Since upgrading from android 7 to android 8 via my phone's official update, I'm now experiencing dreadful problems with wifi dropping signal all the time. 
I never had this problem before. The wifi is fine for my laptop, it is not the router.
I have even done a factory reset today but the problem is still there!
The phone is a Samsung Galaxy J3 (2017).
Software information is:
Android version 8.0.0.
Samsung Experience version: 9.0
From what I can see there doesn't seem to be a straightforward way of rolling back to android 7 but the phone is extremely difficult to use in its current state. Is there a fix for this?
I never had this problem before. The wifi is fine for my laptop, it is not the router.
I have even done a factory reset today but the problem is still there!
The phone is a Samsung Galaxy J3 (2017).
Software information is:
Android version 8.0.0.
Samsung Experience version: 9.0
From what I can see there doesn't seem to be a straightforward way of rolling back to android 7 but the phone is extremely difficult to use in its current state. Is there a fix for this?