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Unlimited Horizon - Draytek 2820 Router

The main issue with the Unlimted Horizon service on the Draytek 2820 Router is UDP fragmentation this can cause issues with DNS resiliency. The following solutions are recommended:

  1. 1. Download the latest firmware from Draytek which should contain a patch to solve the problem with UDP fragmentation
  2. 2. Specify the DNS servers in the Draytek LAN Config to a 3rd party DNS server such as Google (
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