Hello kostantinos,
Could you please:
- Shut down the Shake
- Disconnect power and LAN cables, wait for 5 minutes
- Reconnect LAN and power cables (in this order) and turn on the Shake again
- Wait for ~30 minutes, download the logs from the Shake (if needed, instructions here: Please read before posting!) and attach them to your next answer?
They will help in checking what is going on in more detail.
Thank you!