Changing the router or IP address: restoring Torgsoft operation

A critical instruction for cases when, after replacing the router or changing the IP address, the Torgsoft system loses communication between the server, cash registers, the mobile app, and retail equipment.

When you need to follow this instruction

• A new router has been installed.

• The Internet provider has changed.

• The server has been moved to another local network.

• The external (WAN) IP address has changed.

• Remote cash registers or the mobile app can no longer connect.

How the problem appears

• Client PCs do not connect to the server (RDP error).

• It is not possible to log in to the mobile app (an IP address connection error occurs).

• Torgsoft Hybrid has the status «Offline».

• The bank terminal does not process payments.

• The program cannot detect printers or scales on the network.

Why the connection is lost after changing the router or IP

1. The server received a new dynamic IP address after the router was replaced.

2. Port forwarding is not configured on the new router.

3. The external IP address changed, but clients are still using the old one.

4. Windows Firewall is blocking the required ports.

5. Old addresses remain in the Torgsoft applications.

How to restore the connection: step by step

1. Configure the local network (LAN)

• Assign a static internal IP address to the server through DHCP Reservation.

• Example: 192.168.1.100

• Reserve IP addresses for:

• bank terminals,

• network printers,

• scales.

 Without this, the addresses may change after every router restart.

2. Configure port forwarding on the router (Port Forwarding)

On the router, forward external connections to the server:

• RDP

• External port: non-standard (for example, 51245)

• Internal port: 3389 (TCP)

• Application server

• Port: 6001 (TCP/UDP)

• Bank terminals

• Ports: 2000, 2001, 3000 (depending on the model and protocol)

3. Check the firewall on the server

On the server, make sure that:

• the network type is Private,

• inbound/outbound connections are allowed for the following ports:

• 1433 — SQL Server,

• 6001 — application server,

• the external RDP port,

• bank terminal ports.

4. Update Torgsoft settings

AdminServer.ini(in some cases)

• Open the AdminServer.ini file in the program directory.

• Check the host parameter. It usually contains the server name, for example, host=SERVER, but if it is not a name, then specify:

• 127.0.0.1 — if the application server is running locally,

• or the current local IP address of the server.

Bank terminals

• Check the IP addresses of the terminals in the program settings.

• The addresses must match those reserved in the router if they are located on the same local network as the server (this does not apply to bank terminals connected from remote workstations).

Printers

• Open Settings → Printer selection.

• Reassign printers and templates for each workstation.

5. Update remote connections

• RDP shortcuts: change the external IP address and port.

• Format: IP:port (for example, 203.0.113.10:51245)

• Mobile app: update the server IP address in the login settings.

• Torgsoft Hybrid: update the server IP address in the login settings, log in using the new address, and after the changes make the first sale online.

How to check that everything is working again

1. The RDP connection opens without errors.

2. The mobile app synchronizes and loads data.

3. A test payment through the terminal is successful.

4. Sales made online from Torgsoft Hybrid are immediately transferred to the database on the server.

How to avoid the problem in the future

• Order a static external IP address from your provider.

• Save a backup copy of the router configuration.

• Keep a list: device → MAC → IP → port.

Summary: order of actions

If the router or IP has changed — first fix the IP and open the ports, and only after that check the settings in Torgsoft.