A recent topic of discussion, which has been cropping up more frequently over the last couple of weeks, is that of the MTU (Maximum Transmission Unit) size. BT have always recommended a setting of 1458 bytes for optimal performance. Although BT should have sent this information out to all ISPs, few appear to have informed their customers - probably due to fears of increased support loads likely to be incurred.
The MTU defines the maximum size that a single piece of information ("packet") is allowed to be. It is important that MTU is not too large or too small because this can greatly reduce the performance of your ADSL line, as some of our users have discovered. In response, we have produced an information page containing the steps involved to easily adjust your setting. Some users have discovered that an MTU of 1430 delivers good results so our technically astute readers may be interested in testing this value also.
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