Resolving iPhone wireless dropouts with DD-WRT

I use a couple of Linksys DD-WRT based routers in my home network and have done so for a few years. I love the flexability of advanced options like radius and the reliability I recieve from these devices.

I recently began experiencing some problems with iPhone connections being unreliable, especially after the router had an uptime of over 8 hours. A reboot of the router fixed the problem but rebooting the router every day isn't my idea of a resolution.


The settings that worked

These settings are a mix of settings from around the web, since combining these I have had perfect reliability with my iPhones.

1. Login to your DD-WRT device.

2. Click the 'Wireless' tab.

3. Click the 'Advanced Settings' tab.

4. Adjust the following settings.

Beacon Interval 50

Fragmentation Interval 2304

RTS Threshold 2305

The key setting is adjusting the Beacon Interval from the default of 100 to 50. The other two settings I couldn't see any differences but they didn't negatively impact performance so I left them.

5. Click 'Save' and then 'Apply Settings'.

I tested these settings on a Linksys WRT54G running v24 SP1 Micro and a Linksys WRT150N running v24 STD and there was no negative performance impact on my other devices (laptops, iPad, etc).

The only other settings I adjusted was TX Power to 84, but that was just to cover a larger area in my home and is totally optional.

Ensure you do your own before and after performance comparisons, but as far as I can tell these settings only bring gained stability.