Because our plugins and addons rely on a connection to our website's API to verify account purchases, users may encounter a "no internet" error message when the plugin or addon cannot make an outgoing connection.
Common Fixes
The two most common blockers for our plugins are:
User Firewall settings
Antivirus software
It's recommended to temporarily disable these and test the plugin connection again if you're experiencing a connection error.
Tried the above, and still not able to connect? Proceed with the next steps:
Connectivity Test
On your operating system command line prompt, verify this returns ok:
> curl https://api.poliigon.com/api/v1/categories
Should respond with:
{"message":"Unauthenticated."}
Inside your software's python console: Try this first, one line at a time
import requests
url = "https://api.poliigon.com/api/v1/categories"
res = requests.get(url, timeout=20)
print(res, res.reason)
A "good" (or rather, expected) response would be:
<Response [401]> Unauthorized
If this fails to connect, then try the following, to verify you can access non-poliigon internet (one line at a time):
import requests
url = "https://www.google.com"
res = requests.get(url, timeout=20)
print(res, res.reason)
a "good" response would be:
<Response [200]> OK
If you're getting responses that are different from the expected responses listed above, you may have a general connection issue, which may require individual investigation.
If you've got the expected responses and are still not able to connect, and/or you're working in an office managed by an IT department, you may need to whitelist domains in order to connect, in which case proceed with the following.
IT Department Domain Whitelisting
If they can whitelist at the domain level, the following should work:
https://cdn.poliigon.com is used for actual asset file downloads
https://cdn.poliigon.net is used for preview downloads
https://poliigon.net is used for preview downloads (notice there is no subdomain, this is for image resizing requests like https://poliigon.net/cdn-cgi/image/…)
https://api.poliigon.com is used for other communication of data
https://api.poliigon.net is going to be used in the future in the plugins, would be good to allow lost right now
https://cache.poliigon.com is used for asset file download
If the users want to connect to Poliigon's production API, they are required to whitelist the following IPV4 and IPV6 CIDRs to their outbound traffic as it is working on the dynamic ip assignment and the IPs are assigned randomly from the following mentioned CIDR blocks:
Users ————————> https://api.poliigon.com
IPV4 CIDR Blocks:
3.5.136.0/22
18.192.0.0/15
64.252.89.0/24
99.77.136.0/24
52.58.0.0/15
18.184.0.0/15
52.57.0.0/16
54.93.0.0/16
3.124.0.0/14
3.33.35.0/24
52.95.255.128/28
18.156.0.0/14
64.252.87.0/24
99.77.158.0/24
3.64.0.0/12
151.148.35.0/24
99.77.247.0/24
64.252.88.0/24
52.29.0.0/16
99.151.188.0/23
15.193.4.0/24
99.150.16.0/21
3.120.0.0/14
18.198.0.0/15
52.94.248.112/28
35.156.0.0/14
18.153.0.0/16
173.83.196.0/23
64.252.86.0/24
18.196.0.0/15
52.95.248.0/24
52.94.146.0/24
3.2.35.0/26
18.89.0.0/18
18.194.0.0/15
52.46.184.0/22
35.71.105.0/24
52.28.0.0/16
3.5.134.0/23
15.177.68.0/23
IPV6 CIDR Blocks: Only for IPV6 Networks
2600:1ffd:80a7::/48
2a05:d070:4000::/40
2a05:d03a:4000::/40
2600:1ffd:80c8::/48
2620:107:4002::/48
2a01:578:13::/48
2600:1ffd:80e1::/48
2a05:d035:4000::/40
2600:f0f0:1:1700::/56
2a05:d000:4000::/40
2a05:d072:4000::/40
2a05:d030:4000::/40
2a05:d024::/36
2a05:d014::/35
2600:f0f0:82:800::/56
2600:1ffd:80f0::/48
2600:1ffd:80d0::/48
2a05:d034:4000::/40
2a05:d071:4000::/40
2a05:d031:4000::/40
2a05:d02d::/36
2a05:d07f:4000::/40
2600:1ffd:80cb::/48
2620:107:4003::/48
2a05:d01d::/36
Production Downloader - https://downloader.poliigon.com:
If the users want to connect to the Poliigon's production downloader, they are required to whitelist the following IPV4 and IPV6 CIDRs to their outbound traffic as it is working on the dynamic ip assignment and the IPs are assigned randomly from the following mentioned CIDR blocks.
Users ————————> https://downloader.poliigon.com
IPV4 CIDR Blocks:
173.245.48.0/20
103.21.244.0/22
103.22.200.0/22
103.31.4.0/22
141.101.64.0/18
108.162.192.0/18
190.93.240.0/20
188.114.96.0/20
197.234.240.0/22
198.41.128.0/17
162.158.0.0/15
104.16.0.0/13
104.24.0.0/14
172.64.0.0/13
131.0.72.0/22
IPV6 CIDR Blocks: Only for IPV6 Networks
2400:cb00::/32
2606:4700::/32
2803:f800::/32
2405:b500::/32
2405:8100::/32
2a06:98c0::/29
2c0f:f248::/32