@_cc Are you saying you can play YouTube smoothly when connecting to the 2.4G network? Generally, when Smart Connect is enabled on the router, it allows the router to automatically assign connected...

@AX1800 Are you saying the wired connection and 2.4G connection of the AX1800 is pretty stable, while the 5G is not? If that's the case, try to change the wireless mode to 802.11 a/n/ac mixed for the...

@BillD 192.168.0.x and 192.168.1.x belong to different network subnets, that's why they cannot talk to each other. Either change the Fios G1100 modem to bridge mode as follows:...

@TN_Webhead Firstly, please review the settings and suggestions we provided in the below thread: [Troubleshooting] Router Disconnects from Internet If none helps, please tell us the below details, we...

@Kevin_Z I just found you are inquiring about this in a different thread, are you referring to the same issue as below? I explained this to you already:...

@AZgang Are you running the latest firmware on the C5400? Please try to reset it to factory defaults if the firmware is already the latest, reconfigure it from scratch, don't modify the Advanced...