Thieves have caused £5,000 of damage and left residents without internet access after cutting through vital cables.
Police in Forest Heath are looking for information after attempted thefts in Cricks Road, West Row and Wamil Road, Mildenhall left users offline on Monday and Tuesday.
In both cases offenders lifted manhole covers and cut through cables.
Anyone with information can police on 101 or Crimestoppers on 0800 555 111.
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