How to Resolve Slow Speed Issues on the XMG1930 Switch

Zyxel_Lucious

Question: A customer experienced slow download/upload speeds on their network when connected to a Zyxel XMG1930-30HP switch with a Unifi UCG Firewall as the gateway (on VLAN150). How can this issue be resolved?

Answer: Slow network speeds can be frustrating, but the issue was resolved successfully by enabling the "Port Buffer" feature on the Zyxel switch. Here’s how to do it:

1. Log in to the local web interface of your XMG1930 switch.
2. Navigate to Port > Port Setup.
3. Find the Port Buffer option and enable it for both uplink ports and access ports.
4. Save your changes and test network speeds again.

After enabling the Port Buffer feature, the customer reported improved speeds of 700+ Mbps for downloads and 900+ Mbps for uploads. This helped resolve the issue significantly. For better convenience, the customer has also suggested adding the Port Buffer option to the Nebula Cloud platform.

If you're still experiencing issues, double-check your configurations or contact technical support for further assistance. Positive results during a live stream indicate the fix's effectiveness.

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