Dashboards do not re-enumerate values after disconnection and reconnection

[rzblue]

Describe the bug Dashboards (so far I've tested glass, shuffleboard, and outlineviewer) don't enumerate values after they are disconnected and reconnected (ie. by removing and replacing the rio ethernet cable, or by redeploying code)

Disabling and re-enabling the NT client connection in glass/outlineviewer appears to resolve the issue each time it happens.

The issue also occurs with ShuffleBoard- values remain greyed out, and the NT tree does not repopulate.

The issue also occurs when re-connecting after redeploying code.

To Reproduce

• publish data to NT from roborio
• Connect to roborio NT server using glass
• observe entries in NT view
• unplug rio ethernet cable
• observe values disappear
• plug rio ethernet cable back in
• values do not come back (but log and title bar indicate a reconnection)

Expected behavior Values appear back in the NT view after reconnection

Additional context The rio I've tested with is currently not on an frc control system; It's on my home network with a 192.168.1.X IP addresss. However, i've tested connection discovery with both mdns and giving glass the IP directly with no behavior change, so i don't believe this has anything to do with the issue.

WPILib 2024.1.1-beta-2 Windows 11

[Starlight220]

Maybe this is somewhat causing the Shuffleboard values disappearing issue?

[PeterJohnson]

I believe this issue is new this year. It only affects Windows so it probably related to the networking changes, but I need to debug it.

[AngleSideAngle]

My team continues to experience this in WPILib 2024.1.1 on a Windows 10 laptop.