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Author Topic: UPNP/DLNA servers not always appearing on network  (Read 35462 times)

dave.leblanc

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UPNP/DLNA servers not always appearing on network
« on: January 22, 2012, 08:26:27 AM »

Hi,

I have a Med-Large home network with 3 different PCs/devices that regularly act as UPNP media servers. media is regularly streamed to consoles/Android devices in the house. I recently bought the DIR-827 to get an upgraded network to handle the extra throughput of so much media streaming. However, my UPNP devices aren't always discoverable on the network. I have harware revision A1 and firmware 1.0.1 and my settings are nearly identical to the settings described in this post if I can't get this resolved I'm afraid I will have to return this hardware for something more UPNP friendly

-Dave
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AquaManiac

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Re: UPNP/DLNA servers not always appearing on network
« Reply #1 on: January 22, 2012, 09:32:53 AM »

See if multicast is enabled in conjunction with UPnP. If it is not, enable multicast and hopefully that will fix your issue. UPnP uses multicast addresses. The DIR-827 is an IGMP router and switch so it could be constraining multicast traffic to other network switches along your layer 2 path in your med-large home network. If your previous router or switches were not IGMP/multicast aware they (your associated hubs/switches) would have broadcasted out the multicast traffic on all ports. IGMP queries, joins, and leaves are primarily issued by clients themselves to either announce their services or to receive service traffic. Most operating systems will automatically issue those igmp packets as the various software applications are used.

As far as my experience with UPnP/DLNA, my 2 Linux boxes, Win7 PC, STB, and the DIR-827 are showing up as expected. At this time, I have not really worked with the DIR-827 DLNA server as of yet. I have worked with the DIR-827 UPnP services as an Internet Gateway Device (IGD) to allow dynamic port mapping for peer-to-peer communications.

How is your home layer 2 network setup? In other words, how are your LAN devices connected via Ethernet cables? Since multicast is layer 2, you could plug in all of troubled network devices into the same switch and see if that does not isolate the DIR-827 as the issue (basically, it constraining the multicast DLNA/UPnP streams via its internal 4 port switch). Also note, not sure how you have setup your WiFi segments (assuming the Android devices). If you are using a Guest LAN for wifi then that guest vlan will not be reachable to the local wired vlan.
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dave.leblanc

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Re: UPNP/DLNA servers not always appearing on network
« Reply #2 on: January 22, 2012, 09:44:30 AM »

I have a DIR-827 with a Netgear Stora NAS/UPNP/DLNA server connected via ethernet, also connected via ethernet are my ps3 and xbox360

I have a DAP-1513 Wireless Media Bridge with 2 Linux PCs connected to it via ethernet and it is bridged with the DIR-827 over 5ghz

I have a Win7PC on 2.4ghz wireless and a couple Android Devices on 5ghz wireless

I have multicast enabled and upnp enabled

my Cable Modem's built in router also has UPNP enabled (this was my previous router and all upnp described above worked fine)

the trouble is that it is not terribly consistent with what device(s) are missing from the UPNP list. What IS consistent is that whichever device(s) have disappeared from the UPNP list are missing from ALL UPNP clients across the entire network. rebooting of the DIR-827 usually causes teh devices to appear again but they do not stay visible permanently
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AquaManiac

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Re: UPNP/DLNA servers not always appearing on network
« Reply #3 on: January 22, 2012, 10:09:56 AM »

How is your cable modem's built-in router being used on the network. From what I understand about your layer 2 network segments is the following:
1 - DIR-827 switch with 4 ports running 2.4 and 5 GHz WiFi. No Guest LANs
1 - DAP-1513 wifi bridge/extender with 2 Linux PCs directly connected to it running over the 5GHz band.
1 - Cable Modem connected somehow running UPnP
1 - Win7 PC on 2.4GHz
1 - 2 Android Devices on 5GHz

Any other LAN segments/switches on your network? I will assume that all of your lan devices connect directly into the DIR-827 either via its 4-port switch or via WiFi 2.4/5.0GHz radios. If you have a spare switch available, I suggest you try removing some of those direct wired lan connections to it and see if those DLNA servers always stay visible. Just trying to help you trouble/confirm the DIR-827 is the problem. If you have more than one IGMP router on the lan segments, it is possible that is causing confusing among your switches assuming they are IGMP snooping.

Also, can you describe how you have setup your wifi segments and SSIDs?
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dave.leblanc

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Re: UPNP/DLNA servers not always appearing on network
« Reply #4 on: January 22, 2012, 10:28:04 AM »

The Cable modems only current purpose is for the DIR-827 to be plugged into it.

the cable modem is setup on 192.168.13.x
the DIR-827 is setup on 192.168.0.x

there are no other switches or routers currently in the network.

the wifi segments have independent SSIDs and are both configured with the following

2.4 mixed mode g/n

WPA-Personal
WPA2
AES
Auto 20/40
Auto Channel

please note a console wired to the DIR-827 will occasionally not be able to see the Stora also wired to the 827 the only fix for this seems to be rebooting one of the two devices
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dave.leblanc

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Re: UPNP/DLNA servers not always appearing on network
« Reply #5 on: January 22, 2012, 10:39:46 AM »

ok I just discovered a feature on my cable modem to disable the commercial gateway features, this appears to have create a direct bridge and the DIR-827 is now receiving a DHCP ip address directly from my ISP it seems.

