Network & Connection
Fix "Reconnecting…" loops, choppy streams, and bandwidth-related issues.
Network & Connection
InterMIND needs a stable connection in both directions. Most "InterMIND is broken" reports are really network issues.
Bandwidth Requirements
| Activity | Minimum | Recommended |
|---|---|---|
| Audio-only meeting + translation | 1 Mbps up/down | 2 Mbps up/down |
| HD video meeting + translation | 2 Mbps up/down | 5 Mbps up/down |
| Screen sharing | +1 Mbps up | +2 Mbps up |
Run a speed test to check your real bandwidth — not the rated speed of your plan.
"Reconnecting…" Loop
| Symptom | Likely cause | Fix |
|---|---|---|
| Banner keeps flickering "Reconnecting…" | Packet loss on the route | Switch from Wi-Fi to wired; move closer to the router |
| Reconnects only when video is on | Bandwidth not sufficient for HD video | Turn camera off; InterMIND auto-falls-back to audio-only |
| Reconnects when others share their screen | Total downstream bandwidth exceeded | Ask the sharer to lower share quality or close other downloads |
| Reconnects in offices with strict firewalls | UDP / WebRTC ports blocked | See Firewall & VPN below |
Choppy Audio or Video
| Symptom | Likely cause | Fix |
|---|---|---|
| Robotic / chopped voice | Packet loss > 5% | Switch to wired, close bandwidth-heavy apps (cloud sync, video calls in other tabs) |
| Video freezes for a few seconds | Bandwidth spike consumed by another app | Pause Dropbox/Google Drive sync, OS updates, BitTorrent |
| Audio cuts but video is fine | Audio uses different codec — packet loss on audio path | Toggle camera off and on; if it persists, switch network |
| Issues only when on VPN | VPN adds latency and may rate-limit UDP | Disconnect VPN if your IT policy allows |
Firewall, VPN, and Corporate Networks
InterMIND uses WebRTC, which needs specific ports open.
| Port / Protocol | Purpose | Required |
|---|---|---|
| TCP 443 | Signaling, fallback media | Yes |
| UDP 3478 | STUN (NAT traversal) | Recommended |
| UDP 1024–65535 | Media (audio, video, screen) | Recommended; falls back to TCP 443 if blocked |
If your network blocks UDP entirely, InterMIND falls back to TCP 443 — it works but quality is reduced. If you're on a managed corporate network, ask IT to allow *.intermind.com and these ports.
Translation Cuts Out Mid-Sentence
| Symptom | Likely cause | Fix |
|---|---|---|
| Translation stops, then resumes after a delay | Speech stream interrupted by packet loss | Check connection indicator; see Translation Quality |
| Translation works at the start of the meeting, fails after 30+ min | Bandwidth degraded over time (Wi-Fi roaming, network congestion) | Reconnect on a stable network |
Diagnostic Steps
- Run the WebRTC Browser Test — it reports latency, packet loss, and TURN reachability
- Open browser DevTools → Network tab → check for failing requests to
*.intermind.com - Try a different network (mobile hotspot) — if it works there, the office network is the issue
Related
- Browsers & Devices — Browser-level settings that affect connection
- Meeting Controls — Connection indicator in the control bar