Most Common Network Problems How to Find & Fix Them

Most Common Network Problems: How to Find & Fix Them   

Users get frustrated by occasional network problems, which also lower the productivity of your team, and are challenging for network administrators to fix. Network performance may be impacted by a number of problems, some of which are challenging to identify and understand.  

 

Networks are networks. Things still go wrong even with the best of intentions to keep everything in order during the day. These are a few common network issues, along with simple solutions and, even better, safeguards against their occurring in the future. 

  

What are Network Problems?

Symptoms of a network problem include poor VoIP quality, delayed video calls, slow application or network speed, buffering downloads, and no Internet connection. If you’re experiencing problems utilizing vital programs or doing routine Internet tasks, it’s most likely because of a problem with your network.  

 

VoIP talks, ERP programs (NetSuite or SAP performance issues), file downloads, and other activities are all affected by network problems. If you can’t access anything other than your computer owing to a significant network disconnect or network connection issues, you’re most likely dealing with a network problem.  

  

Certain network troubles can be caused by failing routers, switches, and firewalls, as well as unanticipated use patterns such as abrupt spikes in network traffic, changing program settings, or security flaws.  

 

Unattended network issues can have serious consequences for your company network and are highly frustrating. As a result, understanding possible network difficulties and routinely checking network performance are critical for detecting and resolving issues before they affect your end consumers.  

 

1- Duplicate IP Addresses  

  

When two or more devices on a network share the same IP address, this is referred to as duplicate IP addresses. Network connection problems and communication disruption may result from this dispute. To maintain seamless network functioning, duplicate IP addresses must be found, and each device must be given a new IP address.  

  

The Quick Fix: Usually, the default DHCP setting on your router is responsible for this. Near the beginning of your subnet, DHCP is probably trying to assign an address to your new device; yet it’s conceivable that another device with a static IP already resides at these low-numbered numbers. A new device or server that you’ve just added to your network can have its own DHCP server. Just turn off that device’s DHCP server to get your network back in order.  

  

2- IP Address Exhaustion  

  

When all the IP addresses accessible inside a certain address space are used, a phenomenon known as IP address exhaustion takes place. IPv4 addresses are becoming more and more rare due to the increase of internet-connected devices. The adoption of IPv6 provides a bigger pool of unique addresses to handle growing internet demand, which helps reduce IP address depletion. If the workstation has assigned itself an IP address that begins with 169.x.x.x, it means that no IP address was available from the DHCP server.  

  

The Quick Fix- Some cable internet customers may not have a local router; in this scenario, your ISP may sometimes allocate IP addresses straight to you. Most likely, your ISP has run out of permitted IP addresses for you. Buying a WiFi access point with an integrated router or a separate router is the answer to this problem. By doing this, you generate your local pool of internal addresses, preventing address exhaustion.  

  

The default address pool on a local router that uses DHCP may be insufficient for your network if you currently have one. You may change the address pool’s size to suit the requirements of your network by gaining access to the DHCP settings on the router.  

  

3- DNS problem  

 

DNS problems refer to issues related to the Domain Name System (DNS), which translates domain names into IP addresses. Common problems include DNS server failures, misconfigurations, and domain resolution errors, resulting in website inaccessibility, slow internet connections, or incorrect webpage loading. Troubleshooting DNS problems involves diagnosing and resolving underlying issues with DNS servers or configurations.  

 

The Quick fix- It is possible to set up workstations and other network devices to use their own DNS servers instead of DHCP-assigned servers. If an inaccurate DNS server is given, you may check the ‘Internet Protocol Version 4 (TCP/IP)’ settings for your adapter, so choose “Obtain DNS server address automatically” instead.  

  

4- Single Workstation Unable to Connect to the Network  

 

If only one workstation is experiencing network connectivity issues, there can be a local issue with that machine. Possible causes include incorrect network configurations, broken wires, or issues with the network adapter itself. Troubleshooting includes checking network adapter settings, verifying sure the device has the correct credentials, and confirming that it has permission to access the network. Restarting the workstation and verifying the network setup may fix the issue.  

