New macbook disconnects 5ghz
I have a new MBP purchased about two weeks ago. If I use the 5ghz WiFi, it will work for a little while then although the WiFi stays connected, no internet is available. If I ping the router (a Virgin media super hub 2), I get constant timeouts. Re-booting the MBP or the router resolves the issue for a short period, then it fils again.
After extensive research I have:
Created a new network on MBP.
Reset all the network preferences by removing the files and letting the MCP recreate them.
Changed the channel on the router from auto to a higher range.
Changed the DNS settings to use open DNS.
Created a unique SSID just for the MBP.
Reserved an IP address for the MBP.
All of the above and some more tips found in forums. I have also reversed all of the above to no effect.
The MBP maintains a consistent connection using the 2.4ghz band. My old MBP (2012) running Yosemite never had this issue.
Any help gratefully received, thank you in advance.
MacBook Pro (13-inch Mid 2012), OS X Yosemite (10.10.5)