Internet connectivity

Hello Sally,
Thank you for the information.
We would request you to run AVG remover tool to completely remove AVG and then re install it.  
Please  click this link http://download.avg.com/filedir/util/AVG_Remover.exe to download and "Run" the AVG Remover tool.
1. Please select the AVG products which are shown in the remover tool window and then start removal process.
2. After the remover tool process is successfully finished, restart your computer.
3. After the restart,  manually delete the AVG Remover folder in the C drive of My computer.
To reinstall please follow the article http://avgclick.me/InstallFree .
Please feel free to get back to us for further assistance.
Thank you.

Sally, What status is showing on your AVG User Interface?.
AVG Guru

I had to disable the AVG network filter adapter.  This solved the internet problem on my Dell laptop, but does this prevent any virus protection?  Thanks

Alan, AVG (free) shows protected status.