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Any ideas on error UPD errors and nsClientFLow

New Contributor II



New user here.. I have a Mac device that doesn't want to connect to the internet at all unless we disable NetSkope. I noticed a ton of errors in the logs that show this as well as UDP like the one below and well as the Network interface errors. Any help will be much appreciated


stAgentNE p3662 t6691 error nsClientFLow Flow networkInterface is nil


stAgentNE p3662 t6691 info bypassAppMgrUDP.cpp:210 BypassAppMgr Blocking UDP connection from process: safari,

6 Replies 6

Do you have Cloud Firewall licensed by chance, and if so what is being steered in the steering configuration that you are assigned? 

New Contributor II

Sorry for rookie response but Where would I find this info so I can provide this? As far as I can tell we are not

Unfortunately there is no way in the UI to see what you are licensed for.  To figure out if you have Cloud Firewall enabled : Right click on the agent, and select Configuration, you'll see what steering configuration your client gets.  

Then from there, go into Settings -> Security Cloud Platform -> Steering Configuration and open the steering configuration and see if All Traffic is listed. 

Screenshots attached showing some of the process. 

New Contributor II

Ok thanks ... I took a peek within the console but looks like I don't have full permissions to see it there but what I can see on the the endpoint agent side is "all traffic" is listed in the steering type. I also took a look at nsconfig.json but I did not see firewall referenced there.

If All Traffic is noted in the steering type, then it sounds like your organization has Cloud Firewall. I have NGSWG enabled (no CFW), and I have All web Traffic referenced on my agent.  

With Cloud Firewall, there is a default deny at the bottom of the Real Time Policy page, which will block non-80/443 traffic. I would get with your admin, or if you are still in the deployment phase your PS partner to discuss options on how to utilize CFW in a pilot group phase. 


We opened a support ticket not too long about UDP errors in the logs (very much like the one you are showing). The answer we got was related to QUIC (Quick UDP Internet Connection). Netskope is blocking and falling back to non-QUIC. We are told this error is more informational than concerning. <shrug>


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