IP2m-841 'Check Version' button does not work

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HikwQedxw
Posts: 12
Joined: Sun Aug 18, 2019 10:34 pm

IP2m-841 'Check Version' button does not work

Post by HikwQedxw »

I have three IP2M-841 cameras:
2x Ver 2 running V2.420.AC00.18.R, Build Date: 2020-10-30
1x Ver 3 running V2.800.0000000.15.R, Build Date: 2021-07-16
All three cameras exhibit the same problem. I am guessing this affects other models as well.

After logging into a camera I go to SETUP/SYSTEM/UPGRADE
On this tab you find four buttons: 'Browse' - 'Upgrade' - 'Download the latest firm...' - 'Check Version'
The first three buttons work as expected, but the check version does nothing.
After a bit of troubleshooting I discovered when you click the button a DNS request is generated for dh.amcrestsecurity.com
This request ends in "DNS 82 Standard query response 0xf100 Server failure A dh.amcrestsecurity.com"
I have included some captured camera traffic below.
That errors means the domain nameserver for amcrestsecurity.com domain is offline or not functioning correctly.
(Could also mean that dh.amcrestsecurity.com is not configured as a DNS server.)
If the domain did not exist you would receive NXDOMAIN or non-existent domain as an error message.
I was not able to find a valid IP address using the following DNS servers:
GooglePublic DNS, Cloudflare, Quad9, Cisco Umbrella(formerly OpenDNS), Comcast, Verizon, Level3, and DNSCHECKER

Does anyone have the correct IP address that dh.amcrestsecurity.com should point to? I'll manually add an entry to my local DNS server.


Thank you.

------------------------------------------------------
Captured traffic from IP2M-841W-V3:

Code: Select all

  146 49.607215240  10.10.10.81 → 3.238.152.164 TLSv1.2 429 Application Data
  147 49.734720800 3.238.152.164 → 10.10.10.81  TCP 66 443 → 41422 [ACK] Seq=2397 Ack=2108 Win=35712 Len=0 TSval=3696591215 TSecr=4294940884
  148 49.739968840  10.10.10.81 → 3.238.152.164 TLSv1.2 542 Application Data, Application Data
  149 49.827644440 3.238.152.164 → 10.10.10.81  TCP 66 443 → 41422 [ACK] Seq=2397 Ack=2584 Win=38272 Len=0 TSval=3696591238 TSecr=4294940897
  150 53.132033080  10.10.10.81 → 10.10.10.1   DNS 82 Standard query 0x2826 A dh.amcrestsecurity.com
  151 53.158274160   10.10.10.1 → 10.10.10.81  DNS 82 Standard query response 0x2826 Server failure A dh.amcrestsecurity.com
  152 54.214488480  10.10.10.81 → 3.238.152.164 TLSv1.2 125 Application Data
  153 54.302178440 3.238.152.164 → 10.10.10.81  TCP 66 443 → 41422 [ACK] Seq=2397 Ack=2643 Win=38272 Len=0 TSval=3696592356 TSecr=4294941345
  154 54.302286160 3.238.152.164 → 10.10.10.81  TLSv1.2 122 Application Data
  155 54.302675760  10.10.10.81 → 3.238.152.164 TCP 66 41422 → 443 [ACK] Seq=2643 Ack=2453 Win=37888 Len=0 TSval=4294941354 TSecr=3696592356
  156 56.641903080  10.10.10.81 → 10.10.10.1   DNS 82 Standard query 0xf100 A dh.amcrestsecurity.com
  157 56.666018480   10.10.10.1 → 10.10.10.81  DNS 82 Standard query response 0xf100 Server failure A dh.amcrestsecurity.com
  158 58.193906840  10.10.10.81 → 10.10.10.1   DNS 82 Standard query 0x2826 A dh.amcrestsecurity.com
  159 58.218128400   10.10.10.1 → 10.10.10.81  DNS 82 Standard query response 0x2826 Server failure A dh.amcrestsecurity.com
  160 60.162052160  10.10.10.81 → 10.10.10.1   DNS 82 Standard query 0x0dc9 A dh.amcrestsecurity.com
  161 60.187576320   10.10.10.1 → 10.10.10.81  DNS 82 Standard query response 0x0dc9 Server failure A dh.amcrestsecurity.com
  162 60.985489760 AmcrestT_24:e4:c3 → Broadcast    ARP 60 ARP Announcement for 10.10.10.81
  163 61.701301920  10.10.10.81 → 10.10.10.1   DNS 82 Standard query 0xf100 A dh.amcrestsecurity.com
  164 61.725635560   10.10.10.1 → 10.10.10.81  DNS 82 Standard query response 0xf100 Server failure A dh.amcrestsecurity.com
  165 61.956624320  10.10.10.81 → 239.255.255.251 UDP 873 37810 → 37810 Len=831
  166 61.957315200  10.10.10.81 → 239.255.255.251 UDP 873 37810 → 37810 Len=831
  167 61.958073720  10.10.10.81 → 239.255.255.251 UDP 873 37810 → 37810 Len=831
  168 61.971428000  10.10.10.81 → 255.255.255.255 UDP 441 5050 → 5050 Len=399
  169 61.972325080  10.10.10.81 → 255.255.255.255 UDP 441 5050 → 5050 Len=399
  170 61.973210320  10.10.10.81 → 255.255.255.255 UDP 441 5050 → 5050 Len=399
  171 61.981034200  10.10.10.81 → 224.0.0.22   IGMPv3 60 Membership Report / Join group 239.255.255.251 for any sources
  172 62.200922240  10.10.10.81 → 224.0.0.22   IGMPv3 60 Membership Report / Join group 239.255.255.251 for any sources
  173 63.670703080  10.10.10.81 → 239.255.255.250 UDP 1313 41315 → 3702 Len=1271
  174 63.672131880  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x8932 A dh.amcrestsecurity.com
  175 63.696270200      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x8932 Server failure A dh.amcrestsecurity.com
  176 63.704512920  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x8932 A dh.amcrestsecurity.com
  177 63.728760120      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x8932 Server failure A dh.amcrestsecurity.com
  178 65.221700600  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x0dc9 A dh.amcrestsecurity.com
  179 65.233830480      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x0dc9 Server failure A dh.amcrestsecurity.com
  180 65.239552920  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x0dc9 A dh.amcrestsecurity.com
  181 65.263679280      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x0dc9 Server failure A dh.amcrestsecurity.com
  182 67.192495080  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x9bc7 A dh.amcrestsecurity.com
  183 67.218138440      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x9bc7 Server failure A dh.amcrestsecurity.com
  184 67.223882960  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x9bc7 A dh.amcrestsecurity.com
  185 67.248428960      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x9bc7 Server failure A dh.amcrestsecurity.com
  186 68.761600960  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x8932 A dh.amcrestsecurity.com
  187 68.785884560      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x8932 Server failure A dh.amcrestsecurity.com
  188 68.792503600  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x8932 A dh.amcrestsecurity.com
  189 68.816896480      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x8932 Server failure A dh.amcrestsecurity.com
  190 70.711675640  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x6259 A dh.amcrestsecurity.com
  191 70.735639120      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x6259 Server failure A dh.amcrestsecurity.com
  192 70.742104560  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x6259 A dh.amcrestsecurity.com
  193 70.766344280      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x6259 Server failure A dh.amcrestsecurity.com
  194 72.281505600  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x9bc7 A dh.amcrestsecurity.com
  195 72.305773520      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x9bc7 Server failure A dh.amcrestsecurity.com
  196 72.312839320  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x9bc7 A dh.amcrestsecurity.com
  197 72.337021320      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x9bc7 Server failure A dh.amcrestsecurity.com
  198 75.817137840  10.10.10.81 → 8.8.8.8      DNS 82 Standard query 0x6259 A dh.amcrestsecurity.com
  199 75.842932160      8.8.8.8 → 10.10.10.81  DNS 82 Standard query response 0x6259 Server failure A dh.amcrestsecurity.com
  200 75.848619040  10.10.10.81 → 8.8.4.4      DNS 82 Standard query 0x6259 A dh.amcrestsecurity.com
  201 75.873121520      8.8.4.4 → 10.10.10.81  DNS 82 Standard query response 0x6259 Server failure A dh.amcrestsecurity.com
  202 83.699429360 AmcrestT_24:e4:c3 → Broadcast    ARP 60 Gratuitous ARP for 10.10.10.81 (Reply)
  203 84.212074360  10.10.10.81 → 3.238.152.164 TLSv1.2 125 Application Data
  204 84.299847440 3.238.152.164 → 10.10.10.81  TLSv1.2 122 Application Data
User avatar
Revo2Maxx
Site Admin
Posts: 5805
Joined: Sat Jun 15, 2019 3:05 pm

