Forum Discussion
pcourtois
Cirrus
CirrusRandom TCP Resets from F5
Good day all, I am researching an intermittent and random issue where our F5 WAFs respond to customers with the following: "An error occurred while sending the request.::Unable to read data fro...
Daniel_Wolf
MVP
MVPHi pcourtois,
I am afraid AI won't take you far in this scenario...
The error message you posted looks like a generic .NET error message. The F5 by itself would not send such error message.
The BIG-IP sending a reset package is also not unusual, sometimes that's just how TCP works.
For example: if the TCP session is timed out on the F5 and client sends data on this timed-out session, the F5 would reply with a RST, ACK.
In which direction is the F5 sending the reset, to the client or to the server?
If the F5 sends a RST,ACK to the client and then, as a result, the client shows the above error message, you should adjust the tcp timeout settings in the client side TCP profile.
Hope this helps,
Daniel
