p
No data rate limit on any port
There are no crc errors on any port associated with TV or NAS units
IGMP Snooping Enabled all others associated with snooping disabled
There appears to be no control over large frames, ie the switch just handles anything thrown at it in whatever framesize it gets.
If no one has any ideas, I'm going to try a few more things.
I just went to media with my LG-TV. The RAID media servers are present. I tried viewing on both media servers with success. I tried interrupting the services and going back and forth and all worked perfect. I know it will fail given time. It always does.
What I did do was login into my Synology NAS and messed with the media settings, changed the time from 900 to 800 to 900 to get the server to reset and do a change. Both NAS units were there. Both played video. My guess is tonight they will be gone again. Both NAS units are programmed to power down the disk drives, but this has always been the case. Again, I welcome any ideas. I am very familiar with networks and how they work. Anyone that can contribute something to try please do. I will figure this out, but it might take a while synergy works solving these wierd issues. One more thing I haven't looked at is my DSM port numbers. I will check if the two NAS units have a conflict here.
Thanks Everyone
Chris
StephenB
May 18, 2019Guru - Experienced User
CH-Hawaii wrote:
As far as changes, my older router NetGear WNDR4500 just burned its power cord connection so it was replaced with an ARLO router.
Do you mean an Orbi? Arlo doesn't make routers.
While you're double-checking stuff, you might want to confirm that you don't have a duplicate IP address (and making sure the DHCP range doesn't overlap with some of your static addresses).
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