Bug #1359

High Latency and Packet Loss for China Players Due to P2P Connection Issues

Status:	Open
Priority:	High
Added by:	taimeow on May 11, '26
Assigned to:	Unassigned
Due date:
Reported for:	S06.04 Auto

Steps to Reproduce

No steps to reproduce

Explanation

This is a network-related issue. Since I am not familiar with network service conditions in other regions, I am reporting this bug on behalf of players in the China region only. My friends and I are part of a group of players who play on custom difficulty, and we each have around 3,000 hours of gameplay. About two months ago, we noticed that latency when joining other players’ rooms had increased significantly, with frequent packet loss—a situation that does not align with normal latency levels. This issue has still not been resolved in the latest update.

By checking the Steamworks network connections in the Steam library using the shortcut Ctrl+\, we can see that all players in the China region are now routed through steamSDR [hkg] and cannot establish a valid P2P connection. Both my friends and I have NAT 1 network environments, and even using Radmin LAN to set up a virtual LAN—which we’ve used successfully in the past—fails to establish a P2P connection for Deep Rock Galactic.

I suspect that a recent update altered the Interactive Connectivity Establishment (ICE) utilized by Deep Rock Galactic’s SteamSDR, preventing us from establishing effective P2P connections and instead forcing all connections through a relay server. Given the network restrictions within China, this results in high latency and frequent packet loss during gameplay.

Attached are some screenshots of the Steam network status that I was able to find; currently, all of them show SDR relay traffic. Previously, when P2P connections worked smoothly, they would display either an IPv4 or IPv6 address.

这是一个网络相关的问题。由于不了解其他地区的网络服务情况，我仅代表中国区的玩家反馈这个bug。我和朋友的游戏群体属于custom difficulty玩家，基本时长都在3000h。在两个月左右之前，我们发现进入其他人的房间延迟明显变高，经常出现丢包的情况，不符合正常的延迟情况。直到最新的更新中依旧没有解决。

通过在steam库中使用快捷键ctrl+\ 进行查询steamworks network connections情况可以看到，现在所有中国区的玩家都需要经由steamSDR[hkg]进行中转，无法建立有效的p2p连接，我和我朋友都是NAT1的网络环境，以前一直使用的RadminLan建立虚拟局域网环境也无法有效使深岩银河建立p2p连接。

我猜测在某次更新中改变了深岩银河的steamSDR利用的Interactive Connectivity Establishment，从而无法让我们有效的建立p2p连接而是全部强制使用了中转服务器，而在中国国内的网络环境限制，会导致我们的游戏变得延迟高且频发丢包情况。

附件是一些我能找到的steam网络状态截图，现在全部会出现SDR中转的情况。以前能顺利p2p显示ipv4或ipv6地址。

无论问题是否解决都请反馈。

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