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Comment on I need help troubleshooting slow wireguard tunnel (VPS to home network)

Some devices will drop icmp packets. Does iperf show the same amount of loss?

Can you try a different internet connection such as mobile hotspot just to see if you have similar results? That could help identify it as a vps issue.

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stavefajl@feddit.dk ⁨2⁩ ⁨days⁩ ago
I had to borrow a phone to set up a mobile hotspot.
It has the same speeds inside the wireguard tunnel as when I tested from my wired connection (250 kbps TCP, 170 kbps UDP).
The loss reported by iperf is dependent on the bandwidth that i test with. But as I increase bandwidth from the client the loss grows towards 100%.

I tried testing in reverse (sending from VPS to devices on different networks) with surprising results:

TCP, wireguard: 5-10 mbps

UDP, wireguard: 50 mbps

TCP, no wireguard: 45 mbps

UDP, no wireguard: 250 mbps (saturates download speed on client when compared to speedtest.net)
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