I can not call out on my MJ, I gave the extra MJ I bought to a friend and he tired to register it, since then my MJ has not worked to call out, I still get messages on the computer for MJ.

wrong site this is not MJ need to notify their support team

U gave up on MJ tech no support, huh?
just plugging the MJ in should give u a menu to do that -- or u could load an app and enter ur credential info.

Waiting, 'time" will not resolve this issue. Its a common problem where the MJ isn't talking to their servers. i would check your internet connection to the device as a first step. Change ethernet cable, even if the one you're using has worked before. Weird things happen to cables, some unseen....its always easier to assume a cable is bad and replace it or if you know how, test it within your own network.
The other solution would be to check on what ports are open for the MJ through your router. Offhand I cannot remember what it requires, but it could be that the router is blocking the signal, so the MJ cannot find the servers it needs.
Other than that, there a ton of tech support written on the MJ and the MJ Plus. I have both and had problems with the first two MJ's and didn't register my MJ Plus because I gave up on a home line.
I know that's not a simple answer, but I hope it points you in the right direction.

I’m happy to assist further over the phone at https://www.6ya.com/expert/chad_65e28e99f5372e81

MJ is slow in responding. Keep trying and send an email as well. If you got MJ from RadioShake or BestBuy or other dealers, go to them.

Not very much information in your problem troy but you might be drawing more amps than your producing. I had bought a nice little Craftsman electric tire pump but my Yamaha kept dying. After reading the labels, my 2400IS puts out 15 amps and my tire pump needed 18 amps, my friend now has a nice tire pump for his home use. I've seen post that RVers have to add the "booster" kit to start their air conditioners, extra power is needed to start them after that the 2400 can run them. Just a thought, try reading the metal tag on what your trying to run and see how many amps it needs. Anything over 15 will shut you down and some will need that extra "boost" to get them started. I seem to think I read somewhere that it is about $75.00 for the Yamaha booster kit.

There's a reason you only get U.S. and Canada number as choices.
You can register a MJ anywhere on the internet. The numbers come from the US/Can pool.

Carl

My friend, you cannot register your device here ... this site is a do it yourself help site ..

You need to go to http://www.nextar.com/frontend/proddetail.asp?pn=i4-bc&co=10000312 to register your product.

Thanks for visiting FixYa.com

The number the computer gives you in the initial reset is a 4 digit number (the one mine gave me was 2124) with the last digit flashing. Since I had a 26" tire, I had no clue what I was supposed to enter. I eventually googled a page that gave me the answer. The actual size of my tire is 26x1.90. Go to: http://sheldonbrown.com/cyclecomputer-calibration.html#ccc

According to this page, our Schwinn 12 function computer falls in column "F" and the 4 digit number I would use to replace the 2124 number computer initially gave me (with the "4" flashing) would be 2055. This number represents my bikes actual tire size in the corresponding column. I had tried 2045, since it was the closest number the chart in the owner's book gave, but the speeds and distance computed didn't seem like it reflected much accuracy.

However, doing the math by comparison of 26x1.75 and 26x2 sizes, I find the 2055 number to be exactly the right number for my size tire (26x1.90) as listed in group F. I guess if you have a metric sewing measuring tape, you could measure the circumference of your tire and come close to the desired number, since that is what it is supposed to represent.

Since the manual that came with the computer can be confusing, I recommend going to that page if your tire size is not represented in the chart Schwinn provided with the computer. There is also a lot of useful information about bicycle tires in the other pages of the link I provided, too. Good luck.

Victor