The MX80 went end of support back on Aug 30, 2023.  It may simply be that current software now longer works on it. https://documentation.meraki.com/General_Administration/Other_Topics/Meraki_End-of-Life_(EOL)_Products_and_Dates   You should aim to replace this device ASAP.  Check out the sizing guide: https://documentation.meraki.com/MX/MX_Sizing_Information/MX_Sizing_Principles   ... View more