Blank space in HTTP tunnel field in location document causes loss of connectivity to Domino servers
You attempt to connect to a Domino server from your Notes client but receive the following error:
"The server is not responding. The server may be down or you may be experiencing network problems. Contact your system administrator if this problem persists."
Steps to reproduce:
- Edit the current Location document of a working Notes client. Select File -> Mobile -> Edit Current Location Document -> Proxy tab, and add a blank space to the "HTTP Tunnel" field.
- Select the option "Use same proxy for all of the above" and click OK. Save and close the Location document.
- Attempt to connect to the Domino server; you receive the error "The server is not responding. The server may be down or you may be...."
This issue was reported Quality Engineering as SPR# RHAN6DCMKV and was fixed in 6.5.6.
Excerpt from the Lotus Notes and Domino Release 6.5.6 MR fix list (available at http://www.ibm.com/developerworks/lotus):
Calendaring & Scheduling
SPR# DCON62PRY9 - Fixed a problem where the Start/End Time and Date disappeared after changing only the end time zone.
Refer to the Upgrade Central site for details on upgrading Notes/Domino.
To work around the error, remove the blank space from the "HTTP Tunnel" field in the Location document. Exit the Notes client and reopen it. You should now be able to connect to the server without receiving the error.
Perform a TRACE to the Domino Server from the client using User Preferences -> Port:
"Determining path to server Domino1/Domain
Available Ports: TCPIP LAN0
Checking normal priority connection documents only...
Allowing wild card connection documents...
Checking for Domino1/Domain at last known address 'Domino' on TCPIP...
Detected Proxy Server configuration: :8080
Checking for Domino1.Domain.com in NoProxy List...
Attempting to re-direct connection to HTTP Proxy
DNS Lookup failed, Host not found in DNS
Unable to connect to Domino1/Domain on TCPIP (The server is not responding. The server may be down or you may be experiencing network problems. Contact your system administrator if this problem persists.)
No answer at last known address."
"The proxy server host name or IP address was not found".
However, this customer received the error because there was a blank space in the "No proxy for these hosts or domains" field in the Exception section.