The message "Connection closed by remote host" means that the WorkFlows client has lost connection to the Symphony Server.
The Symphony database will close the connection if 3 handshakes are missed.
So suppose you pull information or send information to the database through WorkFlows. If that action misses 3 handshakes it will close the connection and give a message that the connection is closed by a remote host.
If all machines are getting this message simultaneously, then it is likely an issue on your network whether it be with your router or a firewall configuration. Contact your IT department or Oplin in this case.
If you are getting this message randomly and only on one or a few workstations throughout your library, it could be caused from a power management setting on the PC, outdated NIC drivers, wireless access points, etc...
- Click Start, right click on Computer and choose Properties.
- Click Device Manager.
- Navigate to your NIC/Network Adapter, right click on it and choose Properties.
- Choose Power Management tab.
- Be sure to uncheck "Allow the computer to turn off this device to save power"
- This may require a restart to take effect.
- If a Wireless connection is in use; this would be an obvious place to investigate first (e.g. reboot the wireless router)
- NIC itself. Ensure the latest drivers are installed. Disable/Enable the NIC as a troubleshooting tactic.
- Network cable or termination ends could be physically bad/damaged. Perform a ping test to see if there are any packets being dropped.
- A good test would be to open the command prompt and type ping -t 66.213.1.6 and let this command output for several minutes. This IP is our Symphony database. If you see any dropped packets; this would indicate a network issue (congestion) and give you a good idea as to what to investigate.
- System or Application processes could be running on the PC that could keep the NIC from responding. High CPU utilization by a program could be the cause as well
- Network equipment such as hubs, small (home-based) switches could become overrun (e.g. broadcast storm) causing the WorkFlows traffic to drop.
- Possible DNS issues with Symphony WorkFlows using "cloud.seo.lib.oh.us" as the IP address. You may need to use the direct IP as shown below:
- Change the IP Address in the WorkFlows configuration window from ohio.sirsi.net to 66.213.1.6 or 66.213.1.7 as shown below:
A: If your internet connection is provided by OPLIN use 66.213.1.6
B: If your internet is not provided by OPLIN please use 66.213.1.7 - Please call SEO To have your non-OPLIN IP added if you have not already.