# \#connection **URL:** https://community.neo4j.com/tag/connection/42.md [Latest](https://community.neo4j.com/latest.md) · [Categories](https://community.neo4j.com/categories.md) · [Tags](https://community.neo4j.com/tags.md) --- ## [Neo4j Browser Not Loading](https://community.neo4j.com/t/neo4j-browser-not-loading/74885)
**Author:** [@berdalyyew99](https://community.neo4j.com/u/berdalyyew99)\ **Replies:** 3\ **Last updated:** [July 28, 2025, 9:06pm UTC](https://community.neo4j.com/t/neo4j-browser-not-loading/74885 "2025-07-28T21:06:18Z")
After rebooting my server, I encountered an issue where the Neo4j Browser UI no longer loads at: http://\:7474/browser What I Observed The page shows a blank white screen, and never loads the Neo4j Browse… --- ## [Unable to connect Neo4j](https://community.neo4j.com/t/unable-to-connect-neo4j/74633)
**Author:** [@shubhikat](https://community.neo4j.com/u/shubhikat)\ **Replies:** 1\ **Last updated:** [July 11, 2025, 12:32pm UTC](https://community.neo4j.com/t/unable-to-connect-neo4j/74633 "2025-07-11T12:32:53Z")
Hi Team, I am currently facing an issue to connecting neo4j. Despite multiple attempts, I have been unable to establish a connection. I have verified the network settings and followed the standard troubleshooting steps… --- ## [Cannot connect from within VPC over NLB to neo4j community container running in ECS](https://community.neo4j.com/t/cannot-connect-from-within-vpc-over-nlb-to-neo4j-community-container-running-in-ecs/72497)
**Author:** [@vito](https://community.neo4j.com/u/vito)\ **Replies:** 0\ **Last updated:** [January 31, 2025, 12:06pm UTC](https://community.neo4j.com/t/cannot-connect-from-within-vpc-over-nlb-to-neo4j-community-container-running-in-ecs/72497 "2025-01-31T12:06:12Z")
I'm running Neo4j 5.26.1 Community Edition in AWS ECS (Fargate) behind a Network Load Balancer. While the container starts successfully and health checks pass, I'm unable to connect from EC2 instances within the same VPC… --- ## [A random Kafka Connector stops working every week or two because of a Neo4j error ServiceUnavailableException: Could not perform discovery for database](https://community.neo4j.com/t/a-random-kafka-connector-stops-working-every-week-or-two-because-of-a-neo4j-error-serviceunavailableexception-could-not-perform-discovery-for-database/71434)
**Author:** [@maximdev](https://community.neo4j.com/u/maximdev)\ **Replies:** 0\ **Last updated:** [November 14, 2024, 9:32am UTC](https://community.neo4j.com/t/a-random-kafka-connector-stops-working-every-week-or-two-because-of-a-neo4j-error-serviceunavailableexception-could-not-perform-discovery-for-database/71434 "2024-11-14T09:32:53Z")
Hi, Neo4j hosted on AuraDB: v4.4 Self hosted Confluence Hub: neo4j/kafka-connect-neo4j:5.0.2 I have 15-20 different Kafka Connectors that fetch data from Neo4j using cypher queries. I have one random Kafka Connectors… --- ## [How to connect to Neo4j AuraDB from Kubernetes GKE?](https://community.neo4j.com/t/how-to-connect-to-neo4j-auradb-from-kubernetes-gke/71165)
**Author:** [@david.linares1](https://community.neo4j.com/u/david.linares1)\ **Replies:** 0\ **Last updated:** [October 25, 2024, 6:09pm UTC](https://community.neo4j.com/t/how-to-connect-to-neo4j-auradb-from-kubernetes-gke/71165 "2024-10-25T18:09:40Z")
I'm performing a POC and the main goal is to connect from an App (it's a simple python code that could run a cypher query using python driver) within Kubernetes GKE to an AuraDB instance in GCP. Anyone knows is this is … --- ## [ Fails to Connect to Aura DB: Browser Works, but Python Fails](https://community.neo4j.com/t/fails-to-connect-to-aura-db-browser-works-but-python-fails/69223)
**Author:** [@chenweiyu0315](https://community.neo4j.com/u/chenweiyu0315)\ **Replies:** 1\ **Last updated:** [August 14, 2024, 9:34am UTC](https://community.neo4j.com/t/fails-to-connect-to-aura-db-browser-works-but-python-fails/69223 "2024-08-14T09:34:16Z")
I am encountering an issue where I can connect to our Neo4j Aura database using a web browser without any problems. However, when trying to connect via Python code using Neo4j version 5.23.1, the connection fails. Networ… --- ## [Multiple Services Modifying same graph](https://community.neo4j.com/t/multiple-services-modifying-same-graph/67954)
