@MotazAlia Hi, thanks for the quick reply. When you mentioned "After firmware upgrade", I thought it started after the firmware upgrade. Sorry for the misunderstanding. Actually, I think Deco X20(EU)...

@chrisisb Hi, can you leave me a message here with your SIM service provider? Here was a beta firmware for Archer MR600_V2, which supports 464Xlat, but it was quite older than your current firmware....

@Mornagest Hi, thank you very much for the feedback. Is your issue like the following post: https://community.tp-link.com/en/home/forum/topic/858086 Internet service no longer works when IPV6 PDP...

@Colyn-TP Hi, thank you very much for the feedback. I've left a message with a beta firmware for M7450_V2. Could you please help me test whether it helps with your case? Wait for your reply. Best...

@Lorenz_Italy Hi, welcome to the community. I checked the UG of NX200_V1( the button rules also work for V2 and V2.2):...

@PhilC32 Hi, you can change the "Subnet Mask". The default is usually 255.255.255.0. If you need a wider range(from 192.168.0.1-3.254), you can test 255.255.252.0. Best regards.