@Woz-Fab Hi, yes, I'd love to provide further assistance. May I know who is your SIM carrier? Have you tried to put the SIM card into the iPhone and test whether you could still connect to the...

@Swaasje Hi, Welcome to the community. Have you tried to replace new Ethernet cables from router to switch, then to the computer? - it is also suggested to switch to different Ethernet ports to test...

@mjalb88 Hi, Thank you very much for the feedback. Who is your internet service provider? - How about the internet connection type for both IPV4 and IPv6, Dynamic IP or PPPOE? -I noticed you have...

@leviosa Hi, welcome to the community. Have you tried to set Zyxel DX3300-T1 to bridge mode so that Deco X20 could be the only DHCP router in the network:...

@Hard_ware Hi, welcome to the community. Are you able to constantly reproduce this issue on Deco XE75? I'd like to follow up on your case via email and ask the senior engineers for more advice....

@eth2 Hi, welcome to the community. I'm afraid the current network behavior is expected. You might need to only select the hardware IP Phones as the VPN clients, instead of All clients under "Access...