I just implemented a Cisco SG200-50 switch and setup a voice VLAN and updated the Cisco SRP541W to use a new DHCP pool for that VLAN. Since this occurred I have 3 Lenovo ThinkPad laptops that will not connect wirelessly. I have about 10+ devices connected fine wirelessly and I have connected new devices with success. However, these three laptops worked fine before the new switch and now do not. I rebooted the Cisco router and the three laptops connected successfully but about 5 minutes later they dropped and although it shows they are connected to the wireless network they have "limited access" and therefore are not getting an IP address or able to get out to the Internet. Is the Cisco SRP541W router somehow blocking their access?? Why would it work for 5 minutes and then drop?? I am so puzzled by this and would appreciate any help. Thank you.
