Use Internet Explorer Enterprise Mode (EMIE)
https://4sysops.com/archives/fix-the-dell-idrac-undefined-and-the-webpage-cannot-be-found-errors/
If the Tools > Enterprise Mode option is missing in IE11, you most likely don’t have Enterprise Mode enabled. You can enable EMIE in Group Policy or enable it by making a Registry edit. Open the Registry editor and browse to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Internet Explorer\. You’ll need to add additional keys by right-clicking the Internet Explorer key and choosing New > Key. The finished structure should be HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Internet Explorer\Main\EnterpriseMode. Last, right-click in the right pane and choose New > String Value and type Enable. Your finished product should look something like this: