@Bambosz should check this. I'm just warm-hearted user, lol

@shberge But the phone even didn't get IP from the DHCP range. Don't know why. @Bambosz Are you still running your Linksys router? Does it broadcast Wi-Fi? Make sure you connect to the correct EAP'S...

@rtinsky What's your network topology? Did you set DHCP Server? Do those devices connecting to the switch get correct IP addresses from their own VLANs? The switch's ports should be untagged if they...

@ichosethisone Normally, different kind of devices can't mesh together. But you can configure the same SSID and password to achieve basic roaming. In most cases, basic roaming is enough.

@Bambosz Try rebooting everything(ER605, EA245, as well as Android devices and iPad). Will you still have this issue?

@MarkB I think you can also try disabling band steering and fast roaming. Seems sometimes those features will affect the network speed and stability.