Error 720 on XP while connecting to internet using cellphone

[Guest]

Dear experts,

I've got a problem when I tried to connect to ISP using my cellphone,
showing error message below after a pop-up window saying 'verifying username
and password' was passed successfully:

'Registering your computer on the network...

Error 720 : A connection to the remote computer could not be
established. You might need to change the network settings for this
connection.'
When I click on more info it says, 'A connection could
not be established because the Point to Point Protocol (PPP) settings
on your computer and on the remote computer do not match.'

I'm searching for solutions on google, but only reinstalling XP is likely to
be a unique solution.

My test cases performed:
1) pre-requisit: cellphone1, cellphone2, my_notebook_XP, ref_notebook_XP.
ISP1, ISP2
2) test result
<test case1 : cellphone1+my_notebook+ISP1> : Error 720
<test case2 : cellphone1+ref_notebook+ISP1> : success
<test case3 : cellphone2+my_notebook+ISP2> : Error 720

I've thought XP on my notebook is causing this problem.
I don't use a VPN, and I've got this problem when trying to connect internet
using my cellphone.

is there any patch or any plan from MS ?

Thanks,

 

[KenV]

Dear experts,

I've got a problem when I tried to connect to ISP using my cellphone,
showing error message below after a pop-up window saying 'verifying
username
and password' was passed successfully:

'Registering your computer on the network...

Error 720 : A connection to the remote computer could not be
established. You might need to change the network settings for this
connection.'

I just went through this--see my post today about dialup connections and
errors 6 and 50.

First, go to Device Manager and check for old adapters and
miniports --you'll have to view hidden devices to see them. Then, if you go
through your registry and get rid of all the Miniport references and the
other extra adapters--you will probably get rid of the Error 720 problem as
well. Incidentally, you won't be able to delete some keys unless you use
regedt32.exe and on each key that can't be deleted reset the permissions to
give you, as an administrator, access, after which you will be able to
delete them.

I would recommend setting a restor point before you start.

After you do this, Error 720 will probably disappear. But it may be replaed
by Errors 6 and 50, both appearing randomly. That is the problem i can't
solve.

Ken

 

[Guest]

Thank you for your response.

I didn't follow you clearly, especially removal regarding WAN Miniports in
regedit.
I am likely to cause my notebook more sophisticated.

any other simple way would be helpful for me.

Thanks again.

 

[KenV]

Thank you for your response.

I didn't follow you clearly, especially removal regarding WAN Miniports in
regedit.
I am likely to cause my notebook more sophisticated.

any other simple way would be helpful for me.

Thanks again.

Sorry, I don't really know of a simple way to do this other than to edit the
registry, something that can be dangerous to your computer's health if you
make a bad mistake.

Essentially, you have to search (use edit ==>find) on "miniport" without the
quotes, and every place you find it, delete the left side key it is in, or,
if it is just in a list on the right along with other adapters, just delete
the reference on the right, Then you have to do a similar search on any
other old or unused adapters or find under hidden devices or bad devices in
Device Manager and delete these references.

It isn't rocket science, but it's tedious, and if you're not used to doing
this sort of thing, it can get you into trouble. If you make a restore point
first you can usually revert back to it if the process gets you into
trouble.

Good luck.

Ken