Sometimes the "No Bag Entry"  can be a result of a misconfigured system time and date.
 
First, verify that the network connection is working properly (which you can do from the **Utilities** > **Network Utilities**.

If the network is working properly, try **Utilities > Terminal** and use the command `date` to check that the clock is correct.

If it is incorrect, this can cause a "No Bag Entry". You can update it with:

`date -u [month][day][hour][minute][year]` (or just `date [month][day][hour][minute][year]` for older machines)

Example: `date -u 0711141516`

Note: The date you enter should be in UTC and if it's 2:02AM UTC, you'd enter 0202 as hour and minute.