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A_John_Smith
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EE88.70 - Connection failed - Netotiation with site failed

Hi, I use a Quantum Spark 1800 Appliance and remote access our company network via Endpoint Security client. I've been using that  for quite a long time but I found that I cannot connect since days ago. It jammed at 47% and then displayed Connection failed - Netotiation with site failed.

 

my laptop OS is Windows 11 pro 21H2. I uninstalled the old version of the endpoint (it should be a 2023 version) and replaced it with a newer EE88.70. Somehow, the problem still remains.

 

I also checked my remote access uer account, and reset the password, but it doesn't work.

 

Any advices will be aprreciated,

 

Thanks,

Fu

 

屏幕截图 2025-06-19 094653.png

屏幕截图 2025-06-19 095450.png

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A_John_Smith
Participant

Whoops ... I found probably it's UDP 4500 was forwarded to another server for another VPN client. I deleted this NAT and the endpoint security has been back to normal ....😅

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6 Replies
PhoneBoy
Admin
Admin

If you can upload the client logs, we might be able to see what's wrong.
Redact any sensitive details, of course.

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A_John_Smith
Participant

Hi Admin, 

Thank you for the reply. Can you please guide me how to find the appropriate log?

All the best,

Fu

 

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A_John_Smith
Participant

Whoops ... I found probably it's UDP 4500 was forwarded to another server for another VPN client. I deleted this NAT and the endpoint security has been back to normal ....😅

the_rock
Legend
Legend

It happens...glad it works now!

Andy

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the_rock
Legend
Legend

Is it locally or centrally managed? Is everybody facing the same problem?

Andy

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A_John_Smith
Participant

Thank you Andy, It's locally.

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