Hello everyone, I've been conducting research but haven't had much success finding similar issues posted online. In our facility, we have around a dozen 1783-NATR devices. While I have a good grasp on setting them up and operating them effectively, there is an ongoing issue that I would like to address. Whenever a cell is powered down, whether it's planned maintenance or due to unforeseen circumstances like a power outage, I consistently encounter a problem with 3-4 units not coming back online when power is restored. The top 'OK' light on these units flashes red, causing communication loss from the Plant Network to the cell's Local Network. While I can manually power cycle the unit to resolve the issue, it is inconvenient and leads to data loss until the unit is back online. One theory is that the NAT devices may come up faster than other devices in the network, potentially causing an IP conflict. However, under normal circumstances, there are no persistent duplicate IP addresses on the network. Another possibility is that certain IT policies or network configurations may be contributing to the intermittent issue. I am considering installing a timer contact to delay the NAT power activation after cell power is restored as a potential solution. Have any of you encountered a similar problem? If so, were you able to find a resolution?
In most cases, a NATR fault occurs due to an IP duplication issue. It is recommended to check the web interface for specific faults before proceeding further. It is likely that something is claiming the IP during startup, leading to the fault. Consider setting up a continuous ping and monitoring it during system restart to identify any issues. It is possible that an unpingable device is causing the problem, in which case involving IT support or changing the IPs of the NAT and gateways may be necessary to avoid conflicts.
Thank you for responding. I will be thoroughly reviewing all active network devices to confirm settings on both the Public and Private sides. IT conducted a ping scan which showed all devices currently online, but this may not detect any duplicates. I am hoping to uncover any issues during this investigation.
Your challenge is certainly not uncommon and the struggle is real, especially given the modern reliance on these networking devices. Your theory of introducing a timer contact to delay the NAT power activation doesn't sound irrational as it would allow time for other devices to establish their network position before the NAT. However, this may still not be a fail-safe solution. I'm not sure if you've considered this, but the problem may also lie in your power supply. A sudden surge, when power is restored, might be causing the units to lock up. An Uninterruptible Power Supply (UPS) conditioning the power to the NATR devices could help. Also, check if there are any firmware updates that may specifically address power restoration issues. If it's not a hardware problem, it may indeed be due to IT policies or even a firmware bug.
I've actually encountered a similar problem in our facility as well. What worked for us was implementing a staggered start-up sequence to avoid potential IP conflicts and network congestion during power restoration. This resolved much of our issues. However, it seems you might already be considering this with your timer contact solution. One thing to keep in mind, though, is that if there's a deeper rooted issue with your network's infrastructure or settings, a staggered start-up will only be a workaround, not a permanent fix. I recommend doing further diagnostics on your network's health or reaching out to a specialized IT professional if the problem persists.
Hey there! It sounds like you're dealing with a frustrating issue. I’ve run into something similar in the past with networking devices. Delaying the power activation with a timer contact is a smart move—sometimes giving other devices a moment to boot up can prevent those IP conflicts. You might also want to look into your network’s DHCP lease times and make sure that your NAT devices are set with static IPs if possible, just to rule out any confusion. It could also help to check if there are firmware updates for your NAT units that might address this boot-up sequence issue. Good luck, and I hope you find a solution soon!
Hey there! I actually faced a similar issue with our 1783-NATR devices a while back. What ended up helping us was adjusting the boot sequence in our network to ensure the NAT devices powered up in a specific order, which minimized communication dropouts. We also made sure to have a delay implemented on the NAT devices through a timer, just like you're considering. It sounds like you’re on the right track with that idea! Also, double-checking the network configurations and ensuring no conflicting settings on the switches might be worth exploring. Good luck, and keep us posted on what you try!
It sounds like you've done a thorough job troubleshooting already! I’ve seen similar issues with devices lagging on power restoration, and it often comes down to timing—your theory about the NAT devices booting faster is quite valid. I've had success in the past using delays in power cycling, so your idea of installing a timer contact could definitely help ensure that your other devices are fully online before the NAT units come back up. Additionally, checking for firmware updates could address any known bugs related to power recovery. It might also be worth reviewing your network settings for any prioritization that could be adjusted to stabilize the communication. Good luck, and keep us posted on what works!
I can relate to your struggles with the 1783-NATR devices! It sounds like you've already thought through some solid theories about the issue. I've seen similar problems in other facilities, and often, a delayed start for devices can definitely help avoid IP conflicts, especially if they're all trying to connect at once. Another approach you might consider is reviewing the firmware on the NAT devices; sometimes, there are updates that address specific bugs related to power recovery. Additionally, if you haven’t already, checking the DHCP settings to ensure they’re optimal can also make a big difference. Good luck!
✅ Work Order Management
✅ Asset Tracking
✅ Preventive Maintenance
✅ Inspection Report
We have received your information. We will share Schedule Demo details on your Mail Id.
Answer: The common issue is that 3-4 units do not come back online after a power loss, with the top 'OK' light flashing red, leading to communication loss from the Plant Network to the cell's Local Network.
Answer: One possible reason could be that the NAT devices may come up faster than other devices in the network, potentially causing an IP conflict. Another reason could be certain IT policies or network configurations contributing to the intermittent issue.
Answer: One potential solution being considered is installing a timer contact to delay the NAT power activation after cell power is restored.
Answer: The original poster is seeking input from others who may have faced a similar issue and if they were able to find a resolution.
Join hundreds of satisfied customers who have transformed their maintenance processes.
Sign up today and start optimizing your workflow.