My laptop computer just recently stopped me from accessing 192.168.0.254 for the Pharos system.  I've set up 100s of TP Link CPE510s, but all of a sudden it won't allow be to use that IP.  Get the error message "It looks like 192.168.0.254 closed the connection".  

I can access from my phone via the router, another computer, a tablet... but NOT the HP Laptop.  I've looked at all the settings and can't find anything that is restricting access to this IP.

I've turned off  Windows firewall, Norton Antivirus and still the same message.

I changed the IP address of the CPE510 through another device (think is was the ...254 it was blocking) to ...250 and get the same message.

Anyone have suggestions on where to look to see what is stopping this?  I've chatted with a TP Link tech and he didn't have any suggestions either.