I have a JBL Bar 9.1 Sound bar with wireless surround speakers that use the 5725MHz- 5875MHz frequency range. My Deco x68 5Ghz band interferes with them. I can confirm this by simply turning off the 5Ghz and the interference goes away immediately.
I need to change the frequency/channel on the router, and can't find any advanced options in the web interface or the Deco app.
Can you please help me?