# How to test connection from ACS to CPE **URL:** \ **Category:** Uncategorized\ **Created:** [April 3, 2024, 3:47am UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261 "2024-04-03T03:47:24Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![ariemusbandi](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/ariemusbandi/32/1741_2.png) [@ariemusbandi](https://forum.genieacs.com/u/ariemusbandi)\ **Post date:** [April 3, 2024, 3:47am UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/1 "2024-04-03T03:47:24Z")
My Device last inform status was online but when try to summon get status device offline. ![Screenshot 2024-04-03 at 10.06.30](https://canada1.discourse-cdn.com/flex035/uploads/genieacs/original/2X/e/e9723308f4b68ed0b5f54a0c6d8a6b84ece9acb3.jpeg) ![Screenshot 2024-04-03 at 10.54.25](https://canada1.discourse-cdn.com/flex035/uploads/genieacs/original/2X/2/2b7539b7a5a3d78fa9347521bb019ed7d03798f9.png) ---
**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\ **Post date:** [April 3, 2024, 10:06pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/2 "2024-04-03T22:06:45Z")
One possible cause of this is GenieACS is unable to authenticate to the CPE. Check the genieacs logs to see what might be going on. ---
**Author:** ![ariemusbandi](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/ariemusbandi/32/1741_2.png) [@ariemusbandi](https://forum.genieacs.com/u/ariemusbandi)\ **Post date:** [April 4, 2024, 2:19am UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/3 "2024-04-04T02:19:35Z")
How to see GenieACS Log? ---
**Author:** ![ariemusbandi](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/ariemusbandi/32/1741_2.png) [@ariemusbandi](https://forum.genieacs.com/u/ariemusbandi)\ **Post date:** [April 4, 2024, 2:28am UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/4 "2024-04-04T02:28:20Z")
![Screenshot 2024-04-04 at 09.24.53](https://canada1.discourse-cdn.com/flex035/uploads/genieacs/original/2X/0/05c633b9233bcd8b970866b02c0e28616c0fe425.png) ![Screenshot 2024-04-04 at 09.23.46](https://canada1.discourse-cdn.com/flex035/uploads/genieacs/original/2X/3/3720c42b58a1adad2afeae5caf148c6bfded804b.png) the ConnectionRequestUsername and Password was same, I don’t know what was going on, please help me ---
**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\ **Post date:** [April 4, 2024, 7:20pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/5 "2024-04-04T19:20:36Z")
You are going to need to break out tcpdump/wireshark and see where the packets are going. And look at the log files. Log file information is in the [documentation](https://docs.genieacs.com/en/latest/environment-variables.html). ---
**Author:** ![ariemusbandi](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/ariemusbandi/32/1741_2.png) [@ariemusbandi](https://forum.genieacs.com/u/ariemusbandi)\ **Post date:** [April 5, 2024, 3:28am UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/6 "2024-04-05T03:28:29Z")
This genieacs-debug.yaml ![Screenshot 2024-04-05 at 10.26.48](https://canada1.discourse-cdn.com/flex035/uploads/genieacs/original/2X/8/8e379cb98aa255d7c23a4c6650abe6eaa081febc.jpeg) Please help me ---
**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\ **Post date:** [April 5, 2024, 5:09pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/7 "2024-04-05T17:09:38Z")
Looks like a device issue. You need to break out wireshark/tcpdump and look at the packets to see whats going on. ---
**Author:** ![mike99](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@mike99](https://forum.genieacs.com/u/mike99)\ **Post date:** [April 8, 2024, 3:13pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/8 "2024-04-08T15:13:20Z")
172.31.88.254 is a private IP address. Is the device behind NAT ? If so, you will need XMPP or STUN to initiate a connection from the server. ---
**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\ **Post date:** [April 8, 2024, 4:09pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/9 "2024-04-08T16:09:06Z")
It depends entirely on how the CPE is configured. **All** of our CPEs have two interfaces. Public internet, and private management. I can assure you with 100% certainty we do not use XMPP or STUN. ---
**Author:** ![mike99](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@mike99](https://forum.genieacs.com/u/mike99)\ **Post date:** [April 17, 2024, 11:10am UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/10 "2024-04-17T11:10:26Z")
I understand. I do the same since it’s security best practice to separate management and internet into two different WANs and keep the management private. But that not everybody that do it, even less beginner. But, what the OP describe seems like a NAT issue (CPE to server work fine but connection initiated by server fail) and the debug output show a private IP address. That why I asked if behind NAT. ---
**Author:** ![manibo95](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@manibo95](https://forum.genieacs.com/u/manibo95)\ **Post date:** [January 24, 2025, 7:09pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/11 "2025-01-24T19:09:42Z")
can you help me to my ACS problem starting session, events: [1 BOOT, 0 BOOTSTRAP,] retry-count: 4 ---
**Author:** ![akcoder](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.genieacs.com/akcoder/32/11_2.png) [@akcoder](https://forum.genieacs.com/u/akcoder)\ **Post date:** [January 24, 2025, 7:40pm UTC](https://forum.genieacs.com/t/how-to-test-connection-from-acs-to-cpe/5261/12 "2025-01-24T19:40:02Z")
Please create a new thread instead of resurrecting a nearly 1 year old thread.