Music is interrupted some rooms

Have you gone through the support suggestions for wifi issues?

https://support.sonos.com/en-us/article/improve-your-sonos-products-wifi-connection

I’d also be tempted to read the wifi interference FAQ. Unfortunately, Turkish doesn’t seem to be a ‘supported’ language by the Sonos FAQs. 
 

Translation to Turkish:

Ayrıca wifi paraziti SSS'sini okumak için cazip olurum. Ne yazık ki, Türkçe Sonos SSS tarafından 'desteklenen' bir dil gibi görünmüyor.

Dear ​@Stanley_4  and ​@Airgetlam thank you for your replies.

I checked my products from sonos app and only one product have different network parameters. Its located in my bedroom. How can i change theparameters ?

How are the bedroom network parameters different?

Dear ​@buzz , ​@Airgetlam and ​@Stanley_4 

channel value is displayed as 36 my all product except of bedroom one.

You can see the difference below.

Channel 11 is 2.4 gHz so you might try changing your wifi to either 1 or 6 and see if that helps. 

Still 43 should be usable, I have a couple weaker than that, still showing Fair, that are working well.

As a test, remove SUB from the bedroom configuration, then reboot the bedroom players. Does the bedroom then move to 5GHz?