OLPC Mesh Networks Only

Discuss solutions for wired and wireless usage for sharing and Internet connectivity.

OLPC Mesh Networks Only

Postby carlsonloggie » Sat Aug 02, 2008 9:10 pm

I'm using build 656. My OLPC stopped accepting the passphrase, then stopped showing access points in the neighborhood view. I discovered that the OLPC prefers channel 11, but will work with channels 1&6. I set the access point channel at 11 and prepared to try something else.

I next used the Wpa.sh script to set the SSID and passphrase, but it still would not show the access points; only the three Mesh networks showed up. I tried WPA version 1 first with no change, left the house for a few hours, and when I returned I noticed that for some odd reason I could see access points again.

The OLPC continued to try to connect to a mesh network even as it tried to connect to my access point. It kept asking for the passphrase, but even though I quadruple checked it's accuracy the OLPC would not log on. I logged into my Actiontec router and everything was fine.

Finally, at the end of my rope, I decided it was time for a reload of the OS. Afterwards, I checked the build and I'm now on build 703. Everything should be back to normal. Except now, although my router was broadcasting on channel 11, the OLPC was saying it was trying to connect on channel 6. So I changed my router to channel 6, but it still won't accept the passphrase.

What now?
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Re: OLPC Mesh Networks Only

Postby carlsonloggie » Sat Aug 02, 2008 9:16 pm

P.S. I tried WPA type 2 as well, and it didn't help. Since I reloaded, I'm no longer using the Wpa.sh script. I never needed it before, and I only tried using it when the system stopped accepting the passphrase.

To my knowledge, the Actiontec router is working fine. I suppose it is possible that the Actiontec router is blocking the signal, but I changed the security level and it didn't help.

Kristofer Carlson
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Re: OLPC Mesh Networks Only

Postby carlsonloggie » Sat Aug 02, 2008 9:22 pm

I also tried the following advice, to no effect (all except trying an unsecured wireless connection.)

One way to fix your wireless connection is to open a Terminal session and:

In terminal, type the following line and press enter:
rm /home/olpc/.sugar/default/nm/networks.cfg

The screen will return an empty line if you have entered this command correctly.

[ You can read other posts on this topic by entering networks.cfg in the Search bar on the top right of your Forum screen.]

Then go Ctrl Alt Erase which will restart your XO session and see if the wireless shows up.

Testing at a local library or free WiFi source can confirm if wireless works on your XO as well.
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Re: OLPC Mesh Networks Only

Postby ncarrol » Mon Aug 25, 2008 12:50 am

About your Actiontec router, see Networking / Internet topic "Any way to use 64 bit WEP key with XO?".

http://en.forum.laptop.org/viewtopic.php?f=1329&t=150934

Also "Connecting AT&T 2wire problems" :

http://en.forum.laptop.org/viewtopic.php?f=1329&t=156814
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Re: OLPC Mesh Networks Only

Postby carlsonloggie » Sat Oct 11, 2008 5:08 pm

I tried the tips at http://wiki.laptop.org/go/Manual_Wireless_Association and found something interesting. The OLPC is using the incorrect subnet mask: "255.255.255.255". I use a class C network: "255.255.255.0". The tips don't tell me how to update the subnet mask. Any ideas?
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Re: OLPC Mesh Networks Only

Postby 2grandparents » Wed Dec 10, 2008 10:28 pm

I don't understand the "Mesh" network thing. We go to "Neighborhood", then click on one of the 3 Mesh circles and eventually one will turn white.
But, then what do we do? It doesn't get us onto the internet (we don't have wireless). Aren't we supposed to connect with other Mesh users?
Thank you in advance!
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Re: OLPC Mesh Networks Only

Postby AuntiMame » Thu Dec 11, 2008 12:51 am

2grandparents,
click on one of the 3 Mesh circles and eventually one will turn white.

This mean you have "connected" to that Mesh channel.

There is a Help activity on the XO (the icon looks like a question mark) that has a "Getting Started" user's guide. Or you can read it on line here: http://laptop.org/8.2.0/manual/

It doesn't get us onto the internet (we don't have wireless).

You have to have wifi (wireless) to get to the Internet. Your XO will work in a public wifi spot (your local library, perhaps?)

If your home Internet access is wired, you can get a USB-to-Wired adapter to plug your XO into a wired connection. There is list here: http://wiki.laptop.org/go/USB_ethernet_adaptors

Aren't we supposed to connect with other Mesh users?

The Mesh channels will only connect you to other XOs if you are physically close to them: in the same classroom or school, next door neighbor, etc.

You can connect to other XOs over the Internet. See http://wiki.laptop.org/go/Community_Jabber_Servers for more info.

Hope this helps,
Aunti
http://www.XOExplosion.com
Silly name. Great stuff for your XO laptop.
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Re: OLPC Mesh Networks Only

Postby ncarrol » Thu Dec 11, 2008 1:33 am

Just to add to Aunti's post :

The MESH with another nearby XO is all automatic -- you don't have do a thing. If another XO is near (200 yards), its icon will show up in the Neighborhood view.

To communicate with the other XO you have to run a sharing Activity, such as Chat, and invite (menu) the other XO to join you ( or join its Chat) in the Neighborhood view. I like to play memorize with my friend in another state via the Jabber. The Jabber is just like having the XO next to you.

