Fusionnet throttling my upload speeds?

Hey folks,

I’m trying to debug what feels like upload throttling / traffic shaping on my Fusionnet connection, and I’m a bit stuck.

I have a personal server hosted in Australia that I access regularly for file transfers. Most of the time I either upload files via a browser over plain HTTP, or I mount the server as a network drive on Windows (SMB / WebDAV-style access so I can copy files normally).

On my Fusionnet connection, uploads to this server are extremely slow (1-2 Mbps on 300 Mbps plan), almost unusable. Downloads are mostly fine, but anything outbound crawls. Usual other services like Gdrive/dropbox work as intended and are supafast.

What makes this stranger is that the exact same laptop, same server, same files, when connected to my friend’s Airtel, works completely normally. Upload speeds are stable and as expected (10-15 Mbps on 100 Mbps plan). Because of that, I’ve ruled out the server, the machine, file sizes, and Wi-Fi vs LAN.

Given how repeatable this is, it really feels like ISP-side traffic shaping or DPI, especially affecting HTTP uploads, and SMB/WebDAV/network drive writes. This doesn’t feel like random congestion, more like outbound traffic patterns being selectively throttled.

So what’s the practical way around this? Would routing traffic through a VPN usually bypass this kind of throttling? Or is switching everything to HTTPS, changing ports, setup one of those custom GPON routers or tunnelling via SSH/SFTP the more reliable fix?

Any help would be amazing. :slight_smile:

Probably lack of quality peering.

fusionnet peers vs airtel peers

try doing a tracert while on fusionnet and see the route the packets take to the destination server. it will probably be signficantly longer than the path using airtel, and if you check the IPs for the hops it’ll give you more info on if there’s a network in the transit path that’s choking.

corollary to hanlon’s razor: never attribute to malice what can be adequately explained by cost-cutting.

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Australia, Taiwan and Korea are notoriously hard with peering. If your ISP isn’t directly connected, you are going to have a bad time.

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Humm, thanks a bunch, let me look into this and circle back.