Q: Why does my Samsung Galaxy S Android device keep losing its WiFi connection?
Why does my Samsung Galaxy S Android device keep losing its WiFi connection?
Why does my T-Mobile Vibrant keep dropping its WiFi connection?
Android 2.1 (Eclair) on Samsung Galaxy S (I9000)
Tested on both unlocked generic Samsung Galaxy S and T-Mobile Vibrant T959
MITnet b/g/n wireless (SSID MIT)
The Samsung Galaxy S (sold under various names by US carriers, such as the T-Mobile Samsung Vibrant, the AT&T Samsung Captivate, the Sprint Samsung Epic, or the Verizon Samsung Fascinate) is an Andriod 2.1 phone with an 802.11 b/g/n multi-protocol radio in it operating at 2.4GHz
At least on paper, this makes it compatible with MIT's 802.11 b/g/n wireless network
In practice, the phone will connect to the wireless network, but will stop routing traffic through wireless after a few seconds
This problem exists on other 802.11 b/g/n multi-protocol networks (for example, newer home routers or similar networks at other institutions)
The phone's WiFi works fine on 802.11 b/g only networks, or 802.11 n only networks
We are currently not aware of any resolution to this problem
On-line forums and Samsung suggest disabling multi-protocol support on your wireless router and switching it to either b/g or n only
While this is an option for home networks, it is not an option for institutional infrastructure networks supporting many devices
Problem appears to be limited to the Samsung Galaxy S phones, and does not apply to Android 2.1 phones with b/g/n radios in general
Several reports indicate that the Android application WiFi Fixer may help with this problem
The app monitors your WiFi connectivity and will take steps on your phone to refresh or restart your WiFi connection