I think I may be able to suggest a solution. I had the identical issue for CIMC on four different UCS C210 M2 servers. If I power cycled the UCS, CIMC would resume normal operation, but the workaround only lasted for a limited time.
I asked my partner to upgrade the CIMCs. We are at versions 1.4(3k) & 1.4(3j) and no longer experience the issue at all. This was a permanent solution for me, but I am concerned that your version appears higher than mine.
Lastly, I also found a method online to SSH into the CIMC and restart the web GUI which helped when I had the issue: (unfortunately I am not able to credit the original source, sorry)
Now assuming you have SSH enabled, you can use an SSH client such as PUTTY to SSH over, log in, and execute:
The session would look something like this:
login as: admin
sucs-c2xx# scope cimc
ucs-c2xx /cimc # reboot
This operation will reboot the CIMC.
It doesn't appear to impact or interfere with any applications or VMs which may be hosted on the UCS.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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