@X3non Hello, Thank you for your detailed post. It is recommended to use 8.8.8.8 as WAN DNS / DSL DNS and see if that helps. (Advanced--Status--Internet - modify DNS settings) If the issue happens...

@Tiptironical Hello, If only 5Ghz got unstable issue, please login web page and change 5Ghz Channel width to 80Mhz to reduce possible interference. Changing Channel and Channel Width on AC VDSL or...

@Alibobo Hello, May I know are you using this USB printer controller right now published in 2019-11, if not please give it a try. What is the IP address of your printer, if MAC ping printer how about...

@PainApple Hello, The googled IP is the real public IP, that happens 1)when users have multiple routers, or 2) when ISP side has another NAT device that blocks the port, since you have a modem your...

@Salsa Hi, please try to update the Deco M9 firmware manually if you cannot get the auto update notification: https://www.tp-link.com/support/faq/1599/

@mfritzen Hi, you may check if this is obtained automatically from the ISP network, or you assigned it manually as follows: https://www.tp-link.com/support/faq/1855/