Manually Reset the Switch. When the switch fails to work and cannot be reset by using the web-based utility, the switch can be manually reset to restore the factory default configuration. Step 1. Disconnect all Ethernet cables from the switch. Step 2. Using a pin, press and hold the Reset button on the switch for 15 to 20 seconds. Step 3. Switch# configure terminal Switch(config)# config-register 0x2142 Switch(config)# exit Switch# reload Method 3: Using Write Erase Command Switch# write erase Switch# delete flash:vlan.dat Switch# reload Expected Outcomes. After a successful reset: Switch boots with default configuration; All ports in default VLAN 1; Management interfaces.
Manually Reset the Switch Step 1. Disconnect all Ethernet cables from the switch. Step 2. Using a pin, press and hold the Reset button on the switch for 15 to 20 seconds. Note: In this example, SG350X-24 24-Port Gigabit Stackable Managed Switch is used. Step 3. Once all the port LEDs light up, release the Reset button. Step 4. Step 4: Double Check Serial Settings. To connect to a Cisco device via a Serial session a few settings need to be confirmed. COM Port - (be sure the COM number is correct, if you are using a usb adapter it may not default to using COM1.