**Author:** [@nazevedo3](https://community.neo4j.com/u/nazevedo3)\ **Replies:** 2\ **Last updated:** [May 16, 2024, 9:29pm UTC](https://community.neo4j.com/t/multiple-services-modifying-same-graph/67954 "2024-05-16T21:29:33Z")
Hello, I have 4 separate microservices that query/modify the same graph in Neo4j. They all key off of the same parent node and are supposed to create their own child nodes. My queries work fine when developing locally… --- ## [Connection dropping after 1 hour](https://community.neo4j.com/t/connection-dropping-after-1-hour/67755)
**Author:** [@henry.bruce](https://community.neo4j.com/u/henry.bruce)\ **Replies:** 1\ **Last updated:** [May 6, 2024, 12:43pm UTC](https://community.neo4j.com/t/connection-dropping-after-1-hour/67755 "2024-05-06T12:43:09Z")
Hello, We're seeing unusual behaviour with the DB connection (presumably) dropping after exactly 1 hour. We're running the below (as a Cloud Function in GCP), which is very active writing to the DB minute by minute but … --- ## [Unable to retrieve routing information Transaction failed and will be retried in](https://community.neo4j.com/t/unable-to-retrieve-routing-information-transaction-failed-and-will-be-retried-in/66420)
**Author:** [@setu.96.shah](https://community.neo4j.com/u/setu.96.shah)\ **Replies:** 2\ **Last updated:** [February 19, 2024, 11:04pm UTC](https://community.neo4j.com/t/unable-to-retrieve-routing-information-transaction-failed-and-will-be-retried-in/66420 "2024-02-19T23:04:39Z")
I'm trying to connect/add to my neo4j database thru python script running on a VM instance. I see the following message and eventually my query is not executed. Unable to retrieve routing information Transaction faile… --- ## [Routing issue when connecting Lambda to AuraDB](https://community.neo4j.com/t/routing-issue-when-connecting-lambda-to-auradb/65775)
**Author:** [@graph](https://community.neo4j.com/u/graph)\ **Replies:** 1\ **Last updated:** [January 15, 2024, 3:56pm UTC](https://community.neo4j.com/t/routing-issue-when-connecting-lambda-to-auradb/65775 "2024-01-15T15:56:25Z")
Hello, I am trying to connect Lambda to AuraDB and I get DNS issue: "Error processing Lambda function: Unable to retrieve routing information" I have granted access to the internet and I can resolve other IPs, but thi… --- ## [Neo4j-graphql running out of connections since update to v4.4.4](https://community.neo4j.com/t/neo4j-graphql-running-out-of-connections-since-update-to-v4-4-4/65460)
**Author:** [@development\_prod](https://community.neo4j.com/u/development_prod)\ **Replies:** 11\ **Last updated:** [January 3, 2024, 2:48pm UTC](https://community.neo4j.com/t/neo4j-graphql-running-out-of-connections-since-update-to-v4-4-4/65460 "2024-01-03T14:48:30Z")
Hi All, I'm running a Node.js Apollo GraphQL API using neo4j-graphql. This is connected to an AuraDB instance of Neo4j (v4). I've recently updated @neo4j/graphql from 3.5.1 to 4.4.4 (along with updating neo4j-driver fr… --- ## [Dockered Neo4j community error trying to bind to public IP address](https://community.neo4j.com/t/dockered-neo4j-community-error-trying-to-bind-to-public-ip-address/65523)
**Author:** [@apoloduvalis](https://community.neo4j.com/u/apoloduvalis)\ **Replies:** 1\ **Last updated:** [December 28, 2023, 4:48pm UTC](https://community.neo4j.com/t/dockered-neo4j-community-error-trying-to-bind-to-public-ip-address/65523 "2023-12-28T16:48:42Z")
I need to access remotely to a dockered Neo4j using the public IP address, but when I configure the IP address via parameters, the connection through http via 7474 port fails and neo4j.log shows these exceptions: org.n… --- ## [How to connect with ElasticSearch endpoint with API Key and Secret](https://community.neo4j.com/t/how-to-connect-with-elasticsearch-endpoint-with-api-key-and-secret/64438)
**Author:** [@naman.sahore](https://community.neo4j.com/u/naman.sahore)\ **Replies:** 0\ **Last updated:** [October 11, 2023, 11:42am UTC](https://community.neo4j.com/t/how-to-connect-with-elasticsearch-endpoint-with-api-key-and-secret/64438 "2023-10-11T11:42:00Z")
I'm working with Neo4j Community Edition 5.11, and I'm trying to establish a connection to an Elasticsearch endpoint that is secured with an API Key and Secret. The goal is to use Neo4j in combination with Elasticsearch … --- ## [Using AuraDB with a Gatsby website](https://community.neo4j.com/t/using-auradb-with-a-gatsby-website/64371)
