If you need to, you can downgrade by using the SSH console and doing en > roll-back

@rahulchopra OC200 is limited because it is old, slow, and cannot really cope with many of the latest features. There is no way to enable the functions that are missing compared to OC220/300/400 and...

I have confirmed this behaviour if Google NTP is set as the time server in Controller (Global > Controller Settings) Try changing this to any other NTP server or "Auto" then doing a reboot of...

@jra11500 Update: UK pool NTP servers work normally. Cloudflare NTP works normally Internal NTP works normally Google NTP (time.google.com) does cause switch disconnection - they go "Configuring" for...

@jra11500 Are you using the gateway as DNS proxy/cache? and what DNS server is set in the management vlan interface of the switches?

@Yann77 All manufacturers will EOL products and cease supporting them with updates, this is not limited to TP-Link at all.