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Originally Posted by trains  And , tell me this, how can you tell my i.p is static ?? | If you rebooted your wifi router & modem and still cannot obtain a new IP address, then you have a Static IP address OR may have a sticky dynamic IP address.
Most, if not all, ISP's offer dynamic IP's to their customers by default. Why? Because it is far more cost effective for them to assign you a random IP from their pool of IP's via DHCP.
A dedicated Static IP provided by your ISP costs them more (this is why most ISP's will charge extra for you to have a true Static IP). A static IP is mostly used for web hosting,
From what you've described, I'm willing to bet you have a sticky dynamic IP. Technically, it is considered a dynamic IP from your ISP, but they tend to not change it on reboot (see definition below).
Since it seems you don't have dynamic IP...your options are USB dongle, tethering, or even dial up service.
Web Definition...
A sticky dynamic IP address is an informal term used by cable and DSL Internet access subscribers to describe a dynamically assigned IP address which seldom changes. The addresses are usually assigned with DHCP. Since the modems are usually powered on for extended periods of time, the address leases are usually set to long periods and simply renewed. If a modem is turned off and powered up again before the next expiration of the address lease, it will most likely receive the same IP address.
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