Question

What are some real examples of configuring issues in Networking

Answer 1

Real examples of configuring issues in Networking

Networking issues are very common in these days. It always irritating and frustrating to handle and solve these issues. Sometime it is disaster when it happened on a business network. Let understand it.

A configuration is the way a system is set up, or the assortment of components that make up the system. Configuration is refer to hardware, software, or a combination of both.

When we connect two or more than two computer together is called Network. There are different types of network.

• · Personal Area Network (PAN)
• · Local Area Network (LAN)
• · Wireless Local Area Network (WLAN)
• · Campus Area Network (CAN)
• · Metropolitan Area Network (MAN)
• · Wide Area Network (WAN) , etc

Issues:

Unable to Connect to the Internet:- Using a wireless network is very convenient way, but can delay your productivity when it start to malfunction. There are different reasons for your wireless network is having connectivity issues, such as the wireless router or the network card itself.

Duplicated IP Address:- It may possible that you will see an error window on your screen saying that your IP address is already in use. There are few causes for this IP address conflict:

• Internet service provider accidentally assigned two people the same IP address.
• The network’s Dynamic Host Configuration Protocol (DHCP) server has allowed the same dynamic address to be assigned to multiple computers automatically.
• The system administrator has assigned a static IP address to a computer within the local network’s DHCP range, and the same address is automatically given by the local DHCP server
• System administrator or Admin could have assigned two computers on a local area network (LAN) the same static IP address.

VPN Errors:- The virtual private network (VPN) works to provide a safe connection between a local client and a remote server. If you can’t connect to a VPN, you’ll receive an error message that usually states something along the lines of “VPN error 800 – Unable to establish the VPN connection”. This can happen if the client device disconnected from the local network, the network’s firewall is blocking the VPN traffic, or if the name/address specified for the VPN server was incorrect.

Can’t connect to the application server: - The application the user is trying to open may alert that it cannot connect to the application server. This can be the case when using e-mail applications or CRM Applications. If the user has a proper IP address for the connection they are on, there may be a routing issue on the network between the user and server.

Duplex mismatch:-The connection will work but poorly with a duplex mismatch. The link lights will become active on both the switch and network adapter. Network performance will suffer greatly, with throughput dropping to 100Kbps or lower.

Slow application performance:- The application appears inactive or slow. It may freeze on a certain screen or halt while accessing data. Many issues can cause an application to slow down. Among the most common causes are server backups occurring during production hours, slow response from database servers, and packet loss on the network.

Printing problems:- Printing does not consistently work on the network. A printer may appear available but print jobs that are sent to it are not completed. If only one user is having this issue, it may be that the PC is not mapped correctly to the print server. If this is not the cause, the network between client and printer having the problem. Packet loss can cause printing problems as well as network connectivity problems on the printer itself.

Physical Connectivity:- The cables are used for connections, based on the type of connectivity. Like, for connectivity between a router and a computer the crossover pair of the cable is used. Thus make sure that the suggested and suitable cable is used to make a physical connection between any two devices. In today’s networks Gigabit to the desktop is common. The Gigabit requires four pairs of cable, so anything lower than Category 5 will not work for Gig. Any amount of untwisting of the cable (often near the RJ-45 termination or patch panel) can cause signal loss. This will result in FCS Errors on the switch ports or network adapters.

There are various tools that are used for checking the IP reachability issues and to locate where the packet is lost while communicating with the destination host. Such as SolarWinds Engineer’s, Obkio, Ping, Trace Route etc. These tools are very helpful for troubleshooting.