Virgin Media Netgear VMDG280 Wireless Connection Problems

I was having very annoying wireless connection issues with Virgin's Netgear VMDG280. Most devices would be fine, but the odd one would connect and have wireless access for a few seconds, but then the wireless connection would die, though the device would still report that it was connected. Restarting everything/anything would just repeat the same. Last night I tried reducing the maximum connection speed of the router from 300Mbps to 54Mbps, which seemed to solve the issue completely. I've since put it up to 145Mbps which seems like a happy medium.