Wifi on OS X 10.7.5 not working

[Struggling with Mac]

Over the past few days, my wifi connection goes in and out (much more out than in). Under network diagnostics, both "internet" and "server" turn red. It's not the router - every other device in my house works fine. Also, the computer doesn't connect to my phone's hot spot via wifi, although I can access the internet on my computer if I use my phone's hot spot via blue tooth. I have a desktop operating on Mac OS X 10.7.5. I would really appreciate any help!

 

[oldscribe]

Hi and welcome,

Try this
1. Go to Preferences > Network
2. Add a new location
3. In the Show: menu, go to Network Port Configurations
4. Make sure AirPort is checked (it should be by default)
5. Drag Airport to the top of the list (above Modem)

 

[Struggling with Mac]

Thanks for the reply. I tried the first few steps with no luck. As for steps 4 and 5, I don't use AirPort. I have just a regular cable modem/wireless router. I've used the router on the mac since I've owned it for about a year. I never had any problems with it until this past week. As I mentioned, the existing router works without problems on both of my iPads and iPhones still, not to mention my TVs, PC, and Roku players. Any other suggestions?

 

[oldscribe]

Hi,

iPad and phone are wireless so just maybe it is the data cable, what happens if you change the cable or run the iMac wirelessly?

 

[Kaveman]

there is a limit on WiFi routers, most only support 5 devices, check that you haven't reach the max number of devices.
Apple BaseStation the limit is 50.