"At the meeting with the shepherd, specialists from Roscosmos said they were not authorized to accept lawsuits," a spokesman for the local administration said.
Earlier officials said they would back up the claim as the fragment had fallen outside the designated area for rocket debris.
The three-and-a-half-meter (11 foot) long fragment landed a few meters from the shepherd's door in the Altai Republic, southwest Siberia.
The incident occurred after the launch of a Proton-M carrier rocket from the Baikonur space center, leased by Russia from Kazakhstan, on February 5.
The man who was uninjured in the incident said he and his children were extremely frightened and demanded compensation of 500,000 rubles ($21,000). He had earlier asked for double that sum.
The shepherd, Boris Urmatov, has been waiting for over a month to deliver the lawsuit to the Russian space agency specialists personally. Now the man is planning to send the document by post.
Last week the wreckage of a carrier rocket was cut up and removed from the shepherd's land. Specialists from Roscosmos traveled to the farm in the Altai Republic and spoke to the shepherd.
They said the sum the man is seeking is too high. No toxic traces have been found at the site of the fall.
A few years ago another resident of the region sought damage from Roscosmos in similar circumstances. A court awarded him a mere $400 in compensation.
The Altai Republic has been used as a "cemetery" for fallen fragments of carrier rockets launched from the Baikonur space center for more than 40 years. Experts estimate that about 2.5 metric tons of "space waste" have fallen in unpopulated areas of the republic during this period.
