When using the connection of computer systems to local networks or the Internet based on outdated operating systems, as well as other systems, sometimes a message may appear that the connection is limited or absent. We will take Windows XP as an example and try to consider what it may be connected with and how to solve the problem by the simplest methods.
Causes of Failures
When considering problems of this type, one should distinguish between the types of situations in which they are capable of occurring. Below we will describe materials related to two main areas: home terminals and corporate networks, because in both the first and second cases the message that the connection is limited or not available (Windows XP) may appear with similar motives.
The simplest reasons can be called a malfunction of the provider. There is nothing to be done - you have to wait for the elimination of problems on his part. However, as you know, Internet access is a paid service, so if the user or company did not pay on time, a message that the connection is limited or not available, Windows XP displays regularly when you hover over the network status icon in the system tray notification area .
However, this is only the simplest thing that can be. Most often, such failures occur due to incorrect or flown settings for the connection itself. Let us dwell on several possible options.
Connection is limited or not available: how to fix (Windows XP)?
In simple terms, such failures occur due to the fact that a specific computer terminal, laptop or devices connected to a network via Wi-Fi simply can not get the correct IP address, if it is, then it is assigned incorrectly.
In the simplest case, that for a standard connection using a network cable, which is for a Wi-Fi connection, first you need to check the basic settings. To do this, go to the section of the network and the Internet in the “Control Panel” and find the TCP / IP protocol (in the properties). Now we look at the IP address and related parameters in the protocol properties. In most cases, you should enable automatic address retrieval and check the connection again.
If this option is not provided, you need to enter the correct values of the IP itself, subnet mask, gateway, preferred DNS server, if necessary, specify a proxy server, etc. Most often, a proxy is not required, so one of the reasons when the connection is limited or absent (Windows XP) may be its use. In most cases, disabling the proxy fixes the problem. As for the parameter values, they need to be clarified with the provider.
For complete confidence, you can use the "Run" menu, where first enter the command command, then sequentially register ipconfig / release, and then ipconfig / renew with pressing the enter key after each command.
Limited or no connection (Windows XP, WiFi): what to do?
Now let's see Wi-Fi connections. Not everything is so simple here, although it is desirable to use the automatic receipt of parameters from a router, say, a router, for the TCP / IP protocol.
However, this is not all. To make sure everything is configured correctly, you first need to check the settings of the same router. Please note: in the LAN section, a DHCP server must be activated. If for some reason it is not involved, it just needs to be turned on.
The same goes for the DHCP settings in the system on a computer terminal or laptop. For verification, use the administration section located in the "Control Panel", with the subsequent transition to services. Here we first make sure that DHCP works, and the startup type is set to automatic. If it’s not, we’ll change the configuration, because if you don’t do this, a message stating that the LAN connection is limited or missing, Windows XP will display again and again. Yes, after adjusting the settings, you must reboot the system for the changes to take effect.
Other problems
As for other situations, they do not arise so often, but still, as they say, they have a place to be. For example, one of the most probable reasons for situations when the connection is limited or absent (Windows XP) may be an incorrectly installed encryption system, say, WEP instead of WPA / WPA2. Here you can install different types of WPA or disable network protection altogether (use the Disable Security parameter) on the router itself, after which the router needs to be rebooted.
Perhaps this is not the reason. There are times when the provider does not use filtering by MAC address, and the service is turned on. On the router on the Wireless tab, check that the Wireless MAC-Filtering line is deactivated (Disable disable parameter).
There are even cases when such a failure results in a system conflict with an antivirus or even a third-party firewall. But this phenomenon is very infrequent, so for obvious reasons it is not considered.
Conclusion
It remains to add that from the foregoing, the main conclusion can be made: it is necessary to use the assignment of automatic parameters to computer systems. In most cases, if, of course, such an option is provided, this solves the problem in full. In extreme situations, check the parameters are correct. The DHCP server on the router on the system is usually enabled by default. In addition, the issues of the operation of the corresponding drivers or the integrity of the connecting cables were not considered here. We believe that there are no problems in this.