I'm going to try operating the device like this to see if there are any improvements in UPNP/DLNA device availability

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FurryNutz

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Re: UPNP/DLNA servers not always appearing on network
« Reply #6 on: January 22, 2012, 10:47:21 AM »

What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?
If this modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems.

Some things to try:
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? You can find these under Status/Device Info/Wan section.
Turn off ALL QoS (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices on the router. Setup/Networking
Ensure devices are set to auto obtain an IP address.

Set Firewall settings to Endpoint Independent for TCP and UDP.

What wireless modes are you using?
Try single mode G or mixed G and N?
What security mode are you using? Preferred security is WPA-Personal. WPA2/Auto TPIK and AES.
What wireless devices do you have connected?
Any cordless house phones?
Any other WiFi routers in the area? Use InSSIDer to find out.
Turn off Short GI, WLAN Partiton and Extra Wireless Protection if you have it. Under Advanced/Advanced Wireless.

Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.

Maybe someone can review your router settings with you using teamviewer.
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dave.leblanc

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Re: UPNP/DLNA servers not always appearing on network
« Reply #7 on: January 22, 2012, 12:47:44 PM »

What ISP Service do you have? Cable or DSL?
-Cable
What ISP Modem do you have? Stand Alone or built in router?
-Built in Router
What ISP Modem make and model do you have?
-SMC Model:SMCD3GN-RRR
If this modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems.
-I just discovered the feature see my above update, so far so good

Some things to try:
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? You can find these under Status/Device Info/Wan section.
-yes DNS is populating correctly
Turn off ALL QoS (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
-I've seen this both with and without QoS
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual.
-not enabled
Turn on DNS Relay under Setup/Networking.
-this is enabled
Setup DHCP reserved IP addresses for all devices on the router. Setup/Networking
-all devices have dhcp reservations
Ensure devices are set to auto obtain an IP address.
-all devices are set to auto obtain ips
Set Firewall settings to Endpoint Independent for TCP and UDP.
-I'm not sure I follow where this option is

What wireless modes are you using?
-2.4 is mixed g/n 5 ghz is n
Try single mode G or mixed G and N?
What security mode are you using? Preferred security is WPA-Personal. WPA2/Auto TPIK and AES.
-this is what I'm using
What wireless devices do you have connected?
-WAP-1513 motorola Atrix Motorola Xoom 2 acer netbooks
Any cordless house phones?
-no
Any other WiFi routers in the area? Use InSSIDer to find out.
-yes 2
Turn off Short GI, WLAN Partiton and Extra Wireless Protection if you have it. Under Advanced/Advanced Wireless.
-all done as well
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FurryNutz

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Re: UPNP/DLNA servers not always appearing on network
« Reply #8 on: January 22, 2012, 12:54:17 PM »

Set Firewall settings to Endpoint Independent for TCP and UDP might be under Advanced/Firewall. I noticed that the 645 doesn't have this feature. Would be curious if the 827 is the same.

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AquaManiac

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Re: UPNP/DLNA servers not always appearing on network
« Reply #9 on: January 22, 2012, 01:40:32 PM »

At present, the DIR-827 does not have an option for "Endpoint Independent for TCP and UDP".

This is all that it does have in 1.01 firmware:
* Enable SPI
* Enable anti-spoof checking
* DMZ host section
* and the 4 ALGs
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FurryNutz

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Re: UPNP/DLNA servers not always appearing on network
« Reply #10 on: January 22, 2012, 02:25:24 PM »

I guess there taking that option out of the new routers now. Hmm. Interesting that th 657 does and the 827 and 645 don't.  ???
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dave.leblanc

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Re: UPNP/DLNA servers not always appearing on network
« Reply #11 on: January 22, 2012, 06:33:52 PM »

As a sort of update, I've been running the whole day with various servers/clients being active and no drops in upnp servers. It seems bridging the Cable Modem and disabling it's commercial Gateway features was the cure.

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FurryNutz

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Re: UPNP/DLNA servers not always appearing on network
« Reply #12 on: January 22, 2012, 06:35:34 PM »

What make and model modem do you have?
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dave.leblanc

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Re: UPNP/DLNA servers not always appearing on network
« Reply #13 on: January 23, 2012, 07:39:01 AM »

What make and model modem do you have?

What ISP Modem make and model do you have?
-SMC Model:SMCD3GN-RRR



Another Day later and spent the night watching streaming media around my network and things appear to be more stable. It appears that needing to bridge the routers was the crux of my problem
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FurryNutz

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Re: UPNP/DLNA servers not always appearing on network (RESOLVED)
« Reply #14 on: January 23, 2012, 07:46:36 AM »

Ya I probably should have caught that however I figured that the modem shouldn't be effecting it however since you were running it as the Gateway and the 827 as a router. That can have issues. It should work well now. Member to save off the 827s router configuration to file. Enjoy.
« Last Edit: October 04, 2012, 08:03:14 AM by FurryNutz »
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