Users facing issue in Outlook application on Zscaler, randomly on any user pc internet sign changes to globe saying no internet access although we can access internet without any issues but outlook gets disconnected and asks for password prompt

Users facing issue in Outlook application on Zscaler, randomly on any user pc internet sign changes to globe saying no internet access although we can access internet without any issues but out gets disconnected and asks for password prompt. When we provide password we get popup saying we are unable to connect right now.

We have seen this issue . where Internets works but Network Icon shows global and no internet access .
once we disable ZCC its gets to normal . , Windows OS is not able to Track the adapter status while on ZCC for few windows Machines based on OS . done below registry change and it did work for limited time .

change the Registry value to 1 to 0 and check if it changes .

[HKLM\Software\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator]

Key Name: NoActiveProbe

Hi mohan_sai thanks for response will test this, but is this permanent solution or temporary, as you mentioned it worked for limited time.

Its limited , I observed it was stable for most of the users ,but the registry changes, Reverts back to 1 for some users if the PC is Restarted

kindly try on a test machine .

Ok, actually I am looking for permanent fix as we are facing this issue since very long.

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Hello Zscaler,

Any update for this issue?
Our site having this issue too, 100% match to the description in this post.

I’ve seen this problem before with fragmentation so review your MTU size.
MTU 1370 seems to be a popular choice.

Can anybody confirm? how this issue got resolved?