Laptop acer aspire 4520

[yulia rescue]

Hello,i have laptop aspire 4520,,
but it's hard to me to use my modem..it has already been installed but it didn't work at all..
so what should i gonna do?

 

[ksiemb]

Hello,i have laptop aspire 4520,,
but it's hard to me to use my modem..it has already been installed but it didn't work at all..
so what should i gonna do?

In device manager, are there any "other Devices" highlighted in yellow ?

Any error code for the device ?

Was this a new install of the device ?

Check here if you need drivers: http://www.acerlaptopdriver.com/aspire-drivers/