Re: IP2m-841 'Check Version' button does not work

Post by Revo2Maxx »

Check Version don't do anything after the 2019 updates and everything past that so 2020, 2021 and so on. (At this time) This feature was mainly used for older camera FW and still have one with 2016 FW on it that when I log into the WebUI I get a message about updating to the 2017 version however for that one I like where it is. I have others that have 2019, 2020 FW however for the 841 normal the 2017 was the most stable FW offered.

So yeah my 2020 FW for my 841 is older then the 10-30 and isn't very stable for my needs. While all of the ones I own didn't have the issue most of them had at least one or more of the current issues. The V3 came with JS fw already installed and it has been a while but if my memory is right the V3 has no older FW then 2019 or 2020..
Here to help the best I can.
Be Safe
HikwQedxw
Posts: 12
Joined: Sun Aug 18, 2019 10:34 pm

Re: IP2m-841 'Check Version' button does not work

Post by HikwQedxw »

'Check Version' button is just window dressing. Awesome...I'll ignore it.

Thank you.
BobTheDroid
Posts: 13
Joined: Sun Nov 06, 2022 5:24 pm

Re: IP2m-841 'Check Version' button does not work

Post by BobTheDroid »

I upgraded the firmware and that button is now gone altogether. https://amcrest.com/firmware
HikwQedxw
Posts: 12
Joined: Sun Aug 18, 2019 10:34 pm

Re: IP2m-841 'Check Version' button does not work

Post by HikwQedxw »

It is now March of 2023 and I still have several IP cameras making DNS queries for dh.amcrestsecurity.com.
I have updated all the devices to the latest firmware that is available for each from https://amcrest.com/firmware.

February my firewall logs contained 500,000+ errors related to dh.amcrestsecurity.com.
I added a local DNS entry for dh.amcrestsecurity.com that redirects those requests to a different server.
FYI - I already tried setting the DNS entry to 127.0.0.1, but that just causes Amcrest devices to crash and reboot each time that request is made.
This easily eliminated a half-million, or more, entries a month from my log server.
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