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Getting Invalid MAC Address Error Message

For the past week, I have been noticing slower Internet speed on my home computers without any reasons. I am not using any torrents or other bandwidth consuming tools on any of the PCs but recently one representative from my ISP informed me about over bandwidth usage. I inquired her about my reduced bandwidth but she said everything from their side was working perfectly. Since the ISP side is working perfectly, the problem must be from our end. Perhaps some other user is using our wireless anonymously to access the Internet and may be downloading large files. Airtel is my Internet Service Provider and my experience with them is so far good. I have been getting almost the same speed they offered and it is the time to instigate the culprit who uses my home WiFi. Airtel supplied D-Link DSL 2730U modem and it doesn't have any feature to find the log of connected devices. So I have decided to change the current WiFi password and allow only my home computers and laptop to join the WiFi by using MAC Restriction. However, soon I have noticed a new error message while adding MAC addresses to the allowed devices list. MAC address "XX:XX:XX:XX:XX:XX" is invalid MAC address is the error message which prevented me from adding.

Prevent Automatic PC Reboot
The error message looks like the one below.


If you don't know how to improve the WiFi security on D-Link DSL 2730U, visit the link below.
How to Secure Airtel DSL Modem

This article discusses the common reasons for rejecting a Physical number by a router while configuring a Media Access Control filter.

Common Reasons For Invalid MAC
  • If you are using a different format to enter Media Access Control number other than the one which is supported by the device, you will receive the invalid MAC alert. Once you click on the OK button, the entries you entered will be deleted automatically. So the first step you have to do, if you are facing this situation, is to check the correct format which is supported by the device. Certain devices use ":" to separate the HEXA decimals but some devices use "-". Try different format and use the one which is approved. I have used a hyphen instead of a colon to separate the numbers because my computer showed the MAC number in xx-xx-xx-xx-xx-xx format. A simple mistake but D-link rejected my entries.

  • Another solution for this issue is to upgrade the current firmware. If your router is having an outdated version of firmware, it is the time to flash it with latest one.

I have changed the format from hyphen to colon. After that change, D-Link showed no error.


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Website Down Due to NameCheap DNS Server Issues

Today I saw one strange redirection issue with CoreNetworkZ.com, where its bare address is not opening or redirecting to the WWW version. At first, I thought it might be an issue with my Internet Service Provider, but their support team said that everything was working fine at their side. My next move was to check the Blogger settings. However, detailed research on popular webmaster forums revealed that the issue was not with Blogger custom domain name settings.

As a last resort, I contacted the live chat support of my domain registrar.

I have registered https://www.CoreNetworkZ.com with NameCheap, one of my first choice domain name registrars.

While troubleshooting the issue with the support person, he informed me that it was due to DDoS attack against their default DNS server and they might want a little bit time to resolve it.

He suggested me to change the current DNS server I selected for my web address to backup DNS System.

Though changing the current DNS server may help to escape from DDoS attack, it can take up to 24 hours to see the result.

To see the updated news about the DDoS attack on NameCheap DNS system, follow the link below.
http://status.namecheap.com/?p=17097

If you are a NameCheap customer and facing issues with redirecting naked domain address to WWW version, you may follow the steps below to resolve the issue.

I have checked the status of CoreNetworkZ with various online tools. See the screenshots below.


There are no problems with the WWW version.


I have also received a warning in Google Webmaster Tools account.



How to Change Current NameCheap DNS Server
You can change the current NameCheap DNS Server with a better performing one for your website.

To change the current DNS settings of your NameCheap domain name, follow the instructions provided below.

  1. Login to NameCheap account using the link https://www.namecheap.com

  2. Go to Manage Domains from 'My Account'

  3. Click on Switch to DNS System v1 under General in the left-hand side


  4. Now you need to check the checkbox at Transfer your domain to DNS System v1


  5. Click on the Save Changes button

  6. Now you will see the DNS status update message


  7. Make sure the Domain name servers are updated



Problems With a Change in the DNS System
According to NameCheap, most of the features will work properly after changing the DNS Server.

  1. Setup Blog Web Address
  2. Preserve Traffic and Backlinks to Old Blogspot Links

But if you have set a 301 Redirection [URL Redirect 9301 ] instead of URL Redirect, it will become a plain URL Redirection.

You will see troubles with email forwarding for a few minutes after the NameCheap DNS change.

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They also warn about the time delay to see the results of the changes. Depends on the Internet Service Provider, a time delay between a few minutes to 24 hours possible to see the result.

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Though these limitations are really annoying, it is better to use the backup Server until the DDoS attack is over.

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Six months ago I faced a similar issue with Blogger. All blogger sites with custom URL failed to open for a day. If you like to read more about those issues, visit the link below.
Are These Websites Down Or Just Me?


Where Can I Find Solution For NameCheap DNS Problems?

You can find solutions for the DNS server issues from their Status Update page.

If the issue you are facing is a global NameCheap server issue, you can find the details from the following page.

https://www.namecheap.com/status-updates/

Solve GoDaddy Error: There is a Problem With the Information You Provided

GoDaddy is one of my favorite domain name registrars and I have been using their service for the past five years. They offer low-cost domain name registration for the first year with a rate not many other registrars cannot offer. I have been using this privilege ( like 108 Indian rupees for a .com domain ) to register names for my projects but recently I faced an issue while placing the order. The system is not letting me complete the transaction. At first, I thought it is a common bug but sooner I discovered the true nature of it. Whenever I use GoDaddy promotion code to cut down the price, the system shows error. Whenever I click on Place Your Order button, it responded with the following message.

There is a problem with the information you provided. Please ensure all fields are completed properly.


So many thoughts went through my mind after seeing this alert. I checked this situation without using their promotional code and that time everything was fine. There was no error message while clicking the Place Your Order button when I was ready to pay the full price. I confirmed the situation with my friends and they said that whenever they continued the shopping without applying coupon codes, there was no error while placing the order. Whenever they used coupon code to get a reduced rate, the same issue appeared. I was in the impression that 108 Indian rupee for a new domain name from GoDaddy is just a marketing gimmick to attract users and they do want us to pay the full amount once the order is about to complete. However, I was wrong and I knew it while talking with their customer support. We can solve the GoDaddy billing error There is a problem with the information you provided. Please ensure all fields are completed properly. by following a simple step.

Solution

The above-mentioned error code appears only when a user uses coupon code to cut down the price of the product he purchased. It is because the coupon code he used is applicable only for USA and Canada customers. So if you are from a different country, you are not authorized to use them. However, GoDaddy doesn't discriminate people on the base of their logon IP location. So if one user changed his default currency from his local currency to US or Canadian Dollar, this error message will not appear. This facility only works for those users, whose cards support payment in US or Canadian Dollar. I have changed my default currency from Indian Rupee to USA Dollar and the error message disappeared.


How to Change the Default Currency Set on GoDaddy

If you do not know how to change the default currency set on a GoDaddy account, follow the steps below.
  1. Login to account

  2. Go to My Account

  3. Click on Settings

  4. Change the currency selected at Currency Preference in the Account Owner Information

  5. Click on Save Changes button

To know more about it, I recommend you to visit the link below.
https://support.godaddy.com/help/article/6192/changing-your-default-display-currency

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