Computer dial-up connection Suddenly can't go online how to solve

Most families now use dial-up links, if it is more than one computer, it is generally an account under a wireless router, and then everyone can on, but if a single computer, most of the cases are directly connected to the telecommunications broadband or unicom broadband, in general are 2 or 1 years or so, So this situation, the general telecommunications or Unicom will give us an account, we just click on the desktop Network connection, enter the username and password, you can access the Internet.

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But sometimes when we re-enter the username and password for verification, we find that we cannot connect and report 629 errors. In fact, this is often the case when we enter the password incorrectly caused by the time. Of course, if the error code is 621, it may be the fault of the router, so do not panic in this situation, first to ensure that the account and password you entered is correct, if it is correct, then do not have to control so much. You can solve the problem by hitting the customer service phone of your broadband provider directly.