President Volodymyr Zelenskyy said Ukraine is investigating renewed restrictions affecting SpaceX’s Starshield service, after Ukrainian forces recorded significant disruptions across the country. Similar speed limits were temporarily imposed last month before operations returned to their previous speeds.

“Our units have been recording significant disruptions to Starshield’s operations over the territory of Ukraine for several days now – along the entire front line and in the temporarily occupied territories of Ukraine,” Zelenskyy wrote on X early Thursday.

Starshield is SpaceX’s satellite network developed for government and national security use, using technology from the company’s Starlink system. CNBC contacted SpaceX and the White House for comment about the latest reported restrictions.

Zelenskyy said the Ukrainian military had investigated the disruptions and determined that “these are not random errors but systematic speed restrictions.” He added that Ukrainian officials were working with the U.S. to establish the circumstances surrounding the restrictions.

According to Zelenskyy, the restrictions effectively limit terminals traveling above 161 kilometers per hour, or 100 miles per hour. Terminals moving faster are disconnected, creating problems for Ukrainian efforts to intercept Russian drones powered by jets.

“There have already been strikes that got through because our interception systems cannot reach sufficient speeds and are unable to intercept in time,” Zelenskyy said. His comments linked the reported Starshield restrictions directly to Ukraine’s difficulties countering those drones.

Ukrainian officials raised similar accusations against SpaceX on Oct. 14, arguing that reduced connectivity speeds were disrupting military operations and weakening the country’s defensive capabilities. On October 24, Zelenskyy confirmed that the systems had returned to their previous operating speeds.

The Wall Street Journal reported that SpaceX CEO Elon Musk ordered those earlier restrictions, leaving some Ukrainian interceptor and strike drones virtually unusable. The newspaper later reported that President Donald Trump asked Musk to reverse the restrictions, while Trump denied that the White House had ordered Starlink restrictions in Ukraine.

Musk initially appeared to place responsibility for any restrictions on the U.S. government. He wrote on X that “Starshield systems are owned and controlled by the US government.”

Musk later said Ukraine had violated Starlink’s terms of service, prompting the company to restrict Ukrainian access to satellite technology operating at high speeds. Ukrainian officials strongly contested that claim.

Serhii Beskrestnov, a defense tech advisor to Zelenskyy, previously said Ukraine could not use commercial Starlink for drone strikes at medium range or long range. He said the service does not operate over Russian territory and had imposed drone speed limits of 70 to 90 kilometers per hour for months.

Beskrestnov confirmed Thursday that “the speed of Starlink operation during movement was again limited.” His statement echoed Zelenskyy’s warning that the latest disruption was systematic rather than a collection of random technical failures.

“We did not rejoice for long,” Beskrestnov said. He added that “any terms can be changed and discussed, instead of leaving our country without sky protection.”

The Starshield complaints emerged as peace talks brokered by the U.S. concluded Wednesday in Abu Dhabi. U.S. special envoys Steve Witkoff and Jared Kushner then arrived in Moscow for additional talks with Russian President Vladimir Putin.

Russian presidential envoy Kirill Dmitriev met Witkoff and Kushner when they arrived Thursday morning at Vnukovo Airport, according to Russian state news agency Tass. The envoys were expected to discuss a lasting resolution to Russia’s invasion of Ukraine, which has continued for more than four and a half years.

Witkoff and Kushner were also poised to meet Zelenskyy later Thursday on the sidelines of a political summit in Ireland. Their planned meeting followed negotiations in the United Arab Emirates among Ukrainian, Russian and American representatives.

Those trilateral talks ended earlier in the week without a major diplomatic breakthrough on either a ceasefire or a territorial settlement. Against that backdrop, Ukraine is again pressing the American side for answers about restrictions affecting the satellite service used by its military.