@Albaw Hi, thanks for your further sharing. You may contact technical support of your Samsung phone to check related settings. Best regards.

@Daggles Hi, -May I know the model of your sip phone? -Do you have old modem router which supports VoIP? What is the model of it? -It is suggested to reinstall your old modem router then compare...

@local123 Hi, thanks for your sharing on the community. As the problem is weird, we would like to escalate your case to the support engineers, and they will helo follow it up. If you are willing to...

@Corpsetastic Hi, thanks for your further sharing. After confirmation, it seems that the same issue happened on your several TP-Link DSL modem routers, and the computer keeps dropping IPs sent down...

@Maliky Hi, welcome to our community. May I confirm your model is Archer AX1800 or Archer VX1800v? They are different types of products. If it is Archer AX1800, you may follow the guide to...

@Omar121212 Hi, thanks for your update. It is suggested to factory reset your VR300 and reconfigure it, then only try to set up Access Control--Blacklist for a try. Best regards.