Need help configuring the firewall packets

Avast Free Antivirus / Premium Security
1

I’m using an app for reading banking payments (https://play.google.com/store/apps/details?id=br.com.cigam.boletos).
It has a server to receive the info via WiFi installed in the computer.
If I disable avast! Firewall, both the smartphone and the notebook can communicate each other.
I’ve tried to create a packet rule as bellow:
Action: Allow
Protocol: UDP (17)
Ports: 5500 (local) - 5500 (remote)
Address: Friends and local network IP range (0.0.0.0-255.255.255.255,192.168.25.2-192.168.25.240)

All other avast! Firewall packet rules are default.

Can anybody guide me on this? Thanks.

2

What Windows? 7? 8? XP?
Not familiar with Avast firewall. Nor with the application you speak of. So this is just few very general thoughts since nobody answered you yet.

  • If it uses the native windows 7 firewall, perhaps there’s a log in the event log telling why it’s blocked. Or maybe Avast has a log. Logs are your friends, if you can find them.
  • I assume that both your notebook and the smartphone are in the 192.168.25 subnet.
    You may need to include the broadcast address, so go all the way to .255 on the subnet instead of stopping at .240. And maybe include the router .1 so that it can do its ARP protocols and all that 'who has … ’
  • Are you sure both local and remote ports are the same? It might be, but also might be local:any, remote:5500, or quite possibly the other way around - logs should tell you.
  • Perhaps a TCP connection is also needed. I gather the server is on your notebook, in which case you would have to allow TCP inbounds and likely to local port 5500 from any port on the remote side.
    Apologies if this is all wrong :slight_smile: