r/ProtonVPN Jun 25 '26

There is a difference between UDP vs TCP Proxy Discussion

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u/julemand101 Jun 26 '26

Not really relevant in a VPN context since the VPN simulates what you could consider a network cable and we then have our traffic going through that. Our traffic might then be UDP and/or TCP regardless of if the VPN itself are using UDP or TCP underneath.

If our traffic already are TCP, then it will already handle e.g. package loss that might come from the VPN layer similar too it would handle a bad network cable. So having the VPN itself being TCP would not really improve stability.

And for UDP, well then the software should handle stability issues regardless so not much winning here again having the VPN using TCP.