It is very likely something in your wireless router. Unless you are using a 3g iPad with the 3g cell towers triangulating your position, your iPad uses something that is broadcast from wireless routers around you...and you do not need to be connected to that router for this to take place. The iPad appears to read the strongest wifi signal and sets your location based upon what location that particular router you are detecting is reporting.
I bought two wifi iPads, one for myself and one for my Mom. I set both up at my house. I have the widely popular Linksys wrt54g2 router. Both iPads hit my location very quickly and are quite accurate. I then took my Mom's iPad to her house with a Tenda router and the map starts showing my location as South Korea! If I walked down the street one way about 100 yards, it would lose her router's signal and pick up one down the street, jumping the location back to my vicinity. When I walked back to her house, it took me back to Korea. I walked up the street in another direction and back again, with the same results.
After thinking this through, even considering that maybe her house was on top of some phenominal magnetic or radioactive deposits, I finally got down to unplugging her router and bam! I was instantly transported back to a logical location position. I took her iPad back to my house, and location works correctly on both iPads. I can also recreate the issue with my own iPad. So there is no doubt it is her router. BUT, I cannot find anything in the Tenda router's setup/settings web page that fixes this. I have changed the date and time and time zone on the router, rebooted everything multiple times and still no luck. I wanted to share this with the community so anyone else with similar issues might gain some insight.
I'm going to dig into the router a little deeper and come up with a solution to get it to report it's location properly. I have a feeling it is something in its SSID broadcast since I have validated that it is not necessary for the iPad to be connected to a router in order to get its location.

Have you checked the Tenda website (http://www.tenda.cn/) to make sure you have the most current firmware?

My theory, as just posted on a similar thread, is that when the Google car drives down your street taking StreetView images it also grabs the MAC addresses of wireless routers that is can pick up and stores them, with approximate locations, in a database.

As for the Korean location, perhaps we have run out of unique MAC addresses and they are repeated in various parts of the world. I not really sure about the that though.


This Apple KB sheds some light on the subject iPhone and iPod touch: Understanding Location Services

google.com/support/forum/p/Google+Mobile/thread?tid=6bef39e72c3abbb5&hl=en Despite fixing router location online using MAC address, WiFi devices still show up 3000 miles off on Latitude - Google Mobile Help

You are going to have to copy/paste the link above because Im still too new here on this forum to post active links

I just found the link above showing that the problem may be related to google's map database having an incorrect location associated with the router's Mac address. It also appears there is no way to fix it with a wifi iPad alone. The database uses the Mac address as the main record. It stores cell tower, wifi, and gps location data that is reported along with that Mac address. If I get several people with cell phones to turn on gps,wifi, and cell tower assisted location, it will begin to update the location of the wifi Mac address associated with the router.
I could clone the Mac address of another router that has yet to be pinpointed in googles database onto my Mom's router, but gee whiz.
Here is how I think this went down.

The time zone on the router was set by default to Korea. The first device to connect to the router and access google maps location service was her wifi-only iPad. The router reported itself to google as in the time zone of Korea and nothing conflicting was presented, so it pegged the first part of the longitude. Next came the internal compass's contribution to the location. This appears to set a bearing and somehow triangulate position. What this means is that wifi iPads and other such devices are going to corrupt googles location database for any particular router they access if that router's time zone setting is not consistent with it's actual location. Since people may move from say, Florida to Washington, even if they reset their routers time zone, google will still report the location as Florida. Google has basically allowed movable landmarks to be interpreted as fixed positions on the globe.

Thanks for the link RAC

Originally Posted by RAC

My theory, as just posted on a similar thread, is that when the Google car drives down your street taking StreetView images it also grabs the MAC addresses of wireless routers that is can pick up and stores them, with approximate locations, in a database.

As for the Korean location, perhaps we have run out of unique MAC addresses and they are repeated in various parts of the world. I not really sure about the that though.


This Apple KB sheds some light on the subject iPhone and iPod touch: Understanding Location Services

Can that be legal?

1991-c4,

To answer your question, yes, I have scoured their website.

Before I posted this thread, I did do a search on this forum and really didn't hit on anything, but mainly because I did not include "GPS" in my search for obvious reasons.

Since this issue appears to be restricted to wifi-only iPads, could you edit the OP's title to say "Does your wifi iPad show your location incorrectly?".

After reading the similar GPS thread, i was just thinking it may be prudent to separate the issues a little better.

Apple uses a service called skyhook for wifi positioning. They basically wardrive populated areas and record locations along with details about a wifi access point. In this case it appears that their database has an error. You might can submit a correction at (i would post a link, but i am new...

Google search for skyhook wireless and look around the site for the submission form.

Originally Posted by knock

Since this issue appears to be restricted to wifi-only iPads, could you edit the OP's title to say "Does your wifi iPad show your location incorrectly?".

Done!

Originally Posted by iVan

Can that be legal?

There was an outcry about this (and StreetView as well) by Civil Liberties groups in Australia about a year ago but it must have come to nothing.