Hi AllI've cRIO 9004 with chassis 9103. Two days ago it was working fine. suddenly with no obvious reason I'm not able to connect to it. Here are the details:1. when all DIP switches are OFF, it powers up and i guess during the power process the STATUS LED flashes few times slowly and the user1 LED also flashes then both stops flashing but STATUS remains continuously lit. user1 is OFF2. I checked the manual and it says that continously lit means the flash is corrupted and needs reformating. 3. problem is i can't see the cRIO anymore in my computer "used to see it" in order to perform the flash formating which i don't know how to do it as well but let this a side for now. let's try and connect it first.4. I tried resetting the IP but it seems not working, here are two procedures I used for resetting the IP: a. while the controller is on, move the IP DIP switch to ON and then press the reset button .... didn't work 😞 b. controller off, and move the IP DIP to on then power on the controller, and after a while "just to make sure it completed it's operating system", I press the rest button.... didn't work5. I tried putting the controller on the safe mode and check if i can see it in MAX but couldn't. Also during the safe mode the status LED is continously flashing every couple of seconds or so.6. all the modules and controller seem to have their power right.would anyone please advice of the right procedure for resetting the IP, i've a feeling that it's 99% IP problem...."at least the one that i can't see it in MAX".Also any other suggestions why the status LED is always on? in short, any suggestions that will make this thing work. Thanks in advance.

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crio - compactRIO 9004 unusual error , help please!! ASAP :(

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well, from what you both suggested, I've done that already.

i've disconnected the backplane and connected the controller itself and it connects and i'm able to see it and actually connect to it and i formated the flash and reinstalled the software. i have MAX version 4.1.0.3001

the thing is after i formated the flash and return the safe mode switch to off, the status led is off all the time. so i said so far so good.

i connected the backplane and faced with the same initial problem and the status led came on as if the device is not configured at all and i was not able to connect.

i used to use a straight cable although i connected directly to the thing, however, i don't think this is what caused the actual problem. i now use the cross over cable but still not connecting.

as if something happened to the device... i don't know, i had the power cables unisolated and a cleaner comes to clean the room everyday...maybe she hit something while i'm not there.

however, i ruled this out from my first troubleshooting for many reasons:
first eveything in the robot is perfectly working
second there is a fuse before the cRIO
third the power cables are connected to the c-modules and the controller but not the chassis, so if something happened, it will happen to either of these first before the chassis.
as i told you before that the guy had a software that controls two motors
and it seems that the c-module (9474)is still having the leds of those digital outputs blinking quickly ..which means that they have an output coming from the controller which will come through the chassis ...so that means it's in a working order, doesn't it??

after this tiring thing, i told my supervisor and we might find another one somewhere in the dept. so we can exchange parts and check if there is something wrong. i guess it will have to go to NI tech. support.