PS my own router is a Linksys EA 6350 and I have set "dis-able UPnP". I have all devices (media and non media devices) set to get their IP addresses via DHCP. All the media devices have DHCP IP Reservations (so they always get the same IP address, and nothing else can take that address). I also have two separate WiFi access points which also get their IP addresses via DHCP Reservations on the Linksys. The WiFi APs have their own DHCP servers turned off (to prevent them trying to give away IP addresses that are in the scope of the Linksys route). And finally I do not have any devices with static IP addresses (to avoid them being on the wrong sub- net, and to avoid them "stealing" the IP address of any other device). This network works perfectly routing UPnP discovery calls between MC on four or five different computers, about five media devices, and about five phones and tablets, plus guests. Some devices are connected via Ethernet and some by WiFi. I never have dropouts or disappearences. All is rock steady. All of the time.
Thank you for sharing the information on the UPnP setting of your own router. This confirmed my belief that the lack of UPnP checkbox support on my current router firmware should be a non-issue.
My setup is quite similar to yours other than the static IP assignment on PCs, NAS devices and printers. There should be no conflict in IP address assignments. All IP address assignments are written down to a text file that is checked regularly. I had bad experience with certain consumer routers that have semi-functional DHCP servers including a CenturyLink DSL modem (not mine). On that network, when the DHCP server failed to renew IP addresses on secondary routers, the whole network could not get to the Internet. The solution was to use static IP addresses for secondary routers.
On my home network, the cable modem is not a router. The Linksys EA3500 is the router and DHCP server. A second AP on a static IP (reconfigured Netgear AC1600 router) provides WiFi coverage on 2.4 and 5GHz bands. I used to have 3 APs but this new one has enough coverage so old ones are retired.
The network consists of 1 router, 1 wireless AP, 4 VoIP devices, 4 NAS boxes, 3 network printers, 3 Rokus, 2 Amazon FireTVs, 1 Sonny Smart TV, 2 local video streamers, 3 Android TV boxes and finally two audio streamers, the Sonore SOSE and Yamaha WXC-50. All of the above are wired with the exception of one printer on WiFi. The WiFi devices include iPads, Android phones and tablets, Kindles and one Echo Dot.
The Linksys router has a priority list for VoIP devices which should not have any impact to the audio streaming on the local network. Since I don't play games, the UPnP router setting is not needed.
I must admit I have never used or trusted DLNA streaming, audio or video, on my home network. A Windows 7 PC in the living room was used to drive the DAC for music playback. Each computer has its own DAC connected. Everything was working well. The local video streaming is pulled, not pushed, from a NAS or PC.
After attending the last Rocky Mountain Audiofest Confence, I decided to replace the livingroom PC with a SOSE device to improve the sound quality by removing the interference from the computer to the USB DAC. When I encountered the problem of dropout during playback, the Yamaha WXC-50 was purchased to rule out the possibility that SOSE was the issue. Since both had the same issue, that led me to start this thread.
All known devices on my network are either on static or reserved IP. The ranges of static, reserved and DHCP IP address do not overlap. Do you see any potential issues with the network setup?
If the network is fine, then the issues would be within the Windows. All Windows PCs have their firewall enabled running AntiVirus and spyware scanners. Are you running JRiver MC on your Windows PCs push audio to DLNA renderes on the network? What changes have you made to the Windows to make it work? If I were to set up a Windows machine from a Windows 8.1 ISO file and install JRiver on it, would it work out of box to push audio to my DLNA renderer, SOSE or WXC-50 without dropout?