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Hello



Since the last IOS update I seem to loose speakers on my network, and those I can see won't play music



These are the only one's sonos sees from 5.

Associated ZP: 192.168.1.178

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Play:1: Kitchen

Serial Number: 5C-AA-FD-2D-5D-BC:1

Version: 9.0 (build 44254230)

Hardware Version: 1.8.3.7-2

Series ID: A101

IP Address: 192.168.1.119

WM: 0

OTP:

---------------------------------

Connect: Living Room

Serial Number: B8-E9-37-9B-B7-CC:2

Version: 9.0 (build 44254230)

Hardware Version: 1.17.5.5-2

Series ID: C100

IP Address: 192.168.1.178

WM: 0

OTP: 1.1.1(1-17-5-zp90-2.1)



Submitted a Diagnostics, rest of my network seems fine.



our confirmation number is: 2121925776.
A power cycle of a single speaker seems to bring them all back on the network.
Gone again can only see two now with error 1001 or 1002 if I try to play through them
Try flushing out any duplicate IP issues by following the following procedure:-



Switch off your Wi-Fi Router

Switch off ALL your Sonos kit

Switch off ALL devices connected to your Network

- Computers, Laptops, Tablets

- Smartphones, thick phones

- NAS



Switch on Router. Wait until it has re-connected to the internet

Switch on Sonos Bridge and/or Boost, Connect - Wait a minute or two for them to connect

Switch on your Sonos Plays and Playbar

Switch on all your other network devices
If that works for you (it should) consider avoiding it happening again and assign static/reserved IP addresses to your Sonos gear from your router's DHCP page. It is easy and fast and solves many problems.
It worked, and everything is set to static IP.

Hopefully it will stay OK now.