Tech And Leisure..

A Celcom Mobile Broadband subscriber unable to send POP3 and IMAP E-Mail. However if connected to other ISP provider such as Streamyx or Jaring, the problem is not exist. In this case usually the subscriber are able to surf the internet and able to recieve Email. The only problem is when trying to send email using POP3 or IMAP protocol email.

Root Problem:
The IP which you are hooked to were blocked by your email provider server or even the intended or recepient email server. Why did the subscribers IP was blocked? There are several reasons but nowadays the most probable answer is that the IP was tagged due to spams (suspected spammers).

This is the downside of using dynamic IP where the IP were shared by multiple subscribers, and once one of the subscriber "missuse" or abuse the connection to send spams, then the IP will be blocked or tagged as spammers.

So how to solve it:
1. get your external IP address (you can get your from this e.g. website www.whatismyip.com or other online IP tools).

2.Once you get your IP, contact your email provider (if your email is your own company email, refer to your respective IT department) and verify this matter. If its confirmed that the specific IP was blocked or tagged as spammers, ask them to remove it.

Since a lot of visitors are inquiring about error 619, I thought that my previous post may not giving you a comprehensive understanding with regard to ERROR 619. Indeed most of the hits to this blog are from those who are searching solutions to this error. So here we go again (please note that this troubleshoot is done using Celcom Mobile Broadband):

what does error 619 mean?
This error indicate that the connection to certain network is timed out usually due to
1. Network Congestion/Poor Signal Strength
2. Port error

Root Problem:
1. For network congestion and poor signal strength, in the case of Celcom Mobile Broadband, it may means the 3G or WCDMA network which you are trying to connect may be congested or probably due to your location which is too far or beyond the range of the Celcom WCDMA transmitter tower.

2. For port error you can refer to my previous post: http://amrymr.blogspot.com/2009/03/error-619-connection-to-remote-computer.html


Solutions:
1. Please make sure your device detect Celcom WCDMA network and at least there are 3 bars of signal strength are available. Below than that may cause your connection being frequently disconnected or worst, no connection at all.

2.If the error occured when your device attached to WCDMA network, the best bet is change your device network setting to GPRS only. A thing to note here is that whenever you want to choose connection type please make sure you use GPRS only or 3G/WCDMA only. Do not use GPRS preffered or 3G/WCDMA preffered because it may effect your signal and connection stability.

3. Sometimes your computer confuse itself by mistakenly arrange devices within a same port. This may happen when you unplug your modem improperly. Rebooting your computer will repair the mis-managed port.

4.Sometimes your modem will not work (due to file or installation corruption) on the pre-installed software such as mobile connect lite or mobile partner. In a rare but possible situation, the dialing software got bugs. Try to download the latest version of your dialing software from the internet such as www.business.vodafone.com (for hua wei and vodafone brand only).

5.If the connection is still failed, you need to do a manual connection. In brief, I try to explain it here:

Last night I was surprised to see that I was hooked to a new IP. I said its new because previously I never hooked to this IP. So I am glad to know that actually Celcom do provides more than 2 IPs for the Peninsular Malaysia subscribers. The new IP is 203.82.91.101 [previously I was hooked to 203.82.79.2 and 203.82.91.34] Please refer to the attachment below:

Since the early of this week, there were several complaints with regards to the Prepaid Broadband offered by Celcom. This package operate using WCDMA network spectrum which offers speed of up to maximum 384Kbps only. The most common problem, is that whenever subscriber want to do the connection, error message pop up saying that service is unavailable.

As noted on the previous post, Celcom Mobile Broadband are using Public Dynamic IP (which means that there is no specific IP address assigned to your connection and in most cases it may means that you are sharing a same IP with other subscriber). Most blogs out there mistakenly states that Celcom use static IP, however the truth is Celcom are using Public Dynamic IP where several IP are shared by Celcom subscribers. Static IP means each subcribers got their own IP which in this celcom broadband scenario is not the case (since subscriber are sharing the IP and not using distinctive personal IP per subscriber)

This is a general outline using your phone as a modem for Celcom BIS subscribers. Please note that these steps are applicable generally for all Blackberry smartphone, connected to a Windows based PC/Laptop using USB cable.

