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29 Dell Hybrid Cloud System for Microsoft Cloud Platform System Standard
Issue 5
Symptoms:
From the Console VM, the CPS Administrator cannot access the OEM OOB (Out-of-Band Management)
webpage through Internet Explorer. The error will be similar to the following:
This page can’t be displayed
Turn on TLS 1.0, TLS 1.1, and TLS 1.2 in Advanced settings and try connecting to https://URL again. If this
error persists, it is possible that this site uses an unsupported protocol or cipher site such as RC4 (link for
details), which is not considered secure. Please contact your administrator.
Cause:
TLS 1.2 ciphers were strengthened in P&U 1706 (and higher) on all hosts and VMs in the CPS stamp. The
Dell EMC iDRAC cannot communicate using these enhanced cryptography ciphers.
Workaround:
1. To temporarily unblock the issue, delete this registry key value on the Console VM trying to access
the F5 Configuration:
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SS
L\00010002]
"Functions"="TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WIT
H_AES_128_GCM_SHA256_P256,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC
_SHA256_P256,
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
256_P256"
2. Reboot the console VM after deleting the “Functions” value, which will return the Console VM to the
default Windows cipher suites.
Issue 6
Symptoms:
The P&U install process fails with the following error:
“Connecting to remote server <ServerName> failed with the following error message: The request is not
supported.”