Wi-Fi freezes short periods on my Vostro 3520 Core i5--1235U

Sometimes the Wi-Fi freezes for e few seconds and then works again. I have found several online having this problem with the AC 9462 on different computers. I also ran the Intel System Support Utility. It reported several errors of internal faults on the AC 9462.

I found a solution here https://answers.microsoft.com/en-us/windows/forum/all/intel-wireless-ac-9462-not-working/6da58b94-8fd9-48a9-b6c2-8700ac1e7896?page=3

Somehow this worked (uninstall driver, turn off computer, wait 30 minutes, restart). I did this several weeks ago and it worked with no problems until yesterday. I did it again and now it works.

What does DELL know about this? Should I send my computer to be repaired? Will it help?