| Shared WiFi |
Multiple users may appear linked through one network |
This can weaken the clean first-time signal |
| Public network |
The IP may already have broad usage history |
This can look higher-risk to some systems |
| VPN / proxy |
Artificial routing can trigger suspicion |
This often harms trust instead of helping |
| Carrier IP reuse |
Mobile-data IPs can still have earlier activity patterns |
A new SIM or fresh session does not always mean a fresh signal |
| Retry behavior |
Repeating the same claim on the same network usually does not help |
Blind retries can keep reinforcing the same problem |