It seems like you're experiencing connectivity issues with LAN on Windows 7 within a domain environment. The fact that the WLAN stays connected without any drops suggests that the issue might be specific to the LAN connection or its configuration. Setting a static IP for the LAN connection seems to provide a partial solution by keeping the connection stable for a certain period. Here are a few suggestions and steps you can take to troubleshoot and potentially resolve this issue: 1. Check Network Adapter Settings: - Ensure that the LAN adapter settings, such as speed and duplex settings, are correctly configured. Mismatched settings can cause intermittent connection drops. 2. Update Network Adapter Drivers: - Make sure that...