What is your current firmware version? Some localized firmware may not allow to be updated to the other version.

LOL, haven't noticed it. What is your router's firmware version?

If you can ping the print server at when it disappeared? Test in this way(without the router): PC>>>PS>>>Printer, to check if it works stably. Then I found someting about resetting the PS...

Thanks for sharing, Styan. And waiting for the upfates.

If the power bank has enough power to charge the mobile? 5V/1A and 5V/2A, which port you were using?

3mbps is quite slow!! How many you were getting with the previous version of firmware? It is a speedtest result on the actaul connected clients or the test result on the deco app? If AP mode and...