# Unknown server error occured **URL:** \ **Category:** Pritunl VPN\ **Created:** [January 15, 2024, 2:25pm UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693 "2024-01-15T14:25:28Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![demo](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/d/e47774/32.png) [@demo](https://forum.pritunl.com/u/demo)\ **Post date:** [January 15, 2024, 2:25pm UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/1 "2024-01-15T14:25:28Z")
I installed the pritunl server by using this url that is [https://pritunl.com/](https://pritunl.com/) but after installed and when I entered the set up key and click on save. The error is showing that is Unknown server error occured. ---
**Author:** ![zach](https://forum.pritunl.com/user_avatar/forum.pritunl.com/zach/32/1105_2.png) [@zach](https://forum.pritunl.com/u/zach)\ **Post date:** [January 16, 2024, 8:08am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/2 "2024-01-16T08:08:44Z")
Check `/var/log/pritunl.log` for the error message. ---
**Author:** ![demo](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/d/e47774/32.png) [@demo](https://forum.pritunl.com/u/demo)\ **Post date:** [January 16, 2024, 9:33am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/3 "2024-01-16T09:33:01Z")
[local][2024-01-16 14:51:05,370][INFO] Starting setup server [local][2024-01-16 14:51:05,374][INFO] Generating setup server ssl cert [local][2024-01-16 14:54:32,292][ERROR] Pritunl setup failed Traceback (most recent call last): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/ **init**.py”, line 82, in setup\_db setup\_mongo() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/mongo.py”, line 333, in setup\_mongo client = pymongo.MongoClient( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 690, in **init** seeds.update(uri\_parser.split\_hosts(entity, port)) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/uri\_parser.py”, line 364, in split\_hosts raise ConfigurationError("Empty host " “(or extra comma in host list).”) pymongo.errors.ConfigurationError: Empty host (or extra comma in host list). [local][2024-01-16 14:55:19,548][ERROR] Pritunl setup failed Traceback (most recent call last): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/ **init**.py”, line 82, in setup\_db setup\_mongo() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/mongo.py”, line 333, in setup\_mongo client = pymongo.MongoClient( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 690, in **init** seeds.update(uri\_parser.split\_hosts(entity, port)) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/uri\_parser.py”, line 364, in split\_hosts raise ConfigurationError("Empty host " “(or extra comma in host list).”) pymongo.errors.ConfigurationError: Empty host (or extra comma in host list). [local][2024-01-16 14:58:42,776][ERROR] Exception on /setup/mongodb [PUT] Traceback (most recent call last): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 2190, in wsgi\_app response = self.full\_dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1486, in full\_dispatch\_request rv = self.handle\_user\_exception(e) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1484, in full\_dispatch\_request rv = self.dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1469, in dispatch\_request return self.ensure\_sync(self.view\_functions[rule.endpoint])(\*\*view\_args) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 169, in setup\_mongodb\_put if check\_db\_ver(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 267, in check\_db\_ver db\_ver = utils.get\_db\_ver() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 93, in get\_db\_ver return \_get\_version\_doc().get(‘version’) or ( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 83, in \_get\_version\_doc doc = settings\_db.find\_one({ File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/collection.py”, line 1491, in find\_one for result in cursor.limit(-1): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1280, in next if len(self.\_\_data) or self.\_refresh(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1165, in \_refresh self.\_\_session = self.\_\_collection.database.client.\_ensure\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2027, in \_ensure\_session return self.\_\_start\_session(True, causal\_consistency=False) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 1976, in \_\_start\_session server\_session = self.\_get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2013, in \_get\_server\_session return self.\_topology.get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 525, in get\_server\_session session\_timeout = self.\_check\_session\_support() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 507, in \_check\_session\_support self.\_select\_servers\_loop( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 226, in \_select\_servers\_loop raise ServerSelectionTimeoutError( pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused, Timeout: 30s, Topology Description: \]\> [local][2024-01-16 14:58:42,776][ERROR] Exception on /setup/mongodb [PUT] Traceback (most recent call last): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 2190, in wsgi\_app response = self.full\_dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1486, in full\_dispatch\_request rv = self.handle\_user\_exception(e) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1484, in full\_dispatch\_request rv = self.dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1469, in dispatch\_request return self.ensure\_sync(self.view\_functions[rule.endpoint])(\*\*view\_args) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 169, in setup\_mongodb\_put if check\_db\_ver(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 267, in check\_db\_ver db\_ver = utils.get\_db\_ver() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 93, in get\_db\_ver return \_get\_version\_doc().get(‘version’) or ( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 83, in \_get\_version\_doc doc = settings\_db.find\_one({ File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/collection.py”, line 1491, in find\_one for result in cursor.limit(-1): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1280, in next if len(self.\_\_data) or self.\_refresh(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1165, in \_refresh self.\_\_session = self.\_\_collection.database.client.\_ensure\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2027, in \_ensure\_session return self.\_\_start\_session(True, causal\_consistency=False) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 1976, in \_\_start\_session server\_session = self.\_get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2013, in \_get\_server\_session return self.\_topology.get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 525, in get\_server\_session session\_timeout = self.\_check\_session\_support() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 507, in \_check\_session\_support self.