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Archer C80 losing internet connection several times a day

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Archer C80 losing internet connection several times a day

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Archer C80 losing internet connection several times a day
Archer C80 losing internet connection several times a day
2021-07-24 05:45:45 - last edited 2021-08-26 07:27:27
Model: Archer C80  
Hardware Version: V1
Firmware Version: 1.5.7 Build 210308 Rel.60033n(5553)

Hi!

I've had an Archer C80 router for almost three months now. Over a month ago, I started to notice that once a day, the internet connection dropped for about 10-15 seconds and then it came back. But recently (two or three weeks), it got pretty bad, with my connection dropping at least 10 times a day, which is very annoying since I'm on a lot of work calls and then at night I usually play online, so it kicks me from the game every time the internet drops. When the internet drops, the wifi or ethernet connection never shows up as disconnected in any of the devices I have at home, it just won't open any websites or if I'm watching any live streams it freezes. The Internet LED indicator in the router turns to orange when there's an internet drop. At first I thought it was an issue with my ISP, because when I entered the router's configuration it showed no IP during those 10-15 seconds, and then it came back. My ISP's modem/router is configured in bridge mode, and I connect the C80 to the internet with a Cat 5e ethernet cable straight from the modem, nothing else comes out of the modem. 

In order to troubleshoot, I took that cable and I connected my desktop PC to the internet straight from my ISP's modem for two days straight and I had no internet drops (I used an internet connection monitoring tool), so I'm sure there's something wrong with the router and I don't know what it is, I've tried resetting the router, restoring it to factory settings, changing the DNS servers to Google's, and nothing seems to solve the issue. The internet drops happen in all the devices.

 

These are the devices that feed from the router, the C80 is configured in router mode with the DHCP Server activated, NAT Boost (therefore no QoS) and both 2.4 and 5GHz Wi-Fi networks activated.

1 Desktop PC (Gigabit Ethernet), this is the device with DMZ and also with an address reservation.

1 iPad Pro (WiFi 2.4Ghz)

2 iPhones (WiFi 5GHz)

1 PS5 (Gigabit Ethernet)

1 MacBook Pro (WiFi 5Ghz)

1 MacBook Air (WiFi 5GHz)

2 Smart TVs (WiFi 5GHz)

 

Any help is very appreciated,

Thanks!

 

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#1
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1 Accepted Solution
Re:Archer C80 losing internet connection several times a day-Solution
2021-08-26 07:27:19 - last edited 2021-08-26 07:27:27

Hello @nicolasdeppe, we are happy to tell you that there is a new firmware for the Archer C80(US) V1, you can try to install it on your C80, then check the connectivity.

 

You can refer to this thread for more details:

[New Firmware] Archer C80(US)_V1_210716

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#8
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Re:Archer C80 losing internet connection several times a day
2021-07-27 12:25:36 - last edited 2021-07-27 13:03:24

@nicolasdeppe 

 

Please confirm the below information:

1. Who is your ISP? What's the model of the modem?

2. What is the WAN connection type on the TP-Link router?

3. Save and email the System Log on the router (System Tools > System Log). Don't reboot the router, wait for the internet coming back automatically after the disconnect.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#2
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Re:Archer C80 losing internet connection several times a day
2021-07-27 13:03:08 - last edited 2021-07-27 13:07:09

 

Kevin_Z wrote

@nicolasdeppe 

 

Please confirm the below information:

1. Who is your ISP? What's the model of the modem?

2. What is the WAN connection type on the TP-Link router?

3. Save and email the System Log on the router (System Tools > System Log). Don't reboot the router, wait for the internet coming back automatically after the disconnect.

 

Hi!

 

My response to your questions:

 

1. My ISP is GTD, a Chilean FTTH provider. The modem is a Fiberhome AN5506 currently in bridge mode, and the only connection out of that modem is the C80's.

2. WAN connection type is Dynamic IP.

3. You can see the syslog here with info from the last three days when I reconnected the C80: https://products.groupdocs.app/viewer/view?file=88b839c1-c7a4-45b4-8f6b-5a856f4a653e/syslog.txt

 

Thanks for your help!

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#3
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Re:Archer C80 losing internet connection several times a day
2021-07-29 01:52:46

@Kevin_Z this is the most recent system log, see anything that could cause the problem?

