Initial Ping Timeout - Do I Need Another Port?

[borgdrone7]

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I'm using Sunshine v2025.327.14417 on Ubuntu with Moonlight (Windows) over Eduroam WiFi. VPNs and most UDP are blocked, so I use a VPS with FRP to forward ports over TCP and UDP.

Ports forwarded (TCP + UDP via FRP):

• 47984–48010

Ping Timeout must be set to a very high value like 1000000000, or the session disconnects with "Initial Ping Timeout". Once connected with ping timeout set to very high value, the stream works perfectly with no lag, using NVENC.

Are there any other required ports that I may be missing for the initial ping? If not, what are the downsides of keeping ping timeout extremely high like this as everything works without any issues when I set it?

Thanks!

[ReenigneArcher]

Ports are listed in the Sunshine config UI: https://localhost:47990/config/#port