The original question is this:
New MacBook and i now can't connect to a wifi location. I've travelled with it for veral weeks successfully connecting to networks. Now at this new location I'm getting connection timed out. In the past I could connect witout making any settings changes. I've looked at keychains and don't see the network, I've cut and pasted the password to make sure it wasn't a typo, turned off wifi restarted, etc. My phone, Samsung, will connect fine as well as my Kindle but not this Mac.
I had the admin restart the router but still the same time out.
After lookibng at a few things posted I finally reset the pram/nvram and when I tried to access the nework it worked. I opened a webpage without difficulty. I looked under system preferences and I was connecting to the router on channel 13 which is supposed to be out of bounds for a US MAC.
Anyway when I wnet to go to another web page the broweser hung.As I was impatient I restarted the system. After reboot I was experiencing the same thing as above. Tried the pram/nvram reset - not sure how long to holdit but I did it longer than the previous one.
Didn't work as I can't connect.