Hello
For creating KB, you can use F5 article session in F5 page. For example go through below link and you will receive details about it. Like that you can check each F5 vip issues and find resolution steps
https://my.f5.com/manage/s/article/K34607084
Other common issues you can choose below steps
- Check vip/server status
- Take pcap file of front and backend traffic
- Need to escalate to F5 , please take a qkview file and upload to F5 support
- Also you can check connection table to find vip connections
https://my.f5.com/manage/s/article/K53851362