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Smart Hub T100 - Local Ony

Smart Hub T100 - Local Ony

Smart Hub T100 - Local Ony
Smart Hub T100 - Local Ony
2025-04-28 04:55:41 - last edited 2025-04-28 05:01:31
Tags: #Device Connectivity
Model: Tapo H100  
Hardware Version: V1
Firmware Version: 1.5.23

Hello

 

I just received a H100 and it is getting the `local only` issue. That prevents me to create any automation


I have multiple tapo and kasa devices which have been working for years. I can acces them remotely and never had an issue. Not sure why h100 is special,
 

I have read many posts here so I have updated it to the latest version, restarted multiple times (router and h100), reset to factory h100, set my router DNS to 8.8.8.8 etc.  

The only way I have been able to make it work is using my phone as a hot spot.

 

I guess the problem is some setting o the router, but h100 should not be so picky to fail when the other devices (like KASA cameras) are accessible without an issue. I can collect tcpdumps from my router if that were necessary 

 

Note, just in case, my router is a linksys running open wrt. I used this to make sure all DNS possible configuration were set up 
 

 

It would be nice the h100 had ssh access and I could check stuff there

 



cc @Wayne-T

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#1
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4 Reply
Re:Smart Hub T100 - Local Ony
2025-04-28 05:06:46

@Wayne-TP 

 

This is tcpdump restult on my router

 



tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes

22:01:34.842592 IP (tos 0x0, ttl 255, id 2866, offset 0, flags [none], proto UDP (17), length 74)

192.168.xxx.xxx.25092 > dns.google.53: [udp sum ok] 12338+ A? security.iot.i.tplinknbu.com. (46)

22:01:34.842592 IP (tos 0x0, ttl 255, id 2866, offset 0, flags [none], proto UDP (17), length 74)

192.168.xxx.xxx.25092 > dns.google.53: [udp sum ok] 12338+ A? security.iot.i.tplinknbu.com. (46)

22:01:34.842826 IP (tos 0x0, ttl 64, id 3517, offset 0, flags [DF], proto UDP (17), length 74)

dns.google.53 > 192.168.xxx.xxx.25092: [bad udp cksum 0x994a -> 0x4335!] 12338 Refused q: A? security.iot.i.tplinknbu.com. 0/0/0 (46)

22:01:34.842836 IP (tos 0x0, ttl 64, id 3517, offset 0, flags [DF], proto UDP (17), length 74)

dns.google.53 > 192.168.xxx.xxx.25092: [udp sum ok] 12338 Refused q: A? security.iot.i.tplinknbu.com. 0/0/0 (46)

22:01:34.850128 IP (tos 0x0, ttl 255, id 2867, offset 0, flags [none], proto UDP (17), length 74)

192.168.xxx.xxx.25092 > dns.google.53: [udp sum ok] 12338+ A? security.iot.i.tplinknbu.com. (46)

22:01:34.850128 IP (tos 0x0, ttl 255, id 2867, offset 0, flags [none], proto UDP (17), length 74)

192.168.xxx.xxx.25092 > dns.google.53: [udp sum ok] 12338+ A? security.iot.i.tplinknbu.com. (46)

22:01:34.850334 IP (tos 0x0, ttl 64, id 3518, offset 0, flags [DF], proto UDP (17), length 74)

dns.google.53 > 192.168.xxx.xxx.25092: [bad udp cksum 0x9546 -> 0x4739!] 12338 Refused q: A? security.iot.i.tplinknbu.com. 0/0/0 (46)

22:01:34.850341 IP (tos 0x0, ttl 64, id 3518, offset 0, flags [DF], proto UDP (17), length 74)

dns.google.53 > 192.168.xxx.xxx.25092: [udp sum ok] 12338 Refused q: A? security.iot.i.tplinknbu.com. 0/0/0 (46)

 

 

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#2
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Re:Smart Hub T100 - Local Ony
2025-04-29 03:10:25

  @uri200 

 

It seems the connection is blocked by the router end, the device itself has no problem as it works fine when connecting to the hotspot. 

 

For your issue, I recommend contacting the local TP-Link support directly and providing specific device information. They can assist in retrieving more detailed and relevant information to help identify the problem.

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#3
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Re:Smart Hub T100 - Local Ony
2025-04-29 18:40:22

  @Wayne-TP thanks!!

Btw, can you highlight for me the line where you see the router is blocking the request? I may dig deeper and maybe fix it myself, and post it here.

Will also contact local support too.

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#4
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Re:Smart Hub T100 - Local Ony
2025-04-29 20:29:11

  @Wayne-TP 

 

Btw i used dig on my openwrt and it seems i am able to get  a response. I also restarted serveral times the H100 and I goot a satisfactory response with tcpdump. So i think there is something more.

Btw, i tried to communicate with support and they just send me an AI generated email with basic stuff



 

dig @192.168.XXX.XXX security.iot.i.tplinknbu.com


; <<>> DiG 9.18.11 <<>> @192.168.XXX.XXX security.iot.i.tplinknbu.com

; (1 server found)

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41676

;; flags: qr rd ra; QUERY: 1, ANSWER: 9, AUTHORITY: 0, ADDITIONAL: 1


;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 512

;; QUESTION SECTION:

;security.iot.i.tplinknbu.com. IN A


;; ANSWER SECTION:

security.iot.i.tplinknbu.com. 287 IN CNAME use1-security.iot.i.tplinknbu.com.

use1-security.iot.i.tplinknbu.com. 47 IN A 3.212.232.94

use1-security.iot.i.tplinknbu.com. 47 IN A 3.221.254.172

use1-security.iot.i.tplinknbu.com. 47 IN A 3.217.202.80

use1-security.iot.i.tplinknbu.com. 47 IN A 3.215.109.60

use1-security.iot.i.tplinknbu.com. 47 IN A 3.225.70.108

use1-security.iot.i.tplinknbu.com. 47 IN A 3.214.101.170

use1-security.iot.i.tplinknbu.com. 47 IN A 34.194.180.60

use1-security.iot.i.tplinknbu.com. 47 IN A 3.226.231.141


;; Query time: 19 msec

;; SERVER: 192.168.XXX.XXX#53(192.168.XXX.XXX) (UDP)

;; WHEN: Tue Apr 29 13:23:12 PDT 2025

;; MSG SIZE rcvd: 213
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#5
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