internet issues with mac OS 10.15.1

I've had the same issues "Apple Support" fixed it with various power off's and on in different modes, then about a week or so later I hit another problem with the Internet being very very slow I'm connected however it keeps looping round from WiFi: looking for Networks... to WiFi On. I've been told by Apple support that my Broadband supplier Sky need to give me a WPA2 connection (improved security) I was (a long time) on the phone to Sky technical who know nothing about this.. I'm going to try Sky again tonight.

Here's the report. I can't see an obvious problem.

it's a common problem of this version .... one solution is to try reboot in secure mode https://support.apple.com/it-it/HT201262

Same problem. Was on the phone with support for an hour but no solution.

First thing is to uninstall Intego.

Also: the Toast software is extremely old, it is almost certainly not working in Catalina, so you might as well uninstall it.

when in safe mode on my iMac and MacBook Pro, its works 100% in safe mode.

Its a bug in the upgrade.

Agree 100%. The 2 things you don’t screw up are internet access and email....

Uninstalling my Intego virus checker has done the trick for me.

That worked for me too. Once I turned off netbarrier the internet connected fine. Bootup takes longer than usual since the upgrade. Thanks for the fix.

Yep, antivirus. Uninstalled Trend, all OK.

I left VirusBarrier running, and just turned off protection in the Netbarrier preference pane. I'll just leave it off until one of the two, either Apple or Intego comes up with a fix.

Intego have told me that they are aware of the problem and are working on a fix. They'll e-mail me as soon as they (or Apple) have a fix.

https://support.intego.com/hc/en-us/articles/360010209360-Internet-Connection-Issues-with-macOS-Catalina-10-15-1

The fix is actually simple. Do not install intego or other useless stuff.

Yes it fixed it, but sitting home I don't need Intego, but it has saved me a couple of times in other countries where the internet is not my home's internet.

It is of course your preference