Hi Peter,
Did you Uninstall  net nanny correctly?

https://intercom.help/netnanny-kb/en/articles/1005185-how-to-uninstall-net-nanny-on-mac

Kind Regards,
Ronni

 Ronni Brown’s iPad Pro 12.9-inch 256GB 


> On 17 Apr 2020, at 11:05 pm, Peter Crisp <[email protected]> wrote:
> 
> Hi Ronnie, yes sorry I didn't mention that, I had many times done a full 
> reboot of both the Macbook and the wireless router. 
> 
> Short story is I have resolved the issue just in the last few minutes. I 
> looked at the error code in the Safari window when the failure was occurring. 
> When I did a google search (on my iPad) it indicated that the likely cause 
> was a firewall protection device was the cause. The error code was 
> "NSPOSIXErrorDomain" which doesn't really tell the reader too much until a 
> search. I browsed to the various library sub-folders looking for firewall 
> device files - and I recalled many years ago I had netnanny and I found one 
> of those files sitting there. So I trashed it. Upon restarting the Macbook, 
> immediately the Dropbox icon lit up - and in turn the safari browser now 
> works. Clearly not uninstalling correctly previously caused this but very 
> annoying that it took 3 hours of my time to find and unpick this. So I am 
> back in business. 
> 
> I hope the main reason has been corrected to with the slow Wifi connection 
> time being resolved. We will see if the lovely Mrs C is happy going forth.
> 
> All the best to you all.
> 
> Kind Regards
> 
> 
> Peter Crisp
> 
> 
> ----- Original Message -----
> From:
> [email protected]
> 
> To:
> <[email protected]>
> Cc:
> 
> Sent:
> Fri, 17 Apr 2020 22:36:09 +0800
> Subject:
> Re: Macbook Wifi connection ok but no Internet connection
> 
> 
> Hi Peter,
> You haven’t mentioned if you have:
> 1. Restart the MacBook and your wireless router even if other devices can 
> connect to the Internet.
> 
> Kind regards,
> Ronni
> Sent from Ronni's iPhone 7 Plus
> 
> > On 17 Apr 2020, at 10:20 pm, Peter Crisp <[email protected]> wrote:
> > 
> > Hi folks, I have been trying to resolve for some hours on my wife’s 
> > Macbook. It is a 2011 unit 10.14.6 Mojave OSX and she was having very slow 
> > Wifi connection from sleep issues. So i deleted the Wifi connection and 
> > re-established it.
> > 
> > The issue I am now having done this is the inability to get Internet 
> > connection. I have truly watched and read many many threads on this issue 
> > and carried out the ‘repair’ ideas but none has worked. I can send a text 
> > over iMessage (within the house) and the text is received - so Wifi is 
> > working, but there is no connection outside of the house. All other devices 
> > in the house are fine. 
> > 
> > With the Dropbox icon in the menu bar, I can see in an instant if a 
> > Internet connection gets connected - it remains greyed out at the moment - 
> > though normally is dark font indicating a connection is established. 
> > 
> > Tried all sorts of resetting ideas. New connection in System Prefs>Network. 
> > Delete the plist files. I think I may have even resolved this previously 
> > (many years ago). As it is a long time between issues, I basically start 
> > from scratch each time to sort it. 
> > 
> > Many of the clips indicate resetting the Wifi network config will resolve 
> > but not for this one. Seems I have a unique set of circumstances here. 
> > 
> > I hope some of you may have some ideas.
> > 
> > Regards
> > 
> > 
> > Pete
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