What Causes "Phone Line is Busy" on a windows client
JohnMiller
Newbie ✭
Hello all. New to this discussion board, so I apologize if it takes a few posts to get all the necessary info to you on this question. I have seen this error a few times when someone tries to connect to our SMA6200 using the Connect Tunnel Client: "VPN Connection Failed The phone line is busy." Sometimes a reboot corrects the issue, but it usually takes a WINSOCK reset. Does anyone know what causes this situation?
Thanks - John
Best Answers
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CORRECT ANSWER
shiprasahu93
Moderator
Hello @JohnMiller,
We had seen this in the past and after further investigation had found this to be a Microsoft related problem.
FYI: Microsoft bug ticket# (MS: 11467844)
Thanks!
Shipra Sahu
Technical Support Advisor, Premier Services
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CORRECT ANSWERshiprasahu93
Moderator
Hello @JohnMiller,
I see that it is an internal ticket opened by SonicWall to work with the MSFT team and that is the reason why I do not have a Microsoft link for you.
We have seen this in the past and the response was too slow from the their end due to which it has been eventually closed. It was concluded though that it was not a SonicWall issue.
I would suggest you to open a Support ticket with our SMA team for more details and information regarding the same.
Thanks!
Shipra Sahu
Technical Support Advisor, Premier Services
5
Answers
Hi Shipra,
Thanks for the information. Doing a quick search has not provided a path to this bug ticket. Can you send me a link to it?
Thanks - John
Thanks Shipra! I think I am satisfied now and don't need to open a ticket with support. Have a wonderful day!
I am glad I could help! Have an amazing day ahead! 😀
Shipra Sahu
Technical Support Advisor, Premier Services
SHIPRASAHU93 - Could you share that MS Ticket with me as well - we are experiencing the same issue here.
The MS ticket was an internal ticket between SonicWall and Microsoft which is already closed. I would suggest contacting our support team. If this issue is still ongoing, we can work ahead in resolving this problem.
Thanks!
Shipra Sahu
Technical Support Advisor, Premier Services
Hi @JohnMiller ,
I encountered the same issue on my laptop, fortunately a reboot fixed the issue.
Thanks & Regards,
Poornima.T.R
Folks,
we had a same issue with SMA1000 series.
Here is the Microsoft bug ticket FYI # (MS: 11467844)
Here is the Sonicwall Bug FYI # 182114: Connect Tunnel throws "Phone line Busy" error after frequent connections on Windows 10
This is MS issue...
Vijay Kumar KV
Enterprise Tech Support Consultant | SME
One workaround I've used, rather than re-installing the CT client ,is to remove the "WAN Miniport (PPPOE)" network adapter under Windows Device Manager. Then get Windows to rescan for plug and play devices so the Miniport driver gets re-installed.
@AWB we have this process in a KB article:
The above workround should work fine, we can try with Connect Tunnel with Device Guard (DGCT) and this should work fine w/o that error...
Vijay Kumar KV
Enterprise Tech Support Consultant | SME