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Browsing Error!!! Security Cerificate....

puppers

puppers

macrumors member
Original poster
Oct 26, 2012
97
0
Detroit, MI
For the last day and a half I keep getting this. Everything from facebook to google reader. At same time most other sites are fine. When it does happen it is usually when I try and type something in google chrome address bar to do a search. Also last nite the same attached screen said google was "icloud.net". When open safari and do the same, say type in google, it will show a security certificate is invalid, and takes me to adobe???? I also attached that.

Last night after trying to figure out, woke up and all was fine. Now its doing it again.

I have searched Google to no avail. ANY help would be appreciated!

Thoughts?

SCREENS:
qnPCj.png

zT7pW.png
 
gnasher729

gnasher729

Suspended
Nov 25, 2005
17,980
5,565
Here's what is likely happening: When you type for example "www.google.com", the first thing your browser does is asking some server, most likely a server run by your ISP, where http://www.google.com can be found. And then it follows the instructions.

The first message shows that your computer got the wrong instructions - the place it was directed to was not http://www.google.com. If this happens at work, call your help desk. If this happens at a hotel, or some other network away from home, stay away from that network.

If this happens at home: One thing you can try: Go to System Preferences -> Network -> Advanced -> DNS. In the "DNS" tab, remove all entries that are there using the "minus" button, then use the "plus" button and enter "8.8.8.8". That is Google's DNS server, and the DNS server is the server telling you where websites can be found. So your computer will now not ask your ISP, but it will ask Google instead.
 
puppers

puppers

macrumors member
Original poster
Oct 26, 2012
97
0
Detroit, MI
gnasher729 said:
Here's what is likely happening: When you type for example "www.google.com", the first thing your browser does is asking some server, most likely a server run by your ISP, where http://www.google.com can be found. And then it follows the instructions.

The first message shows that your computer got the wrong instructions - the place it was directed to was not http://www.google.com. If this happens at work, call your help desk. If this happens at a hotel, or some other network away from home, stay away from that network.

If this happens at home: One thing you can try: Go to System Preferences -> Network -> Advanced -> DNS. In the "DNS" tab, remove all entries that are there using the "minus" button, then use the "plus" button and enter "8.8.8.8". That is Google's DNS server, and the DNS server is the server telling you where websites can be found. So your computer will now not ask your ISP, but it will ask Google instead.
Click to expand...

Thanks for the help. I have that set up that way. This is my home. I have the only MAC, everyone else has PC's. There are several iPads and iPhones, but they are not affected at all.

Here is my TCP/IP settings:
WydzX.png


And my DNS:
TvD29.png


Here is my Cysco Router:
1w2P4.png
 
gnasher729

gnasher729

Suspended
Nov 25, 2005
17,980
5,565
192.168.1.1 would be the DNS server in your router, which is most likely connected to the DNS server of your ISP. 8.8.8.8 is the Google DNS server, and 8.8.4.4 is a second Google DNS server. If problems don't go away, try removing the 192.168.1.1.

If your PCs work fine, you could try to find the DNS settings on those PCs (sorry, but I wouldn't know my way through Windows well enough) and use whatever settings work there. Or compare with your iPad settings.
 
puppers

puppers

macrumors member
Original poster
Oct 26, 2012
97
0
Detroit, MI
gnasher729 said:
192.168.1.1 would be the DNS server in your router, which is most likely connected to the DNS server of your ISP. 8.8.8.8 is the Google DNS server, and 8.8.4.4 is a second Google DNS server. If problems don't go away, try removing the 192.168.1.1.

If your PCs work fine, you could try to find the DNS settings on those PCs (sorry, but I wouldn't know my way through Windows well enough) and use whatever settings work there. Or compare with your iPad settings.
Click to expand...

Thanks. I added the Google ones and did not add the router ones locally on my Air. Will test that. Unfortunately it comes and goes.

Again thanks for the help and happy holidays!
 
B

Bob Coxner

macrumors 6502a
Mar 24, 2011
854
58
What happens when you use a browser other than Safari? Try Chrome or Firefox and see what happens.
 
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