Connect Your BlackBerry
Make sure your BlackBerry is connected by USB cable, and your BlackBerry Handheld Manager is running (just launch BlackBerry Desktop to run it.) This is necessary for using the BlackBerry as an external modem. You cannot use BlackBerry as a modem unless you have BlackBerry Handheld Manager running in the background

Modem Driver Install
If you installed a recent version of BlackBerry Desktop that came with a 7100t, 7290, 7250, or 7520, it should include modem drivers and already be automatically installed. In the event you need to manually install them, the modem drivers should be located in this directory:
C:\program files\Common Files\Research In Motion\Modem Drivers
However, if you are having problems with these drivers, uninstall, delete all leftover RIM files, and then reinstall the latest version of BlackBerry Desktop.

Verify The Modem Driver Exists
Go to Control Panel -> Phone & Modem Options. In the Modems tab, you should see a new “Standard Modem” on a new port (such as COM6 or COM11). If you do, jump to the next step.

However, if your modem is missing:
If this modem entry is missing and cannot be found using Plug n Play, you may have to manually add it. Verify you have “RIM Virtual Serial Port” drivers installed. Find out which COM ports the RIM Virtual Serial Ports are, go to Control Panel -> System -> Hardware -> Device Manager -> Ports (COM & LPT) … This will tell you which COM ports your BlackBerry Modem is on. Next, go to Control Panel -> Phone and Modem and Remove the modem. Re-add the modem by clicking on Add. You MUST select the “Standard 33600 bps Modem” (correct) INSTEAD OF “Standard 56000 bps Modem” (wrong). Click Next. You will be asked for the ports to add this modem to. Add this modem to all COM ports that the RIM Virtual Serial Port is on. You must choose the “Standard 33600 bps Modem” because of incompatible AT commands that result in an Error 628. Don’t worry, the speed won’t be slower.

Verify The Modem Driver Is Functioning
Go to Control Panel -> Phone & Modem Options. In the Modems tab, you should see a new Standard Modem on a new port (such as COM6 or COM11). Click Properties -> Diagnostics -> Query Modem. You should see the following:
Quote:
ATQ0V1E0 - OK
AT+GMM - BlackBerry IPmodem
AT+FCLASS=? - OK
AT#CLS=? - OK
AT+GCI? - OK
AT+GCI=? - OK


IMPORTANT SPECIAL CONFIGURATION STEP
Click Properties -> Advanced and add only ONE of the following Extra initialization commands with the appropriate carrier-specific APN Setting:
+cgdcont=1,"ip","celcom3g"

Add A New Internet Connection
Close the Phone and Modem Options and the Control Panel. Create a new connection with Start -> Connect To -> Show all connections -> Create a new connection.

1. Click Next

2. Select “Connect To The Internet” then Next

3. Select “Set up my connection manually” then Next

4. Select “Connect using a dial-up modem” then Next.

5. Check only the Standard Modem (if prompted).

6. Give the connection a name such as “BlackBerry Modem”, then Next.

7. On the next screen, key in the dial up number: *99# or *99***1#

8. Click Next.

9. On the next screen, key in username and password:
Username: blank
Password: blank

10. Clear all checkboxes (”Use…when anyone…” and “Make this the default…”)

11. Click Finish


Disable IP Header Compression
Make sure TCP/IP Properties (Advanced) “Use IP Header Compression” checkbox is NOT checked. To verify this, do these steps:

1. Start Menu->Network Connections->”BlackBerry Modem”
2. Click Properties Button
3. Click Networking Tab
4. Select “Internet Protocol (TCP/IP)”
5. Click Properties Button
6. Click Advanced… Button
7. Disable “Use IP header compression” checkbox
8. Click all OK buttons to close all dialogs
Also make sure you clear all these checkboxes, if you see any of these checked:
Turn off “Enable Hardware Flow Control”
Turn off “Enable Modem Error Control”
Turn off “Enable Modem Compression”