https://software.cisco.com/download/release.html?mdfid=283773613&flowid=24307&softwareid=282463182&release=1.0.0.19 The first thing I would check on the SF200-48 is the firmware and boot code. Usually when there are weird issues like this through one...
http://www.cisco.com/c/en/us/products/collateral/switches/small-business-smart-switches/datasheet_C78-582017.html This is the data sheet for all of Cisco's 100 series switches. This sheet has all of the technical specifications that Cisco has release...
To remove that vlan from your port you will need to issue the command:config tint XXXX(this is the interface that you will be connecting to)shutdown(to bring the port down to make changes)no switchport access vlan 2012 (to take out the access vlan)no...