That's interesting, as I also have the guest network enabled. I didn't test 380.65_4 by disabling this as previously it had worked fine and, as I mentioned, for me at least it is now working as expected again. I have a 'secured' guest network for the devices I don't trust enough to be let loose on the main network.Also, the router would go crazy when enabling Guest Network. My wireless devices keep disconnecting/reconnecting constantly to the router every few seconds and I must hard reset router if toggling the Guest Network on/off to get stable wifi. This happens on both 5 Ghz and 2.4 Ghz band. FYI - I use the 2.4 GHz guest network band only.