Hello Joseph,
To my knowledge there are not any major known issues with the devices having faulty wireless components. It may be a localized problem.
First thing first, ensure you're on the latest firmware 1.2.4
http://www.cisco.com/cisco/web/solutions/small_business/products/routers_switches/SRP_500_series/index.html-tab-Resources
After the firmware upgrade, give the unit a factory default reset using the reset button, holding for 30 seconds or so.
Once this is done, check to see if the wireless drops continue. If so, you can try to further narrow the problem via the device or the wireless clients/ environment.
If you continue to drop wireless connection, check your wireless connection status speed. As example, connecting at 54 mbps, it should always remain connected at 54 mbps. It shouldn't ever go down. If there is a fluctuation, going down, there are some interferences making problems for you.
If the mbps seems stable, try to use a non-mix mode connection such as G only. Ensure the channel is static assigned as 1, 6 or 11. If you use channel 11 and there are some drops, then change to 6 or 1.
Also ensure the device is placed optimal, central to the connection, in an elevated position, away from metal, reflective or absorbent objects. Ensure the antennas are placed vertically.
Lastly, you may also check the wireless connections nearby using a tool called INSSIDER, this is a free download.
http://www.metageek.net/support/downloads/
If your unit continues to drop connections after all this information give the SBSC a call any time.
http://www.cisco.com/en/US/support/tsd_cisco_small_business_support_center_contacts.html
-Tom
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