NX Cloud access is not working in my office and some of the locations in China

Answered

May 22, 2020 02:19

Eg. We cannot reach https://nx-zh.nxvms.cloud/ from our office, and at the same time both Desktop client & mobile app show my "sites" are "Unreachable". We've tried to contact our ISP to see whether the blocking is due to their firewall setting, but they advise that the blocking is actually at the U.S. side.

Comments

6 comments

Norman

Network Optix team

July 13, 2020 08:50 Edited
Hi Raymond,

Can you run the provided Python script on the server you are trying to connect to?

Please share the results with us.

Be aware that if there is any country blocking another, there is not much we can do and you need to use the standard port forwarding method to connect to the server(s).
0
Raymond Wan

May 26, 2020 03:03
Hi Norman, below is the result for both International and Simplified Chinese Cloud:

C:\Users\admin>python /nxcloud_passlist_checkup.py
[91mnxvms.com:80 CLOSED
[92mnxvms.com:443 OPEN
[92mrelay.vmsproxy.com:80 OPEN
[91mrelay.vmsproxy.com:443 CLOSED
[92mrelay-ny.vmsproxy.com:80 OPEN
[91mrelay-ny.vmsproxy.com:443 CLOSED
[92mrelay-fr.vmsproxy.com:80 OPEN
[92mrelay-fr.vmsproxy.com:443 OPEN
[91mrelay-la.vmsproxy.com:80 CLOSED
[91mrelay-la.vmsproxy.com:443 CLOSED
[92mrelay-sy.vmsproxy.com:80 OPEN
[92mrelay-sy.vmsproxy.com:443 OPEN
[92mrelay-si.vmsproxy.com:80 OPEN
[92mrelay-si.vmsproxy.com:443 OPEN
[92mlicensing.networkoptix.com:80 OPEN
[92mlicensing.networkoptix.com:443 OPEN
[92mlicensing.vmsproxy.com:80 OPEN
[91mlicensing.vmsproxy.com:443 CLOSED
[91mupdates.networkoptix.com:80 CLOSED
[91mupdates.networkoptix.com:443 CLOSED
[91mupdates.vmsproxy.com:80 CLOSED
[91mupdates.vmsproxy.com:443 CLOSED
[92mbeta.networkoptix.com:80 OPEN
[92mbeta.networkoptix.com:443 OPEN
[92mbeta.vmsproxy.com:80 OPEN
[92mbeta.vmsproxy.com:443 OPEN
[91mstats.networkoptix.com:80 CLOSED
[91mstats.networkoptix.com:443 CLOSED
[92mstats2.networkoptix.com:80 OPEN
[92mstats2.networkoptix.com:443 OPEN
[92mstats.vmsproxy.com:80 OPEN
[91mstats.vmsproxy.com:443 CLOSED
[91mstats2.vmsproxy.com:80 CLOSED
[91mstats2.vmsproxy.com:443 CLOSED
[92mtools.vmsproxy.com:80 OPEN
[92mtools.vmsproxy.com:443 OPEN
[92mtools-eu.vmsproxy.com:80 OPEN
[92mtools-eu.vmsproxy.com:443 OPEN
[92mtime.rfc868server.com:37 OPEN
[92mus-west.rfc868server.com:37 OPEN
[92mfrankfurt.rfc868server.com:37 OPEN
[92msingapore.rfc868server.com:37 OPEN
[91mmediator.vmsproxy.com:3345 CLOSED

