SSH connection to a remote server "can't keep up" with network conditions

[Moshyfawn]

Check for existing issues

• [X] Completed

Describe the bug / provide steps to reproduce it

Prerequisites

Open a remote project in Zed on a server that requires a VPN connection to access. The VPN connection is established on the client machine, not the server.

Description

After waking up the client machine from sleep, the SSH connection to the remote server still shows as "connected" even though the VPN connection has been terminated. When the VPN connection is re-established, the SSH connection does not automatically reconnect. After a while it shows as "pending" before timing out and displaying "disconnected".

Environment

Zed: v0.162.0 (Zed Nightly 083f06322d10b0187da39ab1de0fe0ca4e4f94cd) OS: macOS 14.6.1 Memory: 18 GiB Architecture: aarch64

If applicable, add mockups / screenshots to help explain present your vision of the feature

No response

If applicable, attach your Zed.log file to this issue.

Zed.log

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[ConradIrwin]

@Moshyfawn ugh, that sounds unpleasant.

So the problem here is:

• You put your computer to sleep, this causes the VPN to drop.
• You wake your computer up. Zed immediately starts reconnecting.
• The VPN eventually reconnects
• In the meantime Zed timed out?

Is that the case? Does clicking "Reconnect" in Zed fix it in that situation?

[Moshyfawn]

Is that the case? Does clicking "Reconnect" in Zed fix it in that situation?

It's a little different:

1. Computer enters sleep mode, causing VPN connection to drop
2. Upon waking computer, Zed continues showing "connected" status despite being unable to create new remote terminals or update files. Even after manually re-enabling VPN, Zed takes approximately 10 seconds to detect disconnection
3. Once Zed detects the dropped connection (despite VPN being manually reconnected), it shows "disconnected" status and prompts to retry
4. Using the retry option successfully restores the remote connection