networking Errors

100 entries

Error Code Domain Category Fix Rate Confidence Tier
Address already in use (EADDRINUSE) EADDRINUSE networking tcp_connection 93% 92% ai_generated
arp: duplicate address detected for 192.168.1.x — networking layer2 88% 90% ai_generated
BGP Notification: Hold Timer Expired (code 4, subcode 0) — networking routing 82% 85% ai_generated
SSL: error:0A000086:SSL routines::certificate verify failed (unable to get local issuer certificate) — networking tls_certificate 93% 92% ai_generated
Connection refused (ECONNREFUSED) ECONNREFUSED networking tcp_connection 92% 91% ai_generated
Connection reset by peer (ECONNRESET) ECONNRESET networking tcp_connection 80% 82% ai_generated
Connection timed out (ETIMEDOUT) ETIMEDOUT networking tcp_connection 82% 85% ai_generated
CORS preflight request failed — networking http 91% 90% ai_generated
DHCPNAK: lease expired, no address assigned — networking dhcp 90% 88% ai_generated
NXDOMAIN: Host example.invalid not found: 3(NXDOMAIN) — networking dns 90% 92% ai_generated
DNS resolution failed: NXDOMAIN — networking dns 88% 90% ai_generated
DNS SERVFAIL: server failure processing query ERVFAIL networking dns 82% 84% ai_generated
DNS query timeout: no response received — networking dns 85% 86% ai_generated
DNS response truncated (TC bit set), retrying over TCP failed — networking dns 85% 87% ai_generated
Connection timed out: no route to host (firewall DROP) — networking firewall 88% 90% ai_generated
TCP RST received immediately after SYN-ACK: connection reset by firewall — networking firewall 55% 72% ai_generated
ICMP: Fragmentation Needed and Don't Fragment was Set (mtu 1400) — networking mtu_pmtud 88% 90% ai_generated
rpc error: code = DeadlineExceeded desc = context deadline exceeded — networking grpc 85% 88% ai_generated
No route to host (EHOSTUNREACH) EHOSTUNREACH networking tcp_connection 83% 85% ai_generated
Strict-Transport-Security header missing or misconfigured / HSTS preload requirements not met — networking ssl_tls 88% 89% ai_generated
HTTP/1.1 408 Request Timeout — networking http 87% 88% ai_generated
HTTP/1.1 413 Payload Too Large — networking http 92% 93% ai_generated
HTTP/1.1 429 Too Many Requests — networking http 90% 92% ai_generated
HTTP 502 Bad Gateway — networking http 85% 87% ai_generated
HTTP 503 Service Unavailable — networking http 87% 88% ai_generated
HTTP 504 Gateway Timeout — networking http 83% 85% ai_generated
Destination unreachable: Host unreachable (ICMP type 3, code 1) — networking icmp 85% 88% ai_generated
connect: Network is unreachable (IPv6 address fe80::1, ENETUNREACH) ENETUNREACH networking ipv6 83% 85% ai_generated
Mixed Content: The page was loaded over HTTPS, but requested an insecure resource — networking ssl_tls 91% 92% ai_generated
mTLS handshake failed: certificate verify failed (no client certificate) — networking ssl_tls 85% 84% ai_generated
Message too long (EMSGSIZE): packet size 1500 exceeds interface MTU 1400 EMSGSIZE networking mtu_pmtud 90% 91% ai_generated
NAT traversal failed: no response from STUN server, symmetric NAT detected — networking nat 72% 80% ai_generated
HTTP 407 Proxy Authentication Required — networking http 89% 88% ai_generated
QUIC handshake failed: TLS alert handshake_failure; connection refused on UDP 443 — networking quic 85% 87% ai_generated
SSL: certificate has expired — networking ssl_tls 95% 93% ai_generated
SSL: hostname mismatch - certificate CN does not match — networking ssl_tls 91% 89% ai_generated
SSL: handshake failure / protocol error — networking ssl_tls 85% 84% ai_generated
SSL: self signed certificate — networking ssl_tls 92% 90% ai_generated
SSL: certificate verify failed - unable to get local issuer certificate — networking ssl_tls 90% 88% ai_generated
