Giga Hub 2.0: PPPoE passthrough/2nd PPPoE session capped (average 330 Mbps) on 3 Gbps plan

[Velaris]

Hello,

I'm on a 3 Gbps plan and I'm seeing a repeatable/hard throughput cap only when using PPPoE on a downstream device (PPPoE passthrough / second session).

My setup:

- Bell Giga Hub 2.0
- Downstream router: UniFi Cloud Gateway Fiber (UCG-Fiber) connected to the Giga Hub 10G port

What works:

- If the UCG-Fiber WAN is set to DHCP (e.g. behind the Giga Hub 2.0/double NAT), I can reach full speed (~3 Gbps).
- If my PC is behind the Giga Hub 2.0 on DHCP, my PC (1GbE NIC) reaches the expected ~1 Gbps.

The problem (reproducible):

When I establish a PPPoE session from a device behind the Giga Hub, throughput is capped around ~300–330 Mbps.

Repro 1: PPPoE from UCG-Fiber

- UCG-Fiber WAN set to PPPoE using my b1 credentials
- Result: ~300–330 Mbps (repeatable), despite 3 Gbps plan

Repro 2: PPPoE from a Windows PC (bypassing UCG-Fiber)

- PC connected by Ethernet to the Giga Hub 2.0
- PC NIC: 1GbE, cable: Cat6A
- Created a Windows "Broadband (PPPoE)" connection using the same b1 credentials
- Result: same cap at ~300–330 Mbps (repeatable)

Because the same cap occurs even when PPPoE is established directly from a PC (*no* UniFi router involved), it points to the Giga Hub 2.0 PPPoE passthrough / secondary PPPoE session path rather than my router.

Can you confirm:

- Is this a known issue on the Giga Hub 2.0 (firmware-related)?
- Is there a firmware update or hardware replacement option to resolve PPPoE passthrough speed caps?

Thanks

[RobotG]

I think they are aware of this situation now and that they need to do something about it. 

[Vanadiel]

This is likely not high on the radar due to it affecting only a small amount of people, and it's also possible this is by design rather than an error or bug.

[taid]

Just received the Giga hub 1.0 in the mail. Will replace the Giga Hub 2.0 later today and test out the issues. Hopefully this will fix it permanently.

 

[RobotG]

I called tech support yesterday afternoon. It arrived this morning. It has the old 2.14.1 firmware. Connected up my router and logged in PPPoE with the new pass and everything seems to be working again. Full speeds have been restored. Let's just hope they don't push a new firmware update. The tech said it shouldn't happen because they are aware of the situation now. Also, the phone call yesterday took around 10 minutes with the first point of contact. The tech know what my problem was, had a solution, so I did not even need to ask for an escalation. 

[Lundon44]

This is on the Giga Hub 1.0 or 2.0?

[RobotG]

I was mistaken and thought I had a 2.0 before. I had a 1.0 all along and it was replaced with another 1.0.