Show HN: We Fixed UniFi's Slow PPPoE Performance with PPPoE Half-Bridge
As a result, whenever you put a PPPoE-based ISP connection behind one of these gateways, throughput takes a serious hit and never comes close to the rated line speed. This has been well-documented in the UniFi community: In short, UniFi gateway PPPoE performance is pretty grim: UDM Pro/SE: Speed test results typically land between 1200 Mbps and 1500 Mbps on PPPoE. UDM Pro Max: Typically between 1400 Mbps and 1800 Mbps on PPPoE.
- ▪As a result, whenever you put a PPPoE-based ISP connection behind one of these gateways, throughput takes a serious hit and never comes close to the rated line speed.
- ▪This has been well-documented in the UniFi community: In short, UniFi gateway PPPoE performance is pretty grim: UDM Pro/SE: Speed test results typically land between 1200 Mbps and 1500 Mbps on PPPoE.
- ▪UDM Pro Max: Typically between 1400 Mbps and 1800 Mbps on PPPoE.
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| Original publisher | ArcBox Blog |
| Canonical URL | https://arcbox.dev/blog/unifi-pppoe-half-bridge-acceleration |
| Publication time | Mon, 03 Aug 2026 08:34:24 +0000 |
| Retrieval time | 2026-08-03T10:05:42.759Z |
| Last seen | 2026-08-03T10:05:42.759Z |
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Opening excerpt (first ~120 words) tap to expand
Prologue At ArcBox Labs, our office has a 5 Gbps PPPoE connection behind a UniFi gateway, and we could never get anywhere close to that speed, and our UDM Pro Max is beginning to struggle and even affecting operation stability: This matches the behavior observed by many other UniFi users: https://community.ui.com/questions/a6f24f8c-6b83-4617-ad33-b5af0b32d8dc?replyId=2808b654-e4be-4ac2-b199-09c1b1a0fbac https://community.ui.com/questions/What-is-the-max-performance-for-PPPOE-on-UDM-Pro-With-Solution/67057f47-509e-4f8b-8edd-5dc29f380759 https://www.reddit.com/r/Ubiquiti/comments/1dto912/story_time_investigating_slow_pppoe_speeds_on/ https://forum.level1techs.com/t/unifi-and-bad-pppoe-speeds-any-solutions/224548…
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