TCP window full: receiver window size 0, zero window probe sent — networking tcp_flow_control 82% 85% ai_generated
SSL: unsupported protocol / TLS version not supported — networking ssl_tls 87% 86% ai_generated
ERR_TOO_MANY_REDIRECTS ERR_TOO_MANY_REDIRECTS networking http 90% 89% ai_generated
WebSocket connection failed: Error during WebSocket handshake: Unexpected response code: 400 — networking websocket 90% 91% ai_generated
Security warning: X-Forwarded-For header contains untrusted client-supplied value — networking http_security 88% 90% ai_generated
TCP: request_sock_TCP: Possible SYN flooding on port 8080. Sending cookies. — networking network_error 85% 85% ai_generated
ICMP redirect received from 10.0.0.1 for destination 192.168.1.100 — networking network_error 85% 82% ai_generated
DHCPREQUEST timed out on interface eth0, waiting for DHCPOFFER — networking network_error 80% 83% ai_generated
ARP: no ARP reply received for 192.168.1.50 on eth0 — networking network_error 80% 84% ai_generated
UDP: bad checksum from 10.0.0.2:12345 to 10.0.0.1:53 — networking network_error 75% 81% ai_generated
NDP: Neighbor Solicitation for fe80::1 on eth0 failed, no reply — networking network_error 80% 82% ai_generated
IP fragment reassembly timeout: packet dropped (fragmentation timeout exceeded) ETIMEDOUT networking network_error 75% 85% ai_generated
MAC address flapping detected: 00:1a:2b:3c:4d:5e between ports Gi0/1 and Gi0/2 — networking network_error 85% 88% ai_generated
OSPF: Neighbor 10.0.0.2 stuck in EXSTART state — networking network_error 80% 87% ai_generated
TFTP: timeout waiting for data packet from 192.168.1.100:69 ETIMEDOUT networking network_error 78% 82% ai_generated
SSL: error:0A000126:SSL routines::unexpected eof while reading — networking network_error 82% 86% ai_generated
DHCP: No DHCPOFFER received from server 0.0.0.0 — networking network_error 80% 84% ai_generated
TCP: SACK has been disabled due to excessive retransmissions on 10.0.0.1:443 — networking network_error 78% 85% ai_generated
PPPoE: LCP echo timeout, no response from peer 192.168.100.1 — networking protocol_error 72% 82% ai_generated
mDNS: Response from 192.168.1.50:5353 does not match query for _http._tcp.local, ignoring — networking protocol_error 75% 80% ai_generated
IPsec: IKE SA authentication failed with peer 203.0.113.5, pre-shared key mismatch — networking auth_error 92% 88% ai_generated
eth0: jumbo frame dropped, MTU 1500 but frame size 9000 received from 00:1a:2b:3c:4d:5e — networking network_error 88% 83% ai_generated
DHCPv6: Rapid Commit option received but server 2001:db8::1 returned no IA_NA addresses — networking protocol_error 76% 81% ai_generated
TCP: challenge ACK storm detected on port 443 from 10.0.0.2 — networking protocol_error 80% 85% ai_generated
IPv6: Duplicate Address Detection failed for fe80::1 on eth0, address conflict detected — networking protocol_error 80% 85% ai_generated
DNS: Cache poisoning detected, response from 192.0.2.1 for example.com does not match expected source — networking security_error 85% 85% ai_generated
VXLAN: VNI mismatch on tunnel vxlan0, expected 100, received 200 from 10.0.0.2 — networking protocol_error 85% 85% ai_generated
UDP: socket receive buffer overflow on port 12345, 5000 packets dropped — networking resource_error 80% 85% ai_generated
HTTP/2: GOAWAY frame received from server with error code NO_ERROR, but connection closed before graceful shutdown completed — networking protocol_error 80% 85% ai_generated
TCP: tcp_retransmit_timer: jiffies=12345678, rto=300, retransmits=3, skb lost due to peer not receiving timestamps — networking network_error 82% 85% ai_generated
DHCP: Option 82 (relay agent information) missing from DHCPDISCOVER, server ignoring request — networking protocol_error 90% 88% ai_generated
