Wifi on Netgear WGR614 router slow wifi fixed !!!!!!
1. Upgrade to latest firmware for your router.
2. Within router settings my mode was setup to use 802.11B & 802.11G mode, change this from either auto or B&G and select it to use 802.11B ONLY or B mode only.
3. Save settings, reboot router and reconnect with your I Phone.
This has worked for me after 2 months of woes. Hope It Helps
I Phone, iPhone OS 3.1.3