Having problems enabling tethering - this is on a Telecom Sourced Nokia Lumia 625.  In mobile networks, maximum connection speed is set at 4G but when trying to enable WiFi hotspot, the phone says no connection available?  Internet works fine for emails etc while it's set to 4G....

Changed maximum connection speed to 3G and then tethering works a treat.   Have tested it with 2 other 625 devices in 3G coverage areas and had the same problem.

Just curious to see if this is device specific or WP8 specific...