Sonos Port: Wired connection but still music is interrupted

Diagnostic Confirmation Number: 1889904531. Most of my SONOS system is wired with a few components connected via SONOS Net.

The Port is wired. Which room or rooms suffer dropouts when playing its Line-In? If dropouts occur in a wired player, which isn't grouped with anything else, then the wired network is the obvious place to look for issues.

Guest Playbase may be wired, but it’s in a pretty noisy location.

The Boost is doing nothing useful.

The Port is configured to start playing on the SONOS One “Wired” in the kitchen. I then group it to the SONOS Playbar “Wired” in the living room. The Playbar and Port are wired to a Managed TP-Link Ethernet Switch that has STP active on the ports configured for the Playbar, Port and the TP-LINK link port to another TP-LINK Managed Switches. All other wired SONOS components are connected to the master TP-LINK with STP configured on all SONOS ports. The Playbase in the guest bedroom has some components sitting on top of it (XFINITY Cable Box, ROKA, NetGear Media Streamer and a SONY Blueray Player). The Playbase is sitting in a SANUS TV stand wit the LG TV mounted above it. The SANIUS stand was made for the Playbase. The SONOS Play 5 is bout 10 feet from the Playbase and connects wirelessly. 

The BOOST is a holdover from my previous house and was used as the first connection to the router. We moved to a new house on 2017 and I had the house completely wired for Ethernet with CAT5E cable and have three TP-LINK managed switched located throughout the house. The Main 48 port switch is located in the Utility Room and a 8 Port switch is located in the family room. The third switch is located in my office and has no SONOS components connected to it. The SYNOLOGY NAS is connected to the office switch and is the main source of the music that is played in the house.  The PORT and Turntable were added as a 2020 XMAS present to my wife since she has a lot of vinyl records. It replaced a ZP-80 that originally had no external devices connected to it.

THANK you for t he quick response!!!

STP Questions:

1. Should only the ports that have SONOS connected have STP configured?
    
2. I currently have the some ports on the Main TP-LINK switch that have other devices connected with STP configured. Whenever new devices are plugged it forces a reconfiguration of the network would this cause a dropout to occur?
    
3. The network has been stable since is was installed in 2017. I added the SONOS Port about six months ago and did not have any issues. I did not have any external devices connected to it. In December 2020 I finally received the AT-LP120XUSB turntable and ths is when the issues started.

It sounds like underlying problems only became obvious when you began using the Line-In, which is clearly more delay sensitive. If connecting new devices triggers a temporary network outage that could definitely be a possible cause. What kind of “reconfiguration” occurs? Try restricting STP to only those switch ports which face Sonos units (and other switches).

Thanks, I am reconfiguring the TP-LINK switches to only have STP active on SONOS connected ports and the TP-LINK ports.

Have a Merry Christmas and a Happy New Year !!!! 

I have everything reconfigured and the SONOS network is once again stable. I have some questions related to the Network Matrix:

1. Colors of first column White, Green , Yellow, Orange and Red. I am unable to determine what the white color represents. I have been able to identify Green = Best, Yellow = Fine, Orange = Mediocre and RED = Worst.
    
2. Signal Strength - What is the range.
    
3. NOISE FLOOR - Some of the items in the Network Matrix have four numbers and others have three or one. It my understanding that a lower number is better. What is  the range?
    
4. OFDM-ANI - Interference Rejection ?? Range: 0 -- 9 with 0 being the best and 9 being the worst.
    
5. OFDM- Weak Signal Level - Is this the same as OFDM-ANI?
    
6. NODE Reference - I see references to both Secondary and Tertiary in my Network Matrix. What does this represent?
    
7. Inbound - I see blocks with both a single number and two numbers. What does this represent and what is the range?
    
8. Outbound -  I see blocks with both a single number and two numbers. What does this represent and what is the range?
    
9. STP State: I see mostly blocking and forwarding in my network matrix.
   
    

I hope you have a Merry Christmas and a Happy New Year !!!!

1. The colour reflects the ambient noise level and the amount of rejection by the wireless card. The latest wireless modules don’t return such data is a form that’s compatible with the matrix, hence the white cells.
2. 0 to somewhere over 80. I’m unsure what the upper limit is these days. In the low 20s a connection may start to struggle. Below 20 can be nonviable.
3. There are 4 zeroes from the latest radios, which as I say are incompatible with the matrix display. The earliest radios (which also display OFDM Weak Signal Level) have a single figure, the later ones three. I’m unsure of the range, but I’ve not seen anything much below -120dB.
4. Correct.
5. Similar, see above.
6. Secondary nodes are those directly connected -- in STP terms -- to the root bridge. Tertiary is everything else.
7. Again, it depends on the generation of radio. The oldest version has two signal strength figures, the others one. As for the range see 2 above.
8. Ditto.
9. Open virtual ports are in the ‘forwarding’ state; those that are closed to avoid loops are ‘blocking’. Read up on the basics of STP. Google is your friend.

Good evening all,

Unfortunately, my initial issue is back. After having read the entire thread, I believe I'm also facing the “STP” issue. When playing Spotify or watching movies, no glitches whatsoever occur. 

(the playbar, sub and ones work flawless)

When playing vinyl via the Port, the glitching starts...playback is interrupted and also the Sonos app (on my iPhone) sometimes states that it can't connect anymore.

After it reconnects, I see (sorry for the Dutch screen) that the connected system (gekoppeld product) has changed. Previously it connected to IP 192.168.1.150 (which is my UTP connected PORT); Now it seems to be connected to 192.168.1.114 which is my 'wireless’ connected playbar.

I've already switched to sonosnet channel 6, have added a delay of 2000ms but all is in vain. 

My current setup (playbar, sub, 3 one's and 1 one SL are not connected via UTP. Only the port is UTP connected)

Any idea what might be causing this glitch?

Thanks a ton upfront and best wishes for 2021!

Sven

Hopefully my "matrix” sheds some light to the matter :-)