Reasons for MSN Messenger not being able to log in properly and solving

The reason why MSN Messenger cannot log in normally is complicated. Except for user password error and improper setting of MSN itself, it may be caused by the following reasons:

1. Network problems

The current network is becoming larger and larger, and the environment is becoming more and more complex. Problems in one of the links may cause network failures, such as TCP/IP protocol components, network communication devices, Network lines, gateway servers, etc. After the MSN cannot log in normally, you should use the Ping command to check whether the internal network is unobstructed. Then, use the Ping domain name (or public IP address) to check whether the public network is open. For direct access to the Internet. Users can use the "Ping domain name (or public IP)" command to view it.

2.MSN server problem

When Microsoft MSN server fails or maintains, it will not be able to log in normally. At this time, there will be corresponding prompt information.

3. Network firewall configuration is not appropriate

MSN login to use TCP 3000 ~ 4000 port, if the client customizes the network firewall IP rules, disable TCP 3000 ~ 4000 port, As a result, you cannot log in normally. Therefore, users are advised not to manually disable TCP ports 3000 to 4000.

4. Gateway Filtering Software Restrictions

In the LAN, using the gateway filtering software can disable MSN. Once disabled, users cannot log in to the MSN server normally. At this time, the user can use MSN to log in only by the administrator canceling the disable restriction.