 

1 INFO 0days, 03:29:44, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

2 INFO 0days, 03:34:21, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

3 INFO 0days, 03:38:56, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

4 INFO 0days, 03:43:19, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

5 INFO 0days, 03:43:38, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

6 INFO 0days, 03:43:47, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

7 INFO 0days, 03:43:52, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

8 INFO 0days, 03:43:54, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

9 INFO 0days, 03:43:55, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

10 INFO 0days, 03:43:56, [dnsproxy]Register Dns Detect

11 ERROR 0days, 03:43:56, [dnsproxy]register dns server detect error

12 INFO 0days, 03:43:56, [wan]advanced ddns -wanChanged

13 INFO 0days, 03:43:56, [dhcpc]Lease lost, entering init state

14 INFO 0days, 03:43:56, [dnsproxy]Register primary = 0x0, secondary = 0x0

15 INFO 0days, 03:43:57, [dhcpc]Send DISCOVER with unicast flag 1

16 INFO 0days, 03:43:58, [dhcpc]Recv OFFER from server 201.238.238.26 with ip 200.119.230.107

17 INFO 0days, 03:43:58, [dhcpc]Send REQUEST to server 201.238.238.26 with request ip 200.119.230.107

18 INFO 0days, 03:43:59, [dhcpc]eth0 set ip 200.119.230.107 mask 255.255.255.0 gateway 200.119.230.1

19 INFO 0days, 03:43:59, [wan]advanced ddns -wanChanged

20 INFO 0days, 03:43:59, [wan]systool sntpc -sntpRequest

21 INFO 0days, 03:43:59, [dnsproxy]Register Dns Detect

22 INFO 0days, 03:43:59, [dnsproxy]Register primary = 0x4004bc8, secondary = 0x5004bc8

23 INFO 0days, 03:48:21, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

24 INFO 0days, 03:48:59, [diag]Ping progress is now running with id=1024.

25 INFO 0days, 03:49:02, [diag]Stop diagnose ping progress .......

26 INFO 0days, 03:49:02, [diag]Free context force.

27 INFO 0days, 03:49:24, [diag]Ping progress is now running with id=1025.

28 INFO 0days, 03:49:28, [diag]Stop diagnose ping progress .......

29 INFO 0days, 03:49:28, [diag]Free context force.

30 INFO 0days, 03:52:44, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

31 INFO 0days, 03:57:07, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

32 INFO 0days, 03:58:17, [dhcpc]interface bring down

33 INFO 0days, 03:58:17, [dnsproxy]Register Dns Detect

34 ERROR 0days, 03:58:17, [dnsproxy]register dns server detect error

35 INFO 0days, 03:58:17, [dnsproxy]Register primary = 0x0, secondary = 0x0

36 INFO 0days, 03:58:17, [wan]advanced ddns -wanChanged

37 INFO 0days, 03:58:18, [dhcpc]Send DISCOVER with unicast flag 0

38 INFO 0days, 03:58:20, [dhcpc]Send DISCOVER with unicast flag 0

39 INFO 0days, 03:58:22, [dhcpc]Send DISCOVER with unicast flag 0

40 INFO 0days, 03:58:24, [dhcpc]Recv OFFER from server 201.238.238.26 with ip 200.119.230.107

41 INFO 0days, 03:58:24, [dhcpc]Send REQUEST to server 201.238.238.26 with request ip 200.119.230.107

42 INFO 0days, 03:58:26, [dhcpc]Send REQUEST to server 201.238.238.26

43 INFO 0days, 03:58:28, [dhcpc]Send REQUEST to server 201.238.238.26

44 INFO 0days, 03:58:30, [dhcpc]Send REQUEST to server 201.238.238.26

45 INFO 0days, 03:58:32, [dhcpc]Send REQUEST to server 201.238.238.26

46 INFO 0days, 03:58:34, [dhcpc]eth0 set ip 200.119.230.107 mask 255.255.255.0 gateway 200.119.230.1

47 INFO 0days, 03:58:34, [wan]advanced ddns -wanChanged

48 INFO 0days, 03:58:34, [wan]systool sntpc -sntpRequest

49 INFO 0days, 03:58:34, [dnsproxy]Register Dns Detect

50 INFO 0days, 03:58:34, [dnsproxy]Register primary = 0x8080808, secondary = 0x4040808

51 INFO 0days, 04:02:56, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

52 INFO 0days, 04:07:19, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

53 INFO 0days, 04:11:46, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

54 INFO 0days, 04:16:09, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

55 INFO 0days, 04:20:32, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

56 INFO 0days, 04:24:56, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

57 INFO 0days, 04:29:24, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

58 INFO 0days, 04:33:51, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

59 INFO 0days, 04:38:14, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

60 INFO 0days, 04:42:39, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

61 INFO 0days, 04:47:18, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

62 INFO 0days, 04:51:42, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

63 INFO 0days, 04:56:08, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

64 INFO 0days, 05:00:31, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

65 INFO 0days, 05:04:55, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

66 INFO 0days, 05:09:18, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

67 INFO 0days, 05:09:37, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

68 INFO 0days, 05:14:03, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

69 INFO 0days, 05:18:26, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

70 INFO 0days, 05:22:49, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

71 INFO 0days, 05:27:18, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

72 INFO 0days, 05:31:43, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

73 INFO 0days, 05:36:07, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

74 INFO 0days, 05:40:30, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

75 INFO 0days, 05:44:54, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

76 INFO 0days, 05:49:18, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

77 INFO 0days, 05:53:44, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

78 INFO 0days, 05:58:06, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

79 INFO 0days, 06:02:43, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

80 INFO 0days, 06:07:06, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

81 INFO 0days, 06:11:31, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

82 INFO 0days, 06:15:54, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

83 INFO 0days, 06:20:18, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

