Livekit subscriber connection won't connect on some network connections

### Steps to reproduce

Main tracking bug for this is https://github.com/livekit/livekit/issues/2046 in Livekit and has all the info. This is so it has a place in our own bug tracker too.

### Outcome

#### What did you expect?

#### What happened instead?

### Operating system

_No response_

### Browser information

_No response_

### URL for webapp

_No response_

### Will you send logs?

No

Start with the linked LiveKit tracking issue 2046, since this issue says it contains the reproduction details. Investigate subscriber connection failures on the affected network connections and confirm the web app can establish a LiveKit subscriber connection there; no local files or tests are named in the issue.

Written by the indexing model from the issue text.