Is it normal for the client sending data to send at 15 Mbps (the maximum upload rate at that location) for a few seconds, then stop for a few seconds? Meanwhile, the receiving client always receives data at 3-4 Mbps without interruptions. Is there a way to speed this up?
Difficult to say without a lot more details about the setup (e.g. operating system, network link specifics, etc.). But as just a Syncthing user, I can’t say that I’ve ever seen that behavior except when it’s a networking issue.
Although 15 Mbps is the upload rate, it’s not unusual for it to not be a sustained rate. First thing I would do is run a network throughput test to check for average transfer rates, latency and any frequent packet losses (the latter could be one reason for the rollercoaster transfer rate you’ve been seeing).
First Setup:
- Windows Server 2022 Datacenter on an HP DL360p Gen10 server
- Equipped with a 10Gb NIC connected to a 10Gb switch
- Utilizes a pfSense firewall (way overspect so shouldnt be a problem)
- External connection: 15 Mbps upload / 100 Mbps download
Second Setup (Offsite Live Backup):
- Windows Server 2022 Datacenter (on an older DL360 Gen8 server)
- Sufficient CPU and RAM for its needs
- 10Gb internal network connection
- External connection: 30 Mbps upload / 250 Mbps download
- same pfSense firewall in place
Additional Notes:
- The two sites are approximately 10 kilometers apart.
- The network infrastructure in the area is considered reliable.
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