EVERYDAY this month both of my ninjatrader computers SILENTLY loses connection to both MyFundedFutures and FundedNext. So it looks like its still connected (green bubble) but no data. It doesnt matter if I just started the connection right before, it always happens randomly around/after market open. I’ve power cycled my router/fiber modem. I’ve switched to ethernet instead of wifi. I’ve made sure that Winblows wont put the network adapter to sleep. I’ve written a script to heartbeat and alert me when it happens. Chatgpt doesnt know what else to do to fix it? I would ask support but they’ll probably tell me they dont understand and I have to send a video of it happening (support has really gone down hill lately). Please help
yes i have had a couple of occasions where that has randomly happened as well. Not as frequently as every day however. But my bubble also stays green. Close and reopen seemed to solve it but not ideal.
1 Like
Something similar happens to me regularly. NinjaTrader will lose connection then reconnect in less than a second. Everything looks normal, and prices may even be updated, but after the reconnect no trades are taken, meaning I’m missing entries and exits. Still trying to figure out why this happens and how to mitigate. For now when I hear a disconnection I just stop my strategies, manually disconnect, reconnect, and restart the strategies again with “Immediately submit, synchronize accounts.”
If someone can explain why this happens, I’d love to know.
2 Likes
Some short disconnects could be ISP disruptions. I seem to get a fair amount of those with my ISP (maybe a handful of times a week) since it’s a consumer grade (not business grade) service.
My suggestion is to have a small cmd window open in some corner and run a continuous ping (ping -t IPAddress) to your ISP gateway (not your home network/router gateway, but the next one over at the ISP that your router’s outside interface connects to), or maybe your DNS server. If there are local ISP disruptions, this will show up as a few missed pings.
1 Like
Last week my two different machines running in different continents lost connection and all my strategies turned off around 4 hours before close of friday EOD.
But other than that one incident, loss of connection never seems to be more than 1 second and it has no impact on my strategies.
I am running the default data feed of NinjaTrader on version 8.1.5.2 and version 8.1.6.0
1 Like
This has been happening to me for quite a while with no explanation BEFORE the support went away. Randomly my platform would have the latest drawing/studies without me updating. After a very lengthy time with NT I quit. Im using another platform without worring if I’ll get a disconnect and reconnect. So long NT!
1 Like
The disconnections are short but frequent. This NEVER happened anytime in the last 6 years while on Continuum
3 Likes
Something else to consider is that all connection messages are not the same type of event. The orange entry is the result of forcing the router connection from cable to dsl. A physical disconnect and change of IPs.
2 Likes
ya my problem didnt start happening until this month. It might be a Tradovate problem. I’ve heard they suck too
Anyone having issues with the NinjaTrader add-on to Tradingview? Mine has been fine all year until now, and won’t connect all of a sudden.
It absolutely is a problem that I don’t think the NT8 team is taking seriously enough. Flowing data will suddenly seize and go stagnant, with no indication in the Control Panel logs that anything is wrong.
This issue got so bad for our traders that we were forced to build a connection recovery system inside our add-on.
Here’s what a stale data recovery sequence looks like:
And here are the counts of how many recoveries Data Watchdog made by connection type in March 1-31, 2026:
In total, there were ~175 traders affected by these connection dropouts. Some more than once.
I’m posting this here because I want other traders here to know it’s not just them, or their system, or their NT8. And I hope the NT8 dev team will see this and acknowledge the problem.
The scope here isn’t limited to one prop/connection or another; they’re all affected. Even “Simulation” died!
4 Likes
I would think they could possibly better detect connection issues, but what if it’s not even on NT at all? There are many layers where the problem could occur: exchange, the data distributor/infrastructure, routing from that to the user, the user’s own network and computer itself. Even though you have Live listed in your connection name, I think I’ve personally seen one connection issue within the last year or so in live. What I see is that most of the people complaining are on simulation feed.
1 Like
I would think even if it wasnt NinjaTrader’s fault, NinjaTrader should be able to detect it immediately and fix it whenever it happens by now
1 Like
I’ve gotten “connection lost” every single day of april so far. March had zero instances and no issues. Nothing in my setup has changed. I conclude that the change over on 3/31 to discontinue continuum probably wasn’t orchestrated as planned. Perhaps load issues, but I’m only guessing. Bottom line result is this NT connection has gone to crap as a result and it coincides with the changeover.
1 Like
I have multiple connection failures today FWIW
1 Like
I’ve been dealing with this exact issue on some institutional execution engines we run, the problem isn’t your ISP or Windows power settings. It’s a desynchronization between the UI’s connection state and the internal NinjaScript execution state, specifically common with the Tradovate API bridge.
When the socket drops for even 500ms, the UI often fails to update the green bubble. However, the internal OnConnectionStatusUpdate method in your strategies correctly registers the drop and halts execution to prevent out-of-sync routing. When the connection re-establishes a second later, unmanaged strategies resume fine, but Managed Strategies (which most retail traders use) require manual intervention because the internal position state is no longer guaranteed.
The Fix (If you are coding your own strategies) you need to move away from Managed orders and build state-recovery logic inside OnConnectionStatusUpdate. You have to program the strategy to query the broker’s live position the moment ConnectionStatus.Connected fires again, compare it to your internal arrays, and automatically resync. It requires unmanaged order methods and strict exception handling, but it completely eliminates the need to manually restart strategies when the Tradovate feed stutters, if you are just using out-of-the-box NT8 tools, unfortunately, Steve is right, manual restart is your safest bet until NT patches the UI sync
3 Likes
sadly, it still happens even when my strategy is set to the sim101 account only
2 Likes
If your connection is dropping while running a strategy strictly on the Sim101 account, you are not dealing with a network or broker issue, you have a thread-blocking bottleneck in your C# architecture. NinjaTrader 8 routes the data feed and the primary UI rendering through shared dispatcher queues. When a retail strategy puts heavy computational logic, unoptimized loops, or synchronous historical lookbacks directly inside the OnBarUpdate or OnRender methods, it chokes that primary thread, the NT8 core engine has a built-in defense mechanism where it will deliberately sever the data connection to prevent a catastrophic software freeze
You cannot solve this by changing broker settings, you have to decouple your math. You need to offload the heavy calculations into asynchronous background tasks and only pass the finalized state back to the execution layer. A lot of traders get chopped up here because they use AI to write standard scripts, but AI does not understand NT8’s proprietary memory management. If you are managing serious capital and need to refactor that strategy into a fully deterministic, thread-safe execution engine that never drops ticks, shoot me a DM, my team specializes in this exact B2B infrastructure.
1 Like
Yep! @ezrollin @EduardoT It happend(s) in Live account AND in sim account with NO trading stratgies running AND with 1 trading strat running! This has been happening far too long before they had “support” … I have had NT since NT 6 version. Its hard enough being consistent trading and then you have this B.S… so I know when its the platform… NT Now with no support… AI… right!!..BYE!
1 Like
#Stickman - if I may, which platform are you favouring to switch to?
Kind regards,