Unable to access APIC-EM GUI

GUI is not opening in any browser. Able to access Grapevine GUI but username and password showing incorrect . but  SSH console it is accessible.

Try resetting the apic-em 

 http://www.cisco.com/c/en/us/td/docs/cloud-systems-management/application-policy-infrastructure-controller-enterprise-module/1-0-x/deploy-guide/b_apic-em_deploy_guide_v_1_0_0_x.pdf

Follow the steps in Resetting the Cisco APIC-EM section in this guide.

If you still have problem then run rca command in Creating a Support File for the Cisco APIC-EM section in this file.

 Go to https://<ip address> :14141 and under overview make sure there is a green box above ui AND reverse-proxy. If either does not have a green box hit the plus sign in a circle near the right of the screen.

when I try to login why it is not authenticating my password... I have a feeling that its because I have installed in single host mode but only have 32G of RAM (and not the 64G) but it should still let me login right.

• In order to build a full cluster, you need 2x32G servers (Physical or virtual) or 1x64G.
•  In your case only 1/2 the services will be running.  UI might work, but nothing behind it.
•  If you want to build a small test APIC-EM (20 devices), you install with 16-22G RAM.  That will be fully functioning, but limited number of devices.... which is good for testing.
•  If you use 16G RAM, you need to have good disk performance (>200MB) or SSD.

• cas-service
• rbac-service

 only when they are successfully grown will you be able to login. It takes some time and you have to keep harvesting and growing the service. at one point you need to SSH to grapevine and run "reset_grapevine" in the "bin" folder.

see the - Resetting the Cisco APIC-EM

section here Cisco Application Policy Infrastructure Controller Enterprise Module Deployment Guide, Release 1.0.x - Troubleshooting …

1.2 code will let you run a "demo" version in <22G.  You will have full functionality, but limited to 20 devices.