NOKIA SIP/VoIP Troubleshooting: Connection to a Web server fails


Sorry for the absence but been “jet lagging” and Nokia Care took my beloved E72 away for a moment. Back to business. So troubleshooting Nokia S60 device when you have to deal with the IP level connectivity issues. These are not VoIP issues, to be precise. But it this does not work neither does VoIP.

If you encounter problems when connecting to a Web server on the Internet, check following down to earth details

1. Can you open the Web browser?

If you cannot open for example http://www.google.com/voice in the Web browser, the problem can be in the IAP settings. For more information on the IAP, see ‘Settings, Connection settings’ in the Nokia S60 device’s user guide.

Possible notifications of the Web browser are:

Connection failed

This error notification can be caused by several reasons such as an internal WLAN error, an authentication failure, the WLAN network cannot be found, access to the service is barred, the password has expired, or the account has been disabled.

Connection not available

This error notification means an IP networking error.

Connection time-out

This error notification means that the TCP connection establishment timed out. The client obtained the IP address and the Domain Name System (DNS) worked, but the connection to the Web server failed after a time-out. This is either an IP routing problem, for example, the default gateway (router) was not obtained in the DHCP, or this network segment is not connected to the public Internet.

Invalid access point

This error notification means that either the user wants to activate a bookmark or to refresh a saved page, but the referenced AP no longer exists.o Check the bookmark. Enter the URL manually. Invalid user name or passwordo This error notification means a login or authentication failure. Do not use a bookmark that has another IAP.No connection networks foundo This error notification means that no APs are available. Create an IAP for this WLAN.

No access points defined

This error notification means that no suitable AP is available. A confirmation query ‘Define one through Connection settings?’ is displayed. To create a new WLAN IAP, answer ‘Yes’.

No WLAN networks found

This error notification means that when scanning for networks, no networks were found or there is no WLAN coverage.

Page not available

This error notification can be caused by several reasons such as a bad, redirected URL. Check the URL.

Page not found

This error notification means that the URL is corrupted or malformed. Check the URL.

Secure connection not available

This error notification means that the connection URL is non-secure or the authentication header is missing. Use an unprotected URL (that is, http:// instead of https://).

Server not found

This error notification means that no Web server or proxy was found. Check the URL or HTTP proxy configuration in the IAP settings.o This can also indicate a DNS malfunction, see below “Can you access the Web page from the Web browser using a plain IP address?”.

Unable to connect

This error notification can be caused by several reasons such as an IP connection problem. Check the connection settings. If the problem remains, the IP level connectivity is probably broken. Try using some other WLAN client, for example, a PC. If the problem still remains, contact the WLAN network administrator.

Unable to connect to the connection network

This error notification means that the connection to the WLAN AP cannot be established. Either the WLAN association has failed or no IP address can be obtained.Unable to connect to servero This error notification can be caused by several reasons such as a wrong protocol or the host is unreachable. If the URL is correct, there is an IP routing problem between the local network and the public Internet.

Unable to perform operation

This error notification can be caused by several reasons such as a bad or missing input parameter, or a network status failure.o Check the URL. If the error remains, try with another WLAN client.

WLAN network lost

This error notification means that the WLAN connection is lost because, for example, the UI terminal is moving out of WLAN network coverage, or the WLAN AP was rebooted or crashed (beacon lost). Check the indicator lights of the WLAN AP. If the WLAN AP reboots, try upgrading the firmware or use a different protection mode. An internal malfunction inside the WLAN AP is most likely causing the connection to be dropped. This may also happen if the client is near the edge of the WLAN cell coverage or the interference level is high. Try moving closer to the WLAN AP.

2. Can you access the Web page from the Web browser using a plain IP address?

In some cases the IP connectivity works, but there are problems with the Domain Name System (DNS).Try to open http://147.243.3.83 (www.nokia.com Sorry page). If you can open a Web page using a numeric format, but not using a domain name as above “Is there a WLAN network available?”, the problem is in the DNS function. Try configuring the DNS server name manually as described below, “Configuring IAP settings manually”.

3. Configuring IAP settings manually

In some special cases configuring the IAP settings manually may help, both for the browser and the VoIP client. If you configured the IAP settings manually, check that you used correct spelling.Some Internet Service Providers require the DNS server addresses to be manually configured.

To create access points manually,

select Menu -> Settings -> Connection -> Network destinations.

Note that before creating an access point you must first define a destination.

Select Options -> Manage -> Add destination. Give a name for the destination and select a descriptive icon.

To create a new access point for the destination,

select Options -> Add connection method and define the data connection type (here Wireless LAN).

Select the network and security mode.

To change the settings of the IP type to be used,

select Options > Advanced settings.

To enter the IP addresses of the primary and secondary DNS servers in IPv4 settings,

select Domain name servers.

For more information on IAP configuration, see ‘Settings, Connection settings’ in the Nokia S60 device’s user guide (Create an access point -> Select the data -> Enter the DNS address connection type).

If you still cannot access a Web page using an IP address, the client cannot obtain the IP address or the IP connectivity from the WLAN AP to the public Internet is broken.

Sometimes restarting the WLAN AP, WLAN access router, an xDSL, or a cable modem might help. Can you use any other WLAN client, for example, a PC to open the same Web page? If not, please contact your Internet service provider.

Note that all screen shots and menu examples in this document should be considered as examples only. The menu contents or the location of applications and folders may vary according to the device.

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