# It says "Checking for radio firmware library updates has encountered a problem..." How to resolve this problem?

**URL:** <https://forums.digi.com/t/it-says-checking-for-radio-firmware-library-updates-has-encountered-a-problem-how-to-resolve-this-problem/17839>\
**Category:** XBee & XBee Gateway\
**Tags:** xctu-ver-6-3-4\
**Created:** [December 29, 2016, 10:13am UTC](https://forums.digi.com/t/it-says-checking-for-radio-firmware-library-updates-has-encountered-a-problem-how-to-resolve-this-problem/17839 "2016-12-29T10:13:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![printetjenan](https://avatars.discourse-cdn.com/v4/letter/p/59ef9b/32.png) [@printetjenan](https://forums.digi.com/u/printetjenan)\
**Post date:** [December 29, 2016, 10:13am UTC](https://forums.digi.com/t/it-says-checking-for-radio-firmware-library-updates-has-encountered-a-problem-how-to-resolve-this-problem/17839/1 "2016-12-29T10:13:04Z")

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Error pop out after running the application XCTU Version 6.3.4. It says “Checking for radio firmware library updates has encountered a problem. Error while downloading firmware library. The server name could not be resolve.” I’m working with XB24CZ7WIT-004 XBee Module. How to resolve this problem?

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**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [December 29, 2016, 10:15am UTC](https://forums.digi.com/t/it-says-checking-for-radio-firmware-library-updates-has-encountered-a-problem-how-to-resolve-this-problem/17839/2 "2016-12-29T10:15:59Z")

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Close out of any firewalls or anti viruses you are running. If this is on a company connection, talk to your IT.