HTTP Error 400.0 - Failed to attach to Relay Server state store

[Former Member]

Hello experts,

Our RelayServer stop works with this error message in IIS "HTTP Error 400.0 - Failed to attach to Relay Server state store"

The service "RelayServer" was Started successfull, but the page "http://localhost/relay_server_prd/client/rs_client.dll" shows HTTP 400.

Anyone can help us with this issue.

Best regards,

Rui Keiti Kikumatsu

[former_member199619]

Hi All,

I have followed the procedure given in

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b00c62f3-b1d4-2f10-2b9e-93bec563f...

to install the relay server.

When I run http://localhost/ias_relay_server/server/rs_server.dll in browser, I am getting  error message "HTTP Error 400.0 - Failed to attach to Relay Server state store". After restarting the relay server service also I am getting the same error. Any other suggestions on how to resolve this issue.

Thanks a lot in advance.

Shyam

[bob_gallo58]

it does sound like the rshost.exe did not start correctly, do you have more then one rshost.exe process running.  Turn relay Server tracing verbosity to 4  lets see if the logs tip you off to what maybe going on.

[Former Member]

Hi,

We did a restore in VM Relay Server.

I don't know if was a Windows Update or any other update.

The Relay is OK right now, I hope so.

Regards,

Rui Keiti Kikumatsu

[bob_gallo58]

OK Good news  Good luck.

[j_raymakers]

Hi, I got the same issue, solved by starting the relay server service, so I think a restore of VM Relay Server would not be nessesary.

Grtz Jacco Raymakers

[alessandro_rodrigues]

Same problem with me!

Using: SMP 2.3.3 with Relay Server 16

[bob_gallo58]

In your case what happens when you test the rs_client.dll  and the rs_server.dll?
Does your rshost.exe start? If so set verbosity to 5 and see what the  RS log tells you.

[bob_gallo58]

Have you confirm that the rshost.exe is running?

When you get the failed to attach error while rshost.exe is running without error then most likely it is a matter of the shared memory created by rshost is not visible to the worker process in IIS that is serving the request. The cause is usually account isolation.The account used by the worker process in IIS is controlled by the application pool property. According to our quick setup script, we left that as default without specifying one, that means the IIS is going to use "Application Identity" (which is maps to a built-in account that came with the IIS installation).

Are you seeing any errors in the Relay Server log?