@Hristian Is that only FB, that gives these issues, are any other websites OK ?

@Hristian Clear your browser cookies or use another browser and check if that helps.

@TimKan Check if this is set to 'Auto Negotiation': Check the negotiated speed of your AX50 internet port: It should be connected @1000 mbps. Otherwise change the setting to : and again check the...

@Tod See modification and bug fixes for your device here. '1. Set AES as the default WiFi encryption". If you haven't just update to the latest FW revision.

@Johnylee So, you have hard reset after downgrade to previous FW version, re-configured from scratch and still can't connect ? Contacting your ISP could be the other way to go. If there are some...

@Johnylee Have you hard reset (Method 1) the device after upgrading to the latest FW and re-configure from scratch ? Sometimes that helps in similar situation. If not, try that. If you have, then...