topic Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000 in vSphere Host Client Discussions

503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

cattlerustler — Sat, 23 Feb 2019 14:46:17 GMT

Help

I have ESXi 6.7 running, after a funny issue with the webportal not working correctly, stuck just before the login screen, I reset the management agents, now all I presented with is

503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

Have tried resetting the management agents again and the network agent both via ssh and on the console, I'm now at a loss please help me.

Thanks

Adrian

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

GayathriS — Sun, 24 Feb 2019 13:58:31 GMT

Could you please run below command and confirm if there is any services which are at stake

service-control --status --all

If vsphere-ui is stopped then use below command to start it

service-control --start vsphere-ui

Please mark this as "correct" or " Helpfull" if this answers your query.

regards

Gayathri

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

cattlerustler — Sun, 24 Feb 2019 14:22:29 GMT

Sadly no joy here at all

[root@ESX1:~] service-control --status --all

-sh: service-control: not found

[root@ESX1:~]

[root@ESX1:~] service-control --start vsphere-ui

-sh: service-control: not found

[root@ESX1:~]

Any other ideas?

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

MikeStoica — Sun, 24 Feb 2019 14:40:57 GMT

You need to run those commands on vCenter or VAMI VMware Knowledge Base

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

cattlerustler — Sun, 24 Feb 2019 18:54:26 GMT

ok, trying to install this now, not the easiest when the ESXi server is knackered to start with (install failed), trying to install another ESXi box first to deploy it on

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

cattlerustler — Sun, 24 Feb 2019 20:42:32 GMT

ok, just installed vCenter and when I go to add the host I get this error

Cannot contact the specified host (10.1.0.15). The host may not be available on the network, a network configuration problem

Clearly the host is not in state it can be contacted other than via SSH, anyone help at all? There must be something I can do via SSH?

Oh I can add the other ESXi 6.7 host with no issues

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

MikeStoica — Sun, 24 Feb 2019 20:48:38 GMT

Is your network configured correctly on the esxi host?

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

cattlerustler — Sun, 24 Feb 2019 21:33:37 GMT

Yes, all networking is ok, was all ok for over a month, then the browser interface went funny only getting to the blue screen prior to login, then refreshed the management agents and got this error, all rather odd and can't find another reference to it online anywhere. This is the free version as the hosted servers are for a non profit organisation, so they basically have no money, I do all my work for free as well. Obviously, I can reinstall ESXi but that would mean downtime for them or out of hours working for me and getting a member of their staff their to look after me, hence hoping there is a fix for it. I'd never run 6.7 before and I'm wishing I had stuck with 6.5 native, using the old thick client is so much nicer and easier than this nasty web interface.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

MikeStoica — Mon, 25 Feb 2019 08:00:01 GMT

If you are using the free version, then you can't added it to vCenter.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

mikemast — Fri, 07 Jun 2019 20:10:44 GMT

I randomly have same issue. I am working on one right now is how I came across this thread. only access I have is console and SSH. tried restarted all the service and still get the 503 message and show disconnected in vcenter. VM's are still running and responding.

ESX host responds to pings and can SSH into it fine. Just stops reporting to vcenter and web client is not working. Try to connect back to vcenter and it says host is un-avaliable, as it cant connect to the host on https.

Only way I have fixed this is reboot the host and kill all the VM's. I have not found a fix to this as of yet.

This looks to have been a intermittent issue for a while now and I don't see any fix or workaround for it. not good for a production environment when I have to kill running VM's.

ESXi Embedded Host Client - Bugs

Along with other posts, and only resolution is reboot host, with running VM's.

Mike

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

Raj1988 — Sun, 09 Jun 2019 05:10:27 GMT

Check these and ESXi Embedded Host Client - Bugs and VMware Knowledge Base .

This can also happen is hostd is not-responding. Have you tried ESXi reboot.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

KHmaiesTN01 — Sat, 29 Feb 2020 23:53:56 GMT

I had the same problem

I just set the DNS and it works

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

mrwboilers — Thu, 26 Mar 2020 17:20:06 GMT

I'm having this issue too, but DNS is already configured properly. Any other ideas?

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

pcteck — Fri, 01 May 2020 15:55:18 GMT

Same here, ESXi host 6.5 happened after I installed updates on the server so it was in maintenance mode.

The httpd service was stopped so I started it, but still no change on the host/ui

I rebooted the host and now the ui loads.

On this link - it seems there is a bug with the esxui,

I checked from SSH

/etc/init.d/esxui status

it was running, so possibly /etc/init.d/esxui start may help if it is stopped. Others reinstalled the VIB.

Bugs | VMware Flings

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

letutruongan — Tue, 19 May 2020 07:44:46 GMT

I got the same problem (Esxi 6.7). When I login host with SSH, try to use esxcli command to control vm I got "Connection refused/error".

I have to shutdown each vm manually, and reboot the host. Everything back to normal.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000000a63051bb30] _serverNamespace = / action = Allow _port = 8309)

vmwaresucksatre — Thu, 21 May 2020 21:45:56 GMT

Yeah got this today. I was setting up a new server, running dell emc vmware esxi release build 14320388. Was at the point where i configure iscsi targets. So i did that but forgot to authorize the server on the array. So did that, went back and the server was just not doing anything.

Looked down and saw about 10 "rescan HBA" tasks. that were all at 0%. waited about an hour for it to resolve and when it didnt, i attempted a server restart. Server restart was locked up as well it seemed, so i used console to powercycle it.

After power cycle this message was displayed when going to the machine directly and my vcenter can not talk to the host. It is pingable though.

The last thing i did before these problems occurred was trying to set up iscsi connections to our shared storage arrays as i have done before....

will post back if i find a solution because the machine is inaccessible now.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000

zeeball — Tue, 27 Jul 2021 13:51:49 GMT

Thanks - It saved my bacon after changing the hostname.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000

arreddick — Thu, 09 Sep 2021 19:34:44 GMT

The same exact thing happened to me. I was connecting to shared iSCSI. Did you ever find a solution?

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000

Mhtd — Sun, 14 Nov 2021 10:50:50 GMT

I used "services.sh restart" command with SSH to restart all management agents on the host,

It worked for me.

Re: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x000

VDadkhah — Sat, 08 Jan 2022 07:13:05 GMT

I exactly have this issue and find no solution for it . only rebooting server resolve it and in production environment it is not acceptable , if you find any solution please let me know .