\_select\_servers\_loop( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 226, in \_select\_servers\_loop raise ServerSelectionTimeoutError( pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused, Timeout: 30s, Topology Description: \]\> [local][2024-01-16 14:59:21,756][ERROR] Exception on /setup/mongodb [PUT] Traceback (most recent call last): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 2190, in wsgi\_app response = self.full\_dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1486, in full\_dispatch\_request rv = self.handle\_user\_exception(e) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1484, in full\_dispatch\_request rv = self.dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1469, in dispatch\_request return self.ensure\_sync(self.view\_functions[rule.endpoint])(\*\*view\_args) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 169, in setup\_mongodb\_put if check\_db\_ver(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 267, in check\_db\_ver db\_ver = utils.get\_db\_ver() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 93, in get\_db\_ver return \_get\_version\_doc().get(‘version’) or ( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 83, in \_get\_version\_doc doc = settings\_db.find\_one({ File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/collection.py”, line 1491, in find\_one for result in cursor.limit(-1): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1280, in next if len(self.\_\_data) or self.\_refresh(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1165, in \_refresh self.\_\_session = self.\_\_collection.database.client.\_ensure\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2027, in \_ensure\_session return self.\_\_start\_session(True, causal\_consistency=False) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 1976, in \_\_start\_session server\_session = self.\_get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2013, in \_get\_server\_session return self.\_topology.get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 525, in get\_server\_session session\_timeout = self.\_check\_session\_support() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 507, in \_check\_session\_support self.\_select\_servers\_loop( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 226, in \_select\_servers\_loop raise ServerSelectionTimeoutError( pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused, Timeout: 30s, Topology Description: \]\> [local][2024-01-16 14:59:21,756][ERROR] Exception on /setup/mongodb [PUT] Traceback (most recent call last): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 2190, in wsgi\_app response = self.full\_dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1486, in full\_dispatch\_request rv = self.handle\_user\_exception(e) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1484, in full\_dispatch\_request rv = self.dispatch\_request() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/flask/app.py”, line 1469, in dispatch\_request return self.ensure\_sync(self.view\_functions[rule.endpoint])(\*\*view\_args) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 169, in setup\_mongodb\_put if check\_db\_ver(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/setup/server.py”, line 267, in check\_db\_ver db\_ver = utils.get\_db\_ver() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 93, in get\_db\_ver return \_get\_version\_doc().get(‘version’) or ( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/misc.py”, line 83, in \_get\_version\_doc doc = settings\_db.find\_one({ File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/collection.py”, line 1491, in find\_one for result in cursor.limit(-1): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1280, in next if len(self.\_\_data) or self.\_refresh(): File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/cursor.py”, line 1165, in \_refresh self.\_\_session = self.\_\_collection.database.client.\_ensure\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2027, in \_ensure\_session return self.\_\_start\_session(True, causal\_consistency=False) File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 1976, in \_\_start\_session server\_session = self.\_get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/mongo\_client.py”, line 2013, in \_get\_server\_session return self.\_topology.get\_server\_session() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 525, in get\_server\_session session\_timeout = self.\_check\_session\_support() File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 507, in \_check\_session\_support self.\_select\_servers\_loop( File “/usr/lib/pritunl/usr/lib/python3.9/site-packages/pymongo/topology.py”, line 226, in \_select\_servers\_loop raise ServerSelectionTimeoutError( pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused, Timeout: 30s, Topology Description: \]\> ---
**Author:** ![zach](https://forum.pritunl.com/user_avatar/forum.pritunl.com/zach/32/1105_2.png) [@zach](https://forum.pritunl.com/u/zach)\ **Post date:** [January 16, 2024, 10:30am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/5 "2024-01-16T10:30:08Z")
The MongoDB server is offline. Run `sudo systemctl status mongod` and `sudo cat /var/log/mongodb/mongodb.log` to find the issue with the MongoDB server. ---
**Author:** ![demo](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/d/e47774/32.png) [@demo](https://forum.pritunl.com/u/demo)\ **Post date:** [January 16, 2024, 11:44am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/6 "2024-01-16T11:44:32Z")
![image](https://forum-static.pritunl.com/original/1X/fb422dfacc9c799cbc6175de8ae292709eb327e1.png) ---
**Author:** ![demo](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/d/e47774/32.png) [@demo](https://forum.pritunl.com/u/demo)\ **Post date:** [January 16, 2024, 11:46am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/7 "2024-01-16T11:46:52Z")
![image](https://forum-static.pritunl.com/original/1X/a3a5272ccfa43d5857a5b1db0ffb6b9e374a8edb.png) ---
**Author:** ![demo](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/d/e47774/32.png) [@demo](https://forum.pritunl.com/u/demo)\ **Post date:** [January 16, 2024, 11:47am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/8 "2024-01-16T11:47:44Z")
![image](https://forum-static.pritunl.com/original/1X/1e09befd3fe648b60615e569cbc839b3adfa3292.png) ---
**Author:** ![zach](https://forum.pritunl.com/user_avatar/forum.pritunl.com/zach/32/1105_2.png) [@zach](https://forum.pritunl.com/u/zach)\ **Post date:** [January 17, 2024, 11:20pm UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/9 "2024-01-17T23:20:00Z")
It’s likely the wrong MongoDB package was installed on the server. You need to use the package for the correct Linux distribution and version. Check the MongoDB documentation and verify the MongoDB repository file matches the server distribution. ---
**Author:** ![Sergej](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/s/bcef8e/32.png) [@Sergej](https://forum.pritunl.com/u/Sergej)\ **Post date:** [June 5, 2024, 9:38am UTC](https://forum.pritunl.com/t/unknown-server-error-occured/1693/10 "2024-06-05T09:38:28Z")
I ran into the same problem. After researching I found that I have an inadequate CPU. MongoDB requires avx CPU feature from version 5 onwards. [MongoDB v5.0 requires CPU AVX instructions · Issue #1724 · turnkeylinux/tracker · GitHub](https://github.com/turnkeylinux/tracker/issues/1724) Old AMD and even some modern Intel processors do not have this. I’ve got an Intel(R) Celeron J6412. How sad.