Network connected but no internet

Problem: When users connect multiple devices suh as mobiles, laptops, tablets with the same networks some of the devices may have internet connectivity and some not. 

Solutions: This problem may be resolved using different measures. Since root cause of the problem is dissimilarity in wireless settings of the devices, following measures may help resolve internet access problem.

1. Old firmware - Update of firmware of both router and device may help resolve the problem.

2. Change of router - New router with latest firmware may help overcome the problem.

3. Change of wireless settings - Changing the protocols (b/g/n) may temporarily solve the problem of internet access but users may need to refresh access point frequently clicking 'forget network' and reconnecting the same.

4. Use of a repeater - If users connects a router as repeater using same SSID may resolve problem permanently with old routers.