This is a similar question to another current pending topic on this board. I am using a Sprint wireless 4g LTE hotspot to connect to the internet. It is a Franklin R850 model. It only has wifi connections- there is no wired, ethernet, or USB allowed. I am able to use this with all kinds of devices and it connects every time. But now with only ONE particular mini laptop, it will not connect.
About this problem laptop:
* it previously did connect but now won't
* it has windows xp installed, but I now dual-boot with a usb linux stick
* when I boot with linux the wireless requests an IP address, and connects fine
* when I boot with windows XP, it hangs on requesting IP address, then says "limited connectivity", then switches to "connected", but does not ping any address
* If I bridge the LTE hotspot to a router and use the ethernet cable OR the wireless connection to the router, the connection works
* if I connect to any other wifi signal it works
* when it gets the bad connection, it shows a local IP address, but I cannot even connect to the local hotspot settings page
At the present time, I have multiple android devices, multiple pc's with xp all able to connect to this hotspot via wifi, and this exact pc will connect if I boot under linux. It is the same wireless adapter (with the same MAC id), which I think might be part of the problem.
It appears the R850 hotspot is not assigning an IP address to this device when it connects in windows xp. Only this ONE DEVICE !!! And only under windows! And only for a direct connection, no problem thru an external router! Clearly this hotspot does not "like" this machine (under windows xp) for some reason.