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DNS Server Issues in Guinea-Bissau

5 DNS servers in Guinea-Bissau with detected issues. These servers respond to probes but have problems that may affect usability.

Last updated: · All countries

Servers with issues

5 servers
IP ASN Organization Issue Description Reliability
197.214.83.229
AS37559 ORANGE-BISSAU BAD_RESPONSE Returns unexpected response codes 77%
154.73.60.90
AS327769 MTN-Bissau BAD_RESPONSE Returns unexpected response codes 77%
102.219.175.4
AS327769 MTN-Bissau BAD_RESPONSE Returns unexpected response codes 77%
102.219.175.5
AS327769 MTN-Bissau BAD_RESPONSE Returns unexpected response codes 77%
102.219.175.6
AS327769 MTN-Bissau BAD_RESPONSE Returns unexpected response codes 77%

What do these issues mean?

  • REFUSED — Server is online but refuses queries from outside its network. Likely an ISP resolver that only serves its own subscribers.
  • NX_HIJACK — Server works but redirects non-existent domain lookups to its own IP, typically showing ads instead of an error.
  • SERVFAIL — Server responds but returns internal errors. May be misconfigured or overloaded.
  • NETWORK_ERROR — Connection to the server failed at the network level.
  • NO_ANSWER — Server responds to the query but provides no answer data.
  • CENSORED — Server returns different results for certain domains compared to neutral resolvers.

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