TomorrowOcean  Ally Member

You should find it in the original brown box of your Switch~~

Just saw another post also about this and seems having workaround there. https://community.zyxel.com/en/discussion/3401/gs1920-24hpv2-non-interactive-ssh-invalid-command

It sounds strange to create VLAN2 on Switch but there is no VLAN2 interface on your router...how your VLAN2 wireless clients get DHCP IP?🤔

Do you see the fan really stop? or just false alarm? If you remove the middle wire on your new fan, I think it is normal that Switch shows error, or you just want to find a way to disable the error message? 🤔

Hmm...I don't think the PoE injector will still deliver power when the connected device is not a PD, so the laptop should not be burned...😂

Does your AP support NAT? Maybe using NAT mode on your AP, then you will see only one IP/MAC(AP's IP and MAC) from all your wireless clients. Therefore, you may limit one MAC address with port security on Switch. 

What and where the alarm you see?(Curious~)

Have you remembered to save your configuration before you upgrade the firmware? In my understanding, the counter should be reset if the Switch reboots.

I think it should just like DIY desktop PC, directly check the pin color of the old fan in the Switch and find a same new one to connect. If you don't care about the warranty, you may have a try and share us the result. :+1:

Hi @theman824, The switch's port speed should be already Auto by default, so when the Router which is configured at 1G speed, the connection between two devices will link up at 1000M. May you share why you need to configure force 1000M manually on GS1900-8? Like you mentioned, the cable maybe is a reason, if the cable only…

Hi @kman, Your PC sends the untagged packets to the switch. After you configure PVID 10, the switch will encapsulate the packets with VLAN 10. Therefore, your PC can't reach the IP address on VLAN 1. Here is my suggestion: If you have a Router to be uplink of GS1900, you may use Router to route the packet to the management…

Hi @nospherato, I find a document from Zyxel KB that GS1900 can't modify the MTU via WebGUI or SNMP. You may refer to this link: https://kb.zyxel.com/KB/searchArticle!viewDetail.action?articleOid=016101&lang=EN GS1900-8 already support Jumbo frame 9K, there is no need to change MTU on the switch. Why you need to customize…

Hi @djpiky, You may verify the followings on your GS2200 switch: * Do you enable Port Isolation on the switch except for uplink port(the port which goes to the Internet)? You may go to "Advanced Application -> VLAN -> VLAN Port Setting" to check. If yes, you may disable it and try again. * If there is an ACL configuration…

Hi @Elvis, Do all three switches have the same issue that when plugging the fifth PD, the switch wouldn't detect it? How much power do your PD(IP camera) need from the PoE switch? You may go to "Monitor -> Port -> PoE" to see the total usage of the power. or you may also go to "Configuration -> Port -> PoE -> Port" to see…

Hi @Wizz, I have a GS1100-16 in my office, but I didn't meet your problem. Does your PC can ping another PC(or DHCP server) through the switch in the same network? May you also check the protocol port 139 and 445 are enabled on your PC? BTW, I see that there is a note: "Managed Switches Only" in the Quick Start.