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leenl
leenl
Visitor III
March 19, 2025
Question

Enterprise Network Troubleshooting: Applied for 300Mbps, But Only Getting 150Mbps – Firewall Limitat

  • March 19, 2025
  • 2 replies
  • 1120 views

We have a problem
The bandwidth we applied for was 300Mbps, but the actual bandwidth was only 150Mbps.
Is it related to the internal function restriction of the firewall? If it is unavoidable, do I need to upgrade the hardware? I have checked the CPU and RAM first and they are all normal.

The product we use is FortiGate100D

 

2 replies

AEK
SuperUser
AEK
SuperUser
March 20, 2025

In the related policy (LAN-to-WAN), try set it "flow inspection mode", remove any security profile and set SSL inspection to no inspection, then do the test again and share the result.

Also, when you connect your laptop directly to the external router, do you actually have 300Mbps?

AEK
    leenl
    leenlAuthor
    Visitor III
    March 23, 2025

    Directly without FortiGate100D, the bandwidth is 300Mbps.
    We later found out that the problem was with the wifi. Some of the bandwidth would be consumed when using wifi. It was normal when connected to a wired network. The wifi problem is still being confirmed. Thank you for your reply.

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