hI, I am a non-network newbie struggling with network issues that are way above my pay grade and would appreciate some/any advice : installed equipment is TP-LINK ER-6020 1unit CISCO SG220-26 SWITCH...

I'm trying to configure a vlan for guest please help me how to do it Router tp link er6020 Switch cisco sg220-26 Ap cisco wap150 Router creat vlan id 25 port 5 untag Switch add vlan id 25 Ap vlan id...