Unusual wireless latency and speed issue

Question

I have an odd problem where wireless connections to the home hub 3 will start to exhibit very high and varied latency from 40ms up to 1000ms every 15 to 30 seconds (pinging from laptop to homehub) and slow throughput of about 4Mbit.  The link speed is solid at 144Mbit/sec and the signal is always on maximum.
If I change the wireless channel on the router and the change it back to its original value the connection starts to behave and latency is normally 1-3ms with the odd spike up to 90 or so and realworld throughput jumps up to 60+Mbit/sec.
I suspected packet fragmentation back have confirmed this is not the case and now believe it to be a problem with the home hub as restarting it or changing the wireless channel will fix the issue for a few hours.  Anyone else had this problem and resolved it?  It is a pain because the connection does still work but it makes streaming high quality media impossible and online gaming becomes a pain with constant lag until I poke the router.

Answer 1

I assume you're using windows vista, 7 and it probably affects windows 8 as well.
When you're connected wirelessly, it never stops searching for a wireless connection and briefly disconnects you from the one you are connect to.
You can turn this off with a program called WLAN Optimizer.
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