Surround Sound Drops Out

[JDYate]

I have a HT-MT500 Soundbar paired with two SRS-ZR5 speakers to create wireless surround.  This has been working perfectly for nearly two years but now, all of a sudden, the wireless surround connection drops out after just a few minutes.  I can't make the connection stay.  The firmware on the soundbar and the rear speakers is up to date. The whole system was quite expensive and I'm getting really fed up.  Any ideas please?

[LightFoot]

Hi @JDYate   Have you or your neighbours added any wireless devices recently, like Hive that may use the same WiFi channel (which will be in the 100s)?

[JDYate]

Hi - thanks for your reply.  Not that I'm aware of.  Is there any way of changing the WiFi channel of the soundbar?