I live 15 miles from town. it is a regular phone line that is just used by the laptop.

call your ISP , in your town.
we are in USA and each state and areas, have different ISP

so only using local, phone directly will give you a clue.
ASDL is run off your land line phone cable.
many towns do not have this now.
when posting tell the town you live, nothing else matters,

choices can be.
Dial up (landland) nah.... now this is like buggy whips.
ASDL landline. (not to be confused with VOIP.)
Cable TV model internet.
FIOS (fiber to home)
Hughenest (Satellite dish)
3/4/5g WLAN, from Verizon or Tmoble etc.

These are ideas only as there are many things that could improve gas mileage.
When was the last time you had a tune up? (Spark plugs check for bad sensors . When was the Air filter changed..
do you always check the air pressure in the tires. Low tires can bring your mileage down five miles per gallon or more.
Do you drive with fast starts and stops.
Do you run short trips? Short trips does not let the engine warm up to the right traveling temperature. I live in town and I get about 15 miles per gallon in town but if I drive 20 miles or more I get 24 or more with my Buick.
You will get less mileage if you drive in real cold weather.

100 miles.

Count your blessings. I live in Canada and a gallon of fuel is worth $ 4.40

Try using a different channel. A higher one. Default settings often get interference from cordless land line phones (up to a mile away!!). Channel change usually resolves the issue.

Hey Anon, The GM transmissions that are bolted to V8's need to have regular service when they are newer... fluid and filter every 50K for the first 150K, with a full fluid exchange at 150K,.. IF this has NOT happened to this vehicle, its time for a "rebuild-tune-up". I have seen this toooo many times... It should costs around $1400 -$1600..
I use a friend that has a transmission shop, he is a drag racer too...they KNOW how to repair transmissions to make them last! If you live near somewhere that has a drag strip.. go there and ask some of the racers who is the best automatic transmission man in town... USE HIM!!

ya its becuz of your service area....i use to live in a small town with little cell phone sevice, i would be about 10 miles from the city and about 50 text and pic messages would blow my phone up. not alot that can be done about it

Sounds to me you dont have a problem. Every once in a while, if the car was hot when you shut it off and tried to restart it after 1-3 min of sitting, you might have to crank it over for a few seconds, to clear out the engine. I wouldn't worry about it if it only happens once in a while.

Most of the Cordless 2 line phone BASE UNITS have the connections on the back for line1/line2 or seperate line 1 and line 2 connection. If you have the type of phone with the line1/line2 jack you have to be sure that both lines are on the same wall jack, otherwise make sure the phone you purchase has seperate line jacks and you will have two phone cords going to the base unit.

Do you have internet access? dial-up, DSL or Cable? or is this a LAN only? What operating system? XP, Linux, Vista?
The software CD that comes with it is installed first, then you are asked to insert the USB NIC. That will make it 'work", but there must be a wireless network in range to connect. Do you have a wireless access point? One mile is too far for you to access any free WAPs in town, like Starbucks or something. If it is a laptop, I suggest a ride into town to test it out.