Troubleshooting SmartSync Network Issues

Updated:
Aug 01st, 2019

If your organization is encountering network issues that affect SmartSync performance, attempt the following troubleshooting methods to help determine the cause.

Test and monitor key applications and network connections

Active monitoring can provide insight into network performance on key interfaces, and can alert you when conditions begin to decline. Periodic checks in the background to the application host can provide an ongoing baseline of the network performance between users and the host. If the baseline increases, alarms are used to notify administrators that network latency is becoming an issue.

Keep track of latency over time

Graphing latency over time helps to identify patterns and anomalies that deserve closer attention. Latency monitoring can help correlate areas of latency with other relevant statistics, as well as the actual network traffic occurring at that time. This type of high-resolution forensic analysis can be used to help detect latency problems at the highest level, and allow you to drill down quickly for a closer look. Ideally, network latency and application latency measurements can be graphed together over time. Comparing the measurements and seeing the differences can provide information that might have otherwise been overlooked.

Try to isolate the problem component

If the problem seems to be related to a wireless card, considering swapping to a different card or changing the network cable.

Try different hardware settings

Enabling duplexing, changing the link speed on the network cards and switches to the same speed, changing the MTU in the network protocol setting, and enabling jumbo frames can all help with latency.

Install the SMB2 hotfix

For more information, see Microsoft SMB2 Hotfix.

Turn off WAN acceleration

Turning off WAN acceleration may require you to consult with the WAN Accelerator vendor to disable caching or certain protocols.

Turn off network compression/encryption/virus checking

Adjusting the network compression and encryption when using a VPN may reduce overhead on the network connection resulting in better throughput and reduced packet loss.

Check online backups

Ensure that an online backup is not being performed on the client file while it is in use.

Turn off all data snapshots on active client files hosted in virtualized environments

Snapshots or replays can cause data corruption on larger files when writing back data, which can cause file corruption and synchronization errors.