@Jack_333 Yes, the TP-Link Deco E4 can be connected wirelessly to your existing Deco X50 network. Both models are compatible with each other and can work together as part of a single mesh network....

@Inge83 It seems like your Deco M4 might be experiencing issues with Wi-Fi scheduling or interference. Since you've already ruled out broadband and modem issues, try disabling any potential Wi-Fi...