IT Queries: Computer problems answered

For the past 3 weeks whenever I forward an email that has a GIP file on the front page it wont go. The error Number is 0x800CCC0F.

If the said email is auto forwarded thorugh the Message Rules then no problem… only when I manually forward the email that it wont go.

I have been in touch with and spent many hours with  my ISP (IINET), same with my modem maker and also with Microsoft.  Final advice is to delete OExp and use another mail program.

This problem happened at the same time on my PC, My laptop and my husbands laptop. I use Outlook express 6 and Int Explor. V7 on my laptop.  My husband has Int Expl V7 and Windows Web mail on his laptop.

None of these computer can now send Gif files if they are on the front page. (Attachments are OK)
I have bought and changed to a new modem.. Dlink. I removed my antivirus for 4 days (AVG) I haveswitched off firewalls.  I have spent hours fiddling with settings.

The only things that all computers have in common is that we use IINET yet they say that there is no way they can have anything to do with this problem.

The other thing that all computers have in common is that about 3 – 4 weeks ago we did a Registry cleanup … using the free CCleaner.  Have spoken to a computer wiz and he assures me that that could not have caused this.

I am not totally convinced that the Reg Cleaner hasnt caused a problem but I just dont know.

Hope you can help.

The 0x800CCC0F error message means something is interrupting the connection with your mail server.

Microsoft have a number of Outlook Express troubleshooting tips on their website including disabling firewalls and checking your mail server settings. It sounds like you’ve already covered those with your ISP.

It sounds like this could be an MTU (Maximum Transmission Unit) problem. The Internet works on breaking down information into little parcels and the MTU is the biggest packet your computer will send.

The easiest way to reduce the MTU on a Windows machine is to use the free DrTCP program from DSL Reports. There are detailed instructions on using DrTCP on the DSLReports website.

A trap with DrTCP is you need to select the correct network adaptor that you are using to access the net. Once you’ve chosen the right connection, you’ll need to reduce the MaxMTU to a lower setting, say 1450. 

Reboot your computer and check that everything works, as you may find changing the setting could affect other applications.

Changing settings like this can cause problems and is best done by a qualified computer technician so you may want to contact your local computer tech to help you.

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