SG300 Switch - One-Way Access to subnets

[chrisg001111]

We have a SG300 with a few different subnets on it.  .202.x, .102.x, and .222.x.  For some reason, we can't get traffic to flow from the .202 network to the .222 network.  In other words, if we try to ping 192.168.222.5 from a computer on the .202.x network, all we get is timeout errors.  However, we can ping .202.5 from the .222.5 computer just fine.

Any thoughts on what to change? 

[LJ Gabrillo]

Try this:

1. Any Firewall e.g, Windows Firewall or Anti-Virus firewall on the device?
     -Disable it and try again

2. Check for any ACL
    -Remove it for Isolation
 

[Glenn Martin]

Moved post from SMB Community to SMB>Switches Community

[Brandon Svec]

I'm going to guess the default gateway is not appropriate on those devices or the gateway that is in place does not have a route to the appropriate network.  Is the switch in L3 mode and are you using the VLAN interface IPs as default gateways?

[LJ Gabrillo]

I think its not the gateway considering he can ping from VLANX to VLANY endpoint, but not from VLANY (same endpoint) to VLANY.