GS1100-16 strange port behaviour
Welcome to Zyxel Community!
According to your description, I would like to check the following with you:
1. You mentioned you use 20 of 24 ports on the Switch, may I assume your Switch is GS1100-24 or GS1100-24E?
2. May you provide me the first 5 letters of the serial number? We would like to know the production year.(It should start with "S")
3. May you share what devices are connected to your Switch? Do you also connect Unifi AC Lite like other users mentioned above? What is the application in your daily use?
4. Is there any new device or new application you use in the network recently? The reason I ask this is because you mentioned the Switch has been working well for a year.
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