See if this helps with error 80048820

My article about solving error 80048820 has ranked highly in search engines right from the week I posted it, as a result a lot of people have been referring to it and commenting on it. A few of the comments are people reporting they found another way to solve it, the big one is changing a setting in their router settings.

The first one is posted by S t r e t c H, he gives the steps involved in changing the MTU (maximum transmission unit) size in his NETGEAR wireless router to a value of 1400. This setting can be found in most routers (I think?), usually under WAN settings.

Shane also reports doing the same thing on his DLINK wireless router fixed this problem. Same with he next commenter, Robyn.

So, if you have been constantly getting this error for a while and you know how to change this setting on your setup, give it a try and see if it works. I would like to get some feedback on whether it works or not for those who do try, so I can post some more specific instructions for others.

202 Responses to “See if this helps with error 80048820”


  • works for me also :D
    thanks for this one

  • I received error 80048820 on msn and could not send emails after upgrading my Belkin modem router firmware.

    I spoke to BT and told them I suspected the default MTU of 1432 was causing problems and asked what value they recommended. The woman told me to leave the setting at default as routers are set correctly, and that the supported range in the docs was 1450 to 1500. (Spot the deliberate mistake :P ) So I tried 1458 next with no luck, and then 1500 MTU for which everything connected fine.

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