The problem is, everything works fine for about 10 minutes, and then, suddenly I cant open any websites, I get a page on my browser(Google Chrome), "DNS lookup failed". It stays that way for about 20 to 30 seconds and gets fixed by itself, and its really annoying. Modem : Motorola SB5101 Router : TP Link TL-WR340G I've already tried Safe Mode and the problem is still there, and also In-order to check whether its only the PC, I've tried it on other devices which connect through my Wireless Router and its the same on those too. So, am I right if I were to say the fault is either within my Modem or the ISP ?

Hello, So, as I see the issue with DNS resolution. Please start by disabling all security softwares on your PC. Also, make sure that you are using your ISP DNS server as primary DNS server. If this does not help, I think it will be better to ask your ISP for assistance. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer

I Disabled the security software, it still didn't work. Called the ISP and got it fixed, thanks for the help.