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Yeastar S20 always auto blacklists my Yealink T29G

Andreas Rost

February 13, 2019 11:02

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I try to register my Yealink T29G to the Yeastar S20. But the phone always tells me "registration failed". Since the S20 is missing a log feature for easy lookup what is happening (and no, I do not want to extract a tarball every 10 seconds), I logged into the asterisk shell. This one tells me: " WARNING[22396]: res_pjsip/pjsip_distributor.c:590 authenticate: the ip 192.168.0.49 is blocked in firewall page to register this account"

Ok, went to Settings->System->Security->Automatic IP Defence. Yes, my IP is there. I deleted it, then I checked the auto defence rules. I changed the rule a bit, doesnt help. I deleted the rule, does not help. I deleted all rules except port 8022, does not help.

Next try, I go to security -> firewall rules. Here, I added 192.168.0.0/255.255.0.0 port 0..65535 to be accecped and moved this rule to the top of the list.

Nothing helps, as soon, as the phone tries to re-register (every 10 minutes, I can't trigger manually) the phone's IP is auto blacklisted.

What is happening there and how can I stop this misbehaviour?

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3 comments

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  Larry Neblett February 13, 2019 11:26

  The credentials you are using must be incorrect. The changes you made to the firewall will not help and in fact are needed. There are 4 elements to a registration - the pbx IP,  username, authID and password. The username and authid are usually the same and are typically the extension number. The password may need to be manually entered rather than cut and pasted as sometime the paste is not accurate and will pick up a space or add spaces to the front. You should also probably factory reset the phone to be safe.

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  Andreas Rost February 13, 2019 11:52

  I finally found out something. I changed the extension numbers to those of out old asterisk / sipgate - 10 to 59 instead of 1000 to 5999 ... ok, now I have another error in the asterisk terminal stating "no matching endpoint found". Some other forum entry says I should reboot the PBX cause some changes won't apply before.

  And still, I do NOT want the S20 to blacklist a phone cause of incorrect registration.

  But thanks, I will reboot now and tell you then if the phone finally connects to the S20

  And yes, copy and paste will lead to misbehaviour. I could not connect to the VoIP-provider before and watching the asterisk terminal showed some spaces which should not be there.

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  Larry Neblett February 13, 2019 16:20

  I am not aware if the blacklist function is able to be disabled. Yeastar support may have a method, but you would need to contact them.