DNS: CNAME resolution loop detected for www.example.com (max depth 16 exceeded) — networking protocol_error 95% 90% ai_generated
IPv6: Duplicate Address Detection (DAD) failed for fe80::1/64 on eth0, address in use by 00:1a:2b:3c:4d:5e — networking layer2 85% 87% ai_generated
OSPF: LSDB overload detected, max LSA limit (10000) reached on area 0.0.0.0, dropping new LSAs — networking routing 88% 86% ai_generated
IGMP: Report suppression detected on VLAN 100, multicast group 239.1.1.1 — networking protocol_error 78% 85% ai_generated
DHCP: IP address 192.168.1.50 conflict detected with MAC 00:11:22:33:44:55 — networking network_error 82% 88% ai_generated
IPsec: SA expired for tunnel 10.0.0.1 to 203.0.113.5, rekeying failed — networking protocol_error 80% 86% ai_generated
OSPF: LSA age 3600 seconds reached for 10.0.0.0/24, router 192.168.1.1, flushing — networking routing 76% 84% ai_generated
TCP: Out-of-order packet received on connection 10.0.0.1:443 -> 192.168.1.50:54321, expected seq 12345, got 12390 — networking network_error 72% 82% ai_generated
NDP: Duplicate address detected for fe80::1 on eth0, DAD failed — networking layer2 81% 87% ai_generated
TCP Zero Window Probe Failure: no response from receiver after 3 probes ETIMEDOUT networking protocol_error 78% 85% ai_generated
DHCP DECLINE: address 192.168.1.100 already in use on the network — networking network_error 88% 88% ai_generated
IPsec: PFS group mismatch in Quick Mode, proposal rejected by peer 203.0.113.5 — networking config_error 88% 87% ai_generated
MLDv2: no multicast listener report received for group ff02::1:ff00:1234 on eth0 — networking protocol_error 82% 84% ai_generated
PPPoE: PADI timeout, no Access Concentrator responded on interface eth0 — networking network_error 80% 86% ai_generated
VRRP: Preempt delay expired, transitioning to MASTER state on interface eth0 — networking runtime_error 85% 83% ai_generated
ICMP: Frag needed but DF set for packet size 1500 on vlan100 EMSGSIZE networking network_error 80% 85% ai_generated
IPsec: Dead Peer Detection (DPD) timeout for peer 203.0.113.10, deleting SA — networking protocol_error 80% 88% ai_generated
DHCP: Address conflict detected for 192.168.1.100, disabling interface eth0 — networking network_error 85% 85% ai_generated
ICMP: Port unreachable from 10.0.0.2:53 to 10.0.0.1:54321 — networking protocol_error 85% 85% ai_generated
OSPF: Neighbor 10.0.0.3 stuck in INIT state on interface GigabitEthernet0/1 — networking routing 85% 88% ai_generated
ethtool: Link detected: no (autonegotiation failed) on eth0 — networking system_error 75% 85% ai_generated
IPv6: Path MTU Discovery failed for destination 2001:db8::1, packet size 1280 — networking protocol_error 85% 82% ai_generated
IGMP: Membership query timeout on interface eth0, group 239.0.0.1 — networking protocol_error 85% 83% ai_generated
DHCP: No free leases in pool 192.168.1.0/24, server 10.0.0.1 — networking resource_error 90% 88% ai_generated
TCP: SYN cookies enabled due to high connection rate on port 443, dropping connections — networking network_error 85% 86% ai_generated
NTP: Server 203.0.113.1 stratum 16, too high to synchronize — networking protocol_error 85% 84% ai_generated
IGMP: report suppression on port Gi0/1, ignoring membership report for 239.0.0.1 — networking protocol_error 78% 83% ai_generated
DNS: possible cache poisoning attack detected: response from 192.0.2.1#53 with TXID mismatch (expected 0x1234, got 0x5678) — networking security_error 82% 87% ai_generated
Ethernet: jumbo frame size 9600 bytes exceeds interface MTU 1500 on eth0, packet dropped — networking network_error 76% 82% ai_generated
NDP: Duplicate Address Detection failed for fe80::1 on eth0, address already in use by 00:1a:2b:3c:4d:5e — networking layer2 79% 86% ai_generated