C:\Users\admin>python /nxcloud-zh_passlist_checkup.py
[91mnx-zh.nxvms.com:80 CLOSED
[91mnx-zh.nxvms.com:443 CLOSED
[91mrelay.vmsproxy.com:80 CLOSED
[92mrelay.vmsproxy.com:443 OPEN
[91mrelay-ny.vmsproxy.com:80 CLOSED
[92mrelay-ny.vmsproxy.com:443 OPEN
[92mrelay-fr.vmsproxy.com:80 OPEN
[92mrelay-fr.vmsproxy.com:443 OPEN
[92mrelay-la.vmsproxy.com:80 OPEN
[91mrelay-la.vmsproxy.com:443 CLOSED
[91mrelay-sy.vmsproxy.com:80 CLOSED
[92mrelay-sy.vmsproxy.com:443 OPEN
[92mrelay-si.vmsproxy.com:80 OPEN
[92mrelay-si.vmsproxy.com:443 OPEN
[92mlicensing.networkoptix.com:80 OPEN
[92mlicensing.networkoptix.com:443 OPEN
[92mlicensing.vmsproxy.com:80 OPEN
[92mlicensing.vmsproxy.com:443 OPEN
[92mupdates.networkoptix.com:80 OPEN
[91mupdates.networkoptix.com:443 CLOSED
[91mupdates.vmsproxy.com:80 CLOSED
[92mupdates.vmsproxy.com:443 OPEN
[92mbeta.networkoptix.com:80 OPEN
[92mbeta.networkoptix.com:443 OPEN
[92mbeta.vmsproxy.com:80 OPEN
[92mbeta.vmsproxy.com:443 OPEN
[91mstats.networkoptix.com:80 CLOSED
[92mstats.networkoptix.com:443 OPEN
[91mstats2.networkoptix.com:80 CLOSED
[92mstats2.networkoptix.com:443 OPEN
[91mstats.vmsproxy.com:80 CLOSED
[91mstats.vmsproxy.com:443 CLOSED
[91mstats2.vmsproxy.com:80 CLOSED
[92mstats2.vmsproxy.com:443 OPEN
[91mtools.vmsproxy.com:80 CLOSED
[91mtools.vmsproxy.com:443 CLOSED
[92mtools-eu.vmsproxy.com:80 OPEN
[92mtools-eu.vmsproxy.com:443 OPEN
[92mtime.rfc868server.com:37 OPEN
[92mus-west.rfc868server.com:37 OPEN
[92mfrankfurt.rfc868server.com:37 OPEN
[92msingapore.rfc868server.com:37 OPEN
[92mmediator.vmsproxy.com:3345 OPEN

Don't think this is entirely blocked in China as we can use the cloud service by 4G and some of the boardband, of course the speed is not as fast as in other places like HK (connection to server takes 45-60 seconds in average).

Thanks.
0
Norman

Network Optix team

June 13, 2022 09:19 Edited
Hi Raymond,

With these results you won't be able to access our cloud service.
```
[91mnx-zh.nxvms.com:80 CLOSED
[91mnx-zh.nxvms.com:443 CLOSED
```
Especially these two lines confirm that the connection between the site and the cloud service is blocked. This could be a local network limitation, but could also be an ISP or a country blocking a service.
0
Ichiro

Network Optix team

June 10, 2020 07:51
Hi Raymond,

After several tests, it looks like there is a dead point between HongKong and China.
We are not sure that if this is due to the networking devices/firewall/national network limitation. But likely this is a question to your ISP. They should be able to check the dead point.

BTW, we are going to set up a cloud instance on AWS in PRC. Maybe you would get a stable connection then.
We don't have the ETA yet, but likely would be ready by Q3/end.

Thanks.
0
Sergey Bystrov

June 10, 2020 21:44
Raymond,

Based on your case we decided to add/set up our cloud infrastructure in China, so traffic never needs to leave China.

We hope it would resolve any firewall issues. Besides, it will speed up things.

We are actively working on this. It should be a matter of days.
0
Raymond Wan

June 11, 2020 01:34
Sergey,

This is a great news! Even better than solving the route between China and outside as customers will have better experience with NX Cloud and NX system.

Kindly keep me posted on when it will be online and I can help to test.

Thanks.
0

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NX Cloud access is not working in my office and some of the locations in China

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