Cannot connect to internet

I have an Acer laptop only 3 months old. I've had 3 mobile broadband for around the same time & have no problems up to last Friday (11th Jan). Since then every time I try to log in I get the message 'connection failure'. However I have tried the modem on a couple of PCs and it worked fine - so obviously my laptop is the problem. I have been in contact with 3 support but despite trying a number of things (uninstalling possible incompatible programs - connecting manually etc) nothing seems to work - in fairness as the modem is working I'm not sure what they can do for me. I haven't installed anything new recently so I'm not sure what could have happened before last Friday that would cause this. Any ideas?

Maybe a silly question but is there no support from Acer?

Duffman said:

I have an Acer laptop only 3 months old. I've had 3 mobile broadband for around the same time & have no problems up to last Friday (11th Jan). Since then every time I try to log in I get the message 'connection failure'. ....Any ideas?

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Is this message appearing inside of the '3' software? If that's the case, the problem is not with your laptop.

I think this message can be caused by too many people in your neighbourhood using the '3' data service. I've seen this even when the signal strength would be full-on. Another possibility is that they've lost your account details or you changed some setting within their software.

Can you try it with another PC at the same location & at the same time as the problem?

Have you tried it in different locations (e.g. other towns?)

Managed to connect again by going into system restore & restoring my laptop to an earlier time. This worked for both my usual location & a different location away from home. Not sure that this has solved the problem or simply bypassed it but its been working fine since yesterday. I suppose the reason I assumed it was the laptop is that I tried in on a PC in the same location & it worked when it wouldn't on my laptop.
Thanks for the reply.