@anilk1970 Hi, thanks for posting question here. As XC220-G3V XPON router is a customized model for some local ISPs only, it is also suggested to consult local ISP to take further confirmation.

@YuriyB Hi, thanks for posting question here. We notice you have contacted techinical department and senior support has taken over your case for further analysis. Please look forwarding to their...

@dangcong Hi, thanks for posting question here. EX510 is a customized model for some ISPs only. We may need to confirm further information to understand your situation better, according to your issue...

@MartinKirk Hi, thanks for posting question here. If the network topology never changes, and only the internet connection type changes from Dynamic IP to PPPoE, maybe that is related to the VLAN ID...

@Leon-1962 Hi, thanks for posting question here. What app it is and what game it is? Do you play this game on your phone/laptop? You may also tell the model and OS of your phone/laptop? If you...

@Bergeron720 Hi, thanks for posting question here. Did you ever change any settings on the router recently? It is suggested to take factory reset on the router and reconfigure it to check.