Help!!! Wi-Fi issues...

[Chath Maral]

Okay, so i was trying to validate all the programs we got from FIRST and the Wi-Fi at my house decided not to work. I manually put in the IP adress, as that's what the programming laptop saiid was the error, but it did not work.
I even plugged the ethernet cord directly into the back, to no avail.
*sigh* I spent three hour puzling this out and I need to figure this out.

[Cjmovie]

You said you are attempting to use the system on your home WiFi system. This will not work.

Most home routers are set up to hand out addresses in subnet 192.168.1.x or 192.168.0.x (a 255.255.255.0 mask). To use the cRio in the way intended for programming, etc, it will need to have an IP address of 10.xx.yy.2, where xx and yy are your team number - quite different from the subnet of your home router. When your laptop tries to send packets to the 10.xx.yy.2 address of the cRio, there will be no path to it in the local network - the router only "sees" addresses inside its own subnet as local, and will fail routing it (it's also possible it will just discard it, depending on configuration, and it's also possible the packets from your laptop won't get anywhere to start with, without a properly assigned gateway in a network configured like this. I'm not a IP expert.)

Namely, the only way to use it in an environment like this would be to directly connect your laptop and cRio (that is, without cutting your internet connection at home, or vastly reconfiguring your router - if it can be, to start with. It sounded like you've done something with an ethernet cable, but I'm not sure what) via an ethernet cable (crossover or not, it should work either way if you have a sufficiently modern laptop). Set your laptop to have the wireless off, and your ethernet adapter with the static IP of 10.xx.yy.6 (as dictated in the guides as normal), subnet mask of 255.0.0.0.

Hope this helps.

[EHaskins]

The easiest thing to do to test the system is to connect the DS, either port, to the cRio port #1 using a patch cable, and connect the computer to the other port on the DS.

If you're using the OTB firmware on the cRio and DS then set your ip addresses to:
DS (already set) 10.0.0.5 subnet 255.0.0.0
cRio (already set) 10.0.0.2 subnet 255.0.0.0
Computer 10.0.0.6 subnet 255.0.0.0

IF you've upgraded the firmware in both the DS and cRio then replace 0.0 with your team number as described in the documentation.

You can then try pinging the DS and cRio, and attempting to download code and/or upgrading firmware.

With this configuration you can verify the system works, then you can configure the wireless.

I would recommend setting the gaming adapter settings appropriate for your normal network, probably 192.168.(0 or 1).(254 or other high number) subnet 255.255.255.0.

Once that is connected you should be able to connect your DS and computer and they should work without any issues.

Originally Posted by Cjmovie

You said you are attempting to use the system on your home WiFi system. This will not work.

Here is a my post to a similar question last month.

Originally Posted by EHaskins

Actually, the IP/subnet of the router interface is irrelevant to this. The router provided is, functionally, a 6 port switch with one port connected to a wireless access point, another connected to a router/NAT device, and four ports exposed for our use.

Since we are only communicating on a LAN, i.e. on a single switch, the router device is never involved in the communications between the DS and the cRio.

You can test this by changing the Ip address of the router to something else. It will still work.

/Explanation

So long as each device has its own IP, which happens if you change you team number, and the subnet masks of the devices communicating(DSs and cRios) match, then it will work.

If you don't read my whole post, if you change the team number on one DS and one cRio, then they will connect and not interfere.

If you have any questions I'll try to explain it more.