The Quick Fix- The first step in fixing this network problem is to remove any visible obstacles to communication, including a broken cable, a weak Wi-Fi signal, a malfunctioning network card, or the wrong drivers. Make that the IP, subnet, and DNS servers are set correctly on the workstation’s network adapter.  

  

If it still doesn’t work, make sure the device’s firewall software is activated and that all required ports are open to the outside world. Common ports for web traffic are 80 and 443, while for email transmission, they are 25, 587, 465, 110, and 995.  

  

5- Connection Errors and Network Connectivity    

Connection difficulties are among the most annoying and causing network issues. These issues can be caused by various faults and problems with the machine and/or network. So, if your computer has given you the wonderful “Limited or no connectivity” warning message, here’s how you can fix it: 

The Quick Fix:   

 

Step 1: Restart your computer. A fast reset can be a lifesaver. If you’ve previously done this and restarting the computer failed to assist you, go to Step 2. 

  

Step 2: Restart the router or modem. DO NOT reset or restore the router or modem’s settings to factory default. Simply switch the network or modem off and then back on. If this does not work or just works temporarily, proceed to Step 3. 

  

Step 3: If you’re linked to your network via an Ethernet wire, disconnect it and then reconnect it. If necessary, replace your network cable with a new or different one to see whether this was the source of the problem. 

  

Step 4: If you’re connected via Wi-Fi and encounter this error, the network adapter may be trying to save power. To stop this, navigate to the Network and Sharing Center in the Control Panel. Right-click “Wi-Fi Connection”, then “Properties” and “Configure” to see the “Power Management” page. Click and uncheck the box that permits your computer to switch off the device to save power.  

  

Step 5: If you’ve done everything and still can’t connect, disconnect your router and connect your computer straight to the modem. If this resolves the problem, your router is likely to be faulty. If not, please contact the router vendor for assistance.  

  

If the issue persists and the network is still down, contact the internet service provider 

 

6- Internet connectivity is not available on the local network 

 

An issue with the network’s internet connection might be the cause of no internet access on the local network. Possible causes include router, modem, or ISP problems, as well as DNS or configuration issues. Hardware connections are examined, the router or modem is rebooted, internet settings are examined, and if necessary, the ISP is called during troubleshooting. The issue can be resolved by updating the firmware or adjusting the network configuration.  

The Quick Fix:   

The first thing to do is to reset the modem and router. Communication breakdowns may be found using the tracert then function. It will crash on the specific router hop that is the source of the issue. Send your results to your ISP, along with any relevant screenshots.  

  

7- Slow Internet Performance  

 

Slow performance on the internet indicates a decline in speed and responsiveness while accessing websites or online services. Outdated hardware, software problems, bandwidth limitations, and network congestion are a few of the potential causes. Troubleshooting includes checking the internet’s speed, resetting the modem or router, closing unnecessary apps, and updating the software on your device. Contacting the internet service provider (ISP) to inquire about service disruptions or to upgrade to a faster plan might help improve internet speed.  

The Quick Fix:  

Use websites that provide speed tests and run them from geographically distant servers. This may identify network congestion hotspots for the ISP. When saturation happens with cable internet, your ISP will have to pay for an expensive capacity increase since your neighbors share the local network. Inform your ISP of your findings so they may take the necessary action to fix the problem.  

  

One sometimes disregarded component of internet speed is DNS servers. Incorrect DNS server use may cause load-balancing issues or route bottlenecks. Even while you should ideally utilize your ISP’s DNS settings whenever feasible, it’s conceivable that traffic is being routed via crowded web caches by them. You may use OpenDNS in place of DNS temporarily by adjusting your settings.  

How Geek Squad Assists Help You with Network Issues?

Geek Squad Assists specializes in fixing network issues swiftly and effectively. They address common network problems like slow connections, dropped signals, or router malfunctions. Utilizing advanced network diagnostics tools, they identify underlying issues affecting connectivity. Geek Squad Assists experts meticulously troubleshoot routers, modems, and network adapters to ensure optimal performance. They provide comprehensive solutions tailored to individual needs, ensuring seamless network operations. With the expertise of Geek Squad Assists resolves network issues promptly, enabling users to enjoy uninterrupted internet access. Geek Squad Assists ensures dependable network connectivity and peace of mind whether it’s configuring a new network or troubleshooting an old one. 

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