84 INFO 0days, 06:24:48, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

85 INFO 0days, 06:29:17, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

86 INFO 0days, 06:33:57, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

87 INFO 0days, 06:38:19, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

88 INFO 0days, 06:42:43, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

89 INFO 0days, 06:47:24, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

90 INFO 0days, 06:51:47, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

91 INFO 0days, 06:56:10, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

92 INFO 0days, 07:00:33, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

93 INFO 0days, 07:04:55, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

94 INFO 0days, 07:09:18, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

95 INFO 0days, 07:13:44, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

96 INFO 0days, 07:18:07, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

97 INFO 0days, 07:22:30, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

98 INFO 0days, 07:26:54, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

99 INFO 0days, 07:31:17, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

100 INFO 0days, 07:35:40, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

101 INFO 0days, 07:40:07, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

102 INFO 0days, 07:44:34, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

103 INFO 0days, 07:48:57, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

104 INFO 0days, 07:53:19, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

105 INFO 0days, 07:57:43, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

106 INFO 0days, 07:58:02, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

107 INFO 0days, 08:02:33, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

108 INFO 0days, 08:07:02, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

109 INFO 0days, 08:11:25, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

110 INFO 0days, 08:15:47, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

111 INFO 0days, 08:20:10, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

112 INFO 0days, 08:24:33, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

113 INFO 0days, 08:28:55, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

114 INFO 0days, 08:33:25, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

115 INFO 0days, 08:37:48, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

116 INFO 0days, 08:42:13, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

117 INFO 0days, 08:46:36, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

118 INFO 0days, 08:51:01, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

119 INFO 0days, 08:55:24, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

120 INFO 0days, 08:59:47, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

121 INFO 0days, 09:04:17, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

122 INFO 0days, 09:08:54, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

123 INFO 0days, 09:13:17, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

124 INFO 0days, 09:13:36, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

125 INFO 0days, 09:13:45, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

126 INFO 0days, 09:13:50, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

127 INFO 0days, 09:13:52, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

128 INFO 0days, 09:13:53, [dhcpc]broadcast REQUEST with request ip 200.119.230.107

129 INFO 0days, 09:13:54, [dnsproxy]Register Dns Detect

130 ERROR 0days, 09:13:54, [dnsproxy]register dns server detect error

131 INFO 0days, 09:13:54, [wan]advanced ddns -wanChanged

132 INFO 0days, 09:13:54, [dhcpc]Lease lost, entering init state

133 INFO 0days, 09:13:54, [dnsproxy]Register primary = 0x0, secondary = 0x0

134 INFO 0days, 09:13:55, [dhcpc]Send DISCOVER with unicast flag 0

135 INFO 0days, 09:13:57, [dhcpc]Send DISCOVER with unicast flag 0

136 INFO 0days, 09:13:59, [dhcpc]Send DISCOVER with unicast flag 0

137 INFO 0days, 09:13:59, [dhcpc]ignoring XID 805667f4 (our xid is a666ff37)

138 INFO 0days, 09:14:02, [dhcpc]Recv OFFER from server 201.238.238.26 with ip 200.119.230.107

139 INFO 0days, 09:14:02, [dhcpc]Send REQUEST to server 201.238.238.26 with request ip 200.119.230.107

140 INFO 0days, 09:14:03, [dhcpc]eth0 set ip 200.119.230.107 mask 255.255.255.0 gateway 200.119.230.1

141 INFO 0days, 09:14:03, [wan]advanced ddns -wanChanged

142 INFO 0days, 09:14:03, [wan]systool sntpc -sntpRequest

143 INFO 0days, 09:14:03, [dnsproxy]Register Dns Detect

144 INFO 0days, 09:14:03, [dnsproxy]Register primary = 0x8080808, secondary = 0x4040808

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#4
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Re:Archer C80 losing internet connection several times a day
2021-07-29 05:57:20

@nicolasdeppe 

 

Thanks for the system log.

 

Try to enable Get IP Unicast DHCP on the router. Under the Advanced tab, choose Network > Internet > Get IP Unicast DHCP, then save and reboot the router:

If the above doesn't help, try to Clone the MAC address of the PC as follows, which has a stable connection when connecting to the modem directly:

https://www.tp-link.com/support/faq/2264/

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#5
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Re:Archer C80 losing internet connection several times a day
2021-07-29 14:44:21

@Kevin_Z I tried both things, but the drops keep happening :(

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#7
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Re:Archer C80 losing internet connection several times a day-Solution
2021-08-26 07:27:19 - last edited 2021-08-26 07:27:27

Hello @nicolasdeppe, we are happy to tell you that there is a new firmware for the Archer C80(US) V1, you can try to install it on your C80, then check the connectivity.

 

You can refer to this thread for more details:

[New Firmware] Archer C80(US)_V1_210716

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
Recommended Solution
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#8
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