The USB port to ethernet adapter that Aunti talks about is about $ 25 from:

http://xoexplosion.com or http://ilovemyxo.com
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Re: OLPC Mesh Networks Only

Postby carlsonloggie » Thu Dec 11, 2008 1:00 pm

My original problem was that the OLPC would not connect wirelessly. None of the suggested fixes work. All I see are supposed Mesh connections, none of which actually connect me to the internet, while the OLPC fails to even see my access point. Even reloading the entire operating system doesn't work.

I'm convinced the OLPC project is a joke. How is a child with no computer education supposed to make this work?
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Re: OLPC Mesh Networks Only

Postby 2grandparents » Thu Dec 11, 2008 1:57 pm

ncarrol wrote:Just to add to Aunti's post :

The MESH with another nearby XO is all automatic -- you don't have do a thing. If another XO is near (200 yards), its icon will show up in the Neighborhood view.

To communicate with the other XO you have to run a sharing Activity, such as Chat, and invite (menu) the other XO to join you ( or join its Chat) in the Neighborhood view. I like to play memorize with my friend in another state via the Jabber. The Jabber is just like having the XO next to you.

The USB port to ethernet adapter that Aunti talks about is about $ 25 from:

http://xoexplosion.com or http://ilovemyxo.com



Omigosh!!! What good news!!
Do I understand this correctly?? If I purchase one of those adaptors, I can plug it in to where my desktop computer gets its Broadband internet connection, and my XO will actually be able to connect to the internet that way???? (we don't have wireless and couldn't even get it to work at our library. Even the head computer guy couldn't get it to connect to the internet). :lol:
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Re: OLPC Mesh Networks Only

Postby AuntiMame » Thu Dec 11, 2008 2:37 pm

calsonloggie,
My original problem was that the OLPC would not connect wirelessly.

Sorry the thread got diverted. :oops:
How is a child with no computer education supposed to make this work?

When a deployment happens in a school/community a professional IT person does the work for the school.

In an earlier post you said you were using build 703. Are you still on that, or have you upgraded to 767 (also known as Sugar 8.2)? What wifi access point are you using (model, etc.)?



2grandparents,
If I purchase one of those adaptors, I can plug it in to where my desktop computer gets its Broadband internet connection, and my XO will actually be able to connect to the internet that way????

Yes. (that was easy wasn't it)

Aunti
http://www.XOExplosion.com
Silly name. Great stuff for your XO laptop.
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Re: OLPC Mesh Networks Only

Postby carlsonloggie » Thu Dec 11, 2008 5:44 pm

I haven't updated to the latest 8.2 version. It stopped connecting to the internet about a month after I got it. Every now and then I'd check the help to see if anyone had a new solution, but none of the suggested solutions helped. August was the last time I messed with it---I've pretty much given up. I'll try the new OS, though, and see if it helps.
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Re: OLPC Mesh Networks Only

Postby ncarrol » Thu Dec 11, 2008 5:58 pm

If you get the adapter, just plug it into any of the three USB ports on the side of the XO and plug your internet cable (like the one to the back of your desktop) into it. No software to load ! It just works. Do the plugging while your XO is off. You can get onto your favorite internet site (like Yahoo)immediately with the Browse Activity.

If you want to share with other XO's on the internet, set your Jabber (Mesh server) as given above in Aunti's link about Jabber server. If one jabber does not show "mesh people" (X icons), try another -- a single server may be shut down for a period..

Sorry Aunti about adding onto your replies, but I have had this conversation before and had some insight into what part of your reply needed emphasis.
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Re: OLPC Mesh Networks Only

Postby carlsonloggie » Thu Dec 11, 2008 7:03 pm

I upgraded to Sugar 8.2, and all I see is three mesh networks: Mesh 1, Mesh 6, and Mesh 11. I suppose these are the channels the OLPC sees. I'm transmitting on channel 6, using an ActionTec Wireless Router, model M1424-WR. Clicking on the icon for Mesh 6 causes the icon to pulse. I cannot find anyplace to input the wireless key. Why is this not automatic---when it encounters a secure network, why does it not walk you through the configuration? Other distros of Linux do this much better.
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Re: OLPC Mesh Networks Only

Postby AuntiMame » Thu Dec 11, 2008 7:15 pm

carlsonloggie wrote:...all I see is three mesh networks: Mesh 1, Mesh 6, and Mesh 11. I suppose these are the channels the OLPC sees.

Those are just the 3 Mesh channels that the XO can use. They are not wifi access points.

I'm transmitting on channel 6, using an ActionTec Wireless Router, model M1424-WR.

According to http://wiki.laptop.org/go/Wireless_Acce ... patibility that might be our problem. :( The only reference I see to this model on the compatibility list is a problem.

Clicking on the icon for Mesh 6 causes the icon to pulse.

This is the XO conneting to the Mesh channel. Not an internet wifi access point.

Why is this not automatic---when it encounters a secure network, why does it not walk you through the configuration?

contrary to what you are experiencing its usually very easy. In the network view you usually see the three Mesh channels, and other wifi access points. Clicking on one of those other circles connects you to the access point. Very easy. Sorry its not turning out so easy for you.

Have you every tried to connect your XO to any other wifi? At a library, Starbucks, etc? Is there somewhere in your area where you could try this?

Also, have you submitted a help request at help@laptop.org? -- that's the tech support for OLPC.

Aunti
p.s ncaarrol - no apologies necessary. :)
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