I have a Beetel 450TC1 wifi router that was provided/installed by Airtel with its ADSL connection.Internet connection on my Dell laptop, a Sony Vaio laptop, Blackberry phone as well as a Samsung netbook connected to this wifi router all stop working around 1 minutes after the router is switched on. Switching off the router and the switching it on again solves the problem for under 1 minute and then the wireless internet connection stops working again.All PCs that are connected to this router by ethernet cable have no problem at all and connection lasts for the whole day without any issues. Only problem is with wireless connection that stops working after around 1 minute of switching on the router.Airtel support guy tells me that their router is OK and all my laptops, netbook as well as Blackberry have problem. I believe there is some problem with the router settings or may be there is some hardware problem.Has anyone else also encountered this same problem? If yes, then what is the solution?Thanks in advance for the reply.