Unexpected client request, unexpected client IP address

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jaimosky
Posts: 40
Joined: 30 May 2017, 16:48

Unexpected client request, unexpected client IP address

Post by jaimosky »

Hi,

we run aXes in a IBM i and there is sometimes that the users in some companies (at least happend in 2 different companies) they get following response from aXes:

Image

The application works correctly 10s of other companies, just in these 2 we get this message from time to time...

Something to do with the network?

Jaime
Fairdinkum
Posts: 128
Joined: 24 Jul 2017, 17:02

Re: Unexpected client request, unexpected client IP address

Post by Fairdinkum »

Hi Jaime,

It looks like the attached screenshot and error message are not accessible at the moment, but I experienced a similar issue earlier.

unnamed.png
unnamed.png (5.66 KiB) Viewed 25 times

After investigating, we found that Trend Micro’s Virus Buster “Real-Time Scan” feature was affecting JSM sessions.
We also confirmed that adding the AXES URL to the exception list for that feature prevents the sessions from being disconnected (see the figure below).

image001.png
image001.png (317.77 KiB) Viewed 25 times

So you might want to check similar settings in your antivirus software.

Hope this helps.

Regards,
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Fairdinkum
Posts: 128
Joined: 24 Jul 2017, 17:02

Re: Unexpected client request, unexpected client IP address

Post by Fairdinkum »

Hi Jaime,

Me again.

Here is another case.

I experienced a similar issue in my environemt in the past, so I’d like to share what I found at that time.
  • It only occurred for JSM sessions via AWS (it did not happen with internal connections or VPN connections).
  • After about five minutes since the JSM session signed on, the session was disconnected, and the following message appeared on the AXES sign-on screen:
Disconnected - Unexpected client request, unexpected client IP address
Ultimately, the issue was resolved by changing the forwarding method to IBM i from an ALB (Application Load Balancer) to an NLB (Network Load Balancer).

My understanding is that this change fixed the problem by replacing periodically changing internal IP addresses with a fixed one.


HTH.


Regards,
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