On my Droid, I had experienced the Wifi random drop issue as described in the thread https://supportforums.motorola.com/t...art=0&tstart=0.
The situation is, even with the strongest signal (next to the router), my Droid will still randomly drop the connection (wifi icon was shown as connected, but can't surf website), whereas both of my laptops still working flawlessly with the router.
After did some research of the thread mentioned above, I found that the problem is because of Droid wifi will turn into power saving mode after some time, and it can't be controlled by the "Wifi Sleep Policy" since they are different concept. The wifi power saving mode cause the Droid stops the wifi power temporarily, and resumes when need. On some router, it may not support such operation as the router will drop the connection, and finally cause the compatibility problem.
The solution is to turn the Droid wifi power saving off by using the command "wlan_cu". For details, you can read this page: https://supportforums.motorola.com/m...F91FF0E7.node0.
Finally, I had wrote an application long time ago, to turn off the wifi power saving mode each time when the wifi connection was established. Since the command is only effect for the current session, so we must apply it each time the connection is established (IP acquired). The application will check if your wifi is turned on and established, and apply it for you every time.
I had used it long time ago and haven't experience the wifi problem again. So to share those hint with you all.
Search the name "DROID/MS WifiPowerSavingOff" or simply "WifiPowerSavingOff".
Remember it requires your Droid/MS to be rooted and grant the "Always" permission in order to use it. Also, it has some compatibility issues across different devices, as someone reports that not supporting Froyo 2.2 yet. BTW, if our device on Froyo 2.2 still have the wifi problem, I will try to update it in order to support in the new version.