Apart from rebooting the hub, have you tried rebooting the mini box?
If you spend most of the time downstairs it would be a good idea to swap the the boxes around. That way you will have the main box in your prime location so you can watch the recordings, and the mini boxes upstairs in the room least used.
Is the 'offline' box connected by wifi or ethernet cable?
If it's connected by wifi, is it using the 2.4GHz or 5GHz band?
2.4GHz is a stronger signal but slower than 5GHz - you don't need the faster signal for the 360 box, so if you have problems on 5GHz change to 2.4GHz.
This section details how to separate the 2 bands if you haven't already done so:-
Open a browser and log into your hub 192.168.0.1 - then navigate to the following settings so you can differentiate between the signals.
Advanced Settings > Wireless > Wireless Signal > click on Disable Channel Optimization at the bottom then click on Apply Changes.
Now go to Advanced Settings > Wireless > Security > Add a 2 to the end of the 2.4GHz Channel name, then further down add a 5 to the 5 GHz Channel name and click on Apply Changes.
You can leave the passwords the same as they are. Then log out of the hub at the top of the page
You will need to reconnect all you Wi-Fi devices some will want to connect to 5Ghz and some to 2.4GHz and some will connect to either.
You could also do a search for an app such as wifi analyzer which tells you the strength of the channel you are connected on, and also shows other channels so you can decide if you want to change the channel number on your hub
Advanced Settings > Wireless > Wireless Signal > beneath both the 5Ghz and 2.4GHz sections click on the manual button, and in the drop down box click on the channel number you want to change it to, then scroll down and click on Apply Changes.
I wouldn't expect a factory reset to help the 360 in this instance but if you do decide to try that then it's only a partial system reset and not a complete factory reset. You are given 2 options
Choose Keep Recordings, that means you won't lose your recordings and any planned recordings or series links you've set up. You will have to sign into your apps such as iPlayer, Prime, Netflix and ITVX again. Also Match frame rate and Standby power consumption will go back to their default settings if you have changed them.
The Service you do for others is the rent you pay for your room here on Earth - Muhammad AliLove, love and love, forever - Pele
I don't work for Virgin Media.
I'm a Very Insightful Person, I'm here to share knowledge. Learn more
Problem solved? Click to mark as a Helpful Answer, or use Kudos to say thanksThe do's and don'ts.
Keep the community welcoming for all. Follow the house rules