cant ping from another vlan

[Aquiles]

i have a lan with 3 switch cisco sf300-24pp,  they are fiber optic interconected all 3, i have 5 vlans,  but i have a pc that has access to internet, the computer its on vlan 50,  every device from the same vlan can ping the computer, but if another device its in another vlan it cant ping the device,  i have tried to change ip and nothing happen, i dhcp the computer and i get ip addres but cant be ping from another vlan, what could i be missing.

[Rich R]

You need a router to route traffic between VLANs.
According to https://www.cisco.com/c/en/us/products/collateral/switches/small-business-smart-switches/data_sheet_c78-610061.html "Features include:
◦    Static routing/Layer 3 switching between VLANs: This capability allows you to segment your network into separate workgroups and communicate across VLANs without degrading application performance. As a result, you can manage internal routing with your switches and dedicate your router to external traffic and security, helping your network run more efficiently."

So that means you should be able to configure the switch to that routing for you.  According to https://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbms/sf30x_sg30x/administration_guide/78-19308-01.pdf the switch needs to be in Layer 3 system mode to handle the routing. Administration >
System Setting.  Section 17 in that doc explains how to configure interfaces and routes.

[Aquiles]

i have them conected to a r4451 with their sub interfaces, i can actually ping another devices from that vlan , just that device in specific dont