Have moved your post to the Sky Stream section, you originally posted in the Sky Gkass section.
Freezing can be a cause of your local network and it can seem to lock up the Sky Stream puck on occasions.
A quick check up;
Having a good local network broadband reach is key to Sky Stream.
Not just broadband speed to your house and router, but for your local network supply via wifi or ethernet, that can be affected in a busy household.
Best way to test is via a network speed test on each of your Pucks.
Launch Netflix on your pucks (you do not need to be logged into it, if you do not use netflix) and scroll down the left menu to Get help.
Choose Check Network.
Would suggest running the test a few times, over say a half hour period during tests.
What is your speed for each puck?
Also, it may be suffering from interference,, the puck much like a Sky Q box can for some customers suffer from this at times. More often seen as an intermittent blip.
Not always a cure, but the following may help to resolve;
Make sure you have a good 6-8 inches free on all sides of the puck.
Do not stack the puck on top of any other device.
Best not to sit it on a glass shelf. Wood is generally the best.
Make sure the puck is in the open, not tucked away in a cabinet or sat directly behind the TV.
Make sure you have no other devices that can cause interference closeby, like cordless phones, radiators, baby monitors, smart meter in home displays, microwaves and the like.
You should be using the Sky supplied hdmi cable or a high speed equivalent one.
Plus, change both your pucks to following recommended settings set in Settings>
Turn wifi OFF under Network if connected via ethernet.
Set Network standby mode to ON and Overnight power saving to OFF.
More information like the above on the Sky FAQ help pages link here; https://www.sky.com/help/home/sky-tv/sky-tv-stream/fixing-a-problem-sky-stream/fixing-sky-glass-sky-...
Plus, rather than a power reset, tr6 the setting restart in the Sky Stream puck settings instead;
Go to Settings>Systems Management>Resets & Updates
Select Restart device
Your Sky Stream puck will perform a reboot. It will take a few minutes to complete
Sky Community Superuser. What is a Superuser?
Click here to find outSky Stream with two pucks (Former Sky Q and Sky+ customer), Sky Ultrafast + using Sky SR203 hub. Sky Protect kit tester.
My good journey to Sky Stream from Sky Q.
Click here to read