**Author:** [@aurelien](https://community.neo4j.com/u/aurelien)\ **Replies:** 0\ **Last updated:** [October 4, 2023, 6:48pm UTC](https://community.neo4j.com/t/using-auradb-with-a-gatsby-website/64371 "2023-10-04T18:48:40Z")
I'm trying to use an AuraDB (free) instance with my Gatsby website (to store data there in place of a local file or DB). But I'm a bit lost on how to connect it. I'm using the following module: neo4j-driver, gatsby-sou… --- ## [Error Connecting to DBMS](https://community.neo4j.com/t/error-connecting-to-dbms/62671)
**Author:** [@josmithsonean22](https://community.neo4j.com/u/josmithsonean22)\ **Replies:** 0\ **Last updated:** [May 25, 2023, 12:25pm UTC](https://community.neo4j.com/t/error-connecting-to-dbms/62671 "2023-05-25T12:25:49Z")
Hi, I'm very new to neo4j and am trying to graph from python/spacy. I'm on Windows 11, tested on neo4j 4.4.19 , 5.3.0 and 5.8.0 through Neo4j Desktop. I'm trying to simply start my DB (that I have started before) but k… --- ## [Unable to connect to sandbox](https://community.neo4j.com/t/unable-to-connect-to-sandbox/61017)
**Author:** [@vaibhavsingh](https://community.neo4j.com/u/vaibhavsingh)\ **Replies:** 1\ **Last updated:** [February 21, 2023, 10:01pm UTC](https://community.neo4j.com/t/unable-to-connect-to-sandbox/61017 "2023-02-21T22:01:02Z")
Hi, I have been taking the GDS course on GraphAcademy however, this morning I am unable to run the Cypher on Sandbox as it keeps connecting and then fails. I checked using the sandbox in the browser and the sandbox insta… --- ## [No Routing servers available](https://community.neo4j.com/t/no-routing-servers-available/60992)
**Author:** [@taylor](https://community.neo4j.com/u/taylor)\ **Replies:** 0\ **Last updated:** [February 20, 2023, 8:44pm UTC](https://community.neo4j.com/t/no-routing-servers-available/60992 "2023-02-20T20:44:58Z")
I'm working with Nestjs and using GitHub - adam-cowley/nest-neo4j: A NestJS module for integrating with Neo4j. I was using Drivine but ran into session issues executing write queries interesting through json. I'm getting… --- ## [Neo4j Sandbox Server Connection error](https://community.neo4j.com/t/neo4j-sandbox-server-connection-error/55057)
**Author:** [@kevinkooper208](https://community.neo4j.com/u/kevinkooper208)\ **Replies:** 0\ **Last updated:** [April 20, 2022, 10:49am UTC](https://community.neo4j.com/t/neo4j-sandbox-server-connection-error/55057 "2022-04-20T10:49:41Z")
username and password were prepopulated When I click on connect on neo4j sandbox browser I received the following error: Error msg: Service unavailable: Web Socket connection failure due to browser security --- ## [Neo4jError: Connection acquisition timed out in 60000 ms](https://community.neo4j.com/t/neo4jerror-connection-acquisition-timed-out-in-60000-ms/52432)
**Author:** [@mad\_shivam111](https://community.neo4j.com/u/mad_shivam111)\ **Replies:** 7\ **Last updated:** [February 25, 2022, 5:18pm UTC](https://community.neo4j.com/t/neo4jerror-connection-acquisition-timed-out-in-60000-ms/52432 "2022-02-25T17:18:48Z")
Hi, I am frequently getting this error while making concurrent requests. Neo4jError: Connection acquisition timed out in 60000 ms. Pool status: Active conn count = 0, Idle conn count = 0. I am using "neo4j-driver": "^… --- ## [Troubleshooting Connection Issues to Neo4j](https://community.neo4j.com/t/troubleshooting-connection-issues-to-neo4j/129)
**Author:** [@david\_allen](https://community.neo4j.com/u/david_allen)\ **Replies:** 46\ **Last updated:** [February 10, 2022, 8:56am UTC](https://community.neo4j.com/t/troubleshooting-connection-issues-to-neo4j/129 "2022-02-10T08:56:05Z")
Troubleshooting Connection Issues to Neo4j (including Browser, Cypher Shell, and Driver Applications) This post describes common issues users may encounter in connecting Neo4j Browser or cypher-shell to a Neo4j database,… --- ## [Connecting to Free Database Neo.ClientError.Security.AuthenticationRateLimit:](https://community.neo4j.com/t/connecting-to-free-database-neo-clienterror-security-authenticationratelimit/50938)
**Author:** [@warde.wynter1](https://community.neo4j.com/u/warde.wynter1)\ **Replies:** 2\ **Last updated:** [January 24, 2022, 9:47pm UTC](https://community.neo4j.com/t/connecting-to-free-database-neo-clienterror-security-authenticationratelimit/50938 "2022-01-24T21:47:36Z")
Hi...I am trying to connect to the free database but am not sure what the password is as I did not setup the free database? Cheers Warde Connect to Neo4j Database access might require an authenticated connection Co… --- ## [Unable to connect to py2neo package](https://community.neo4j.com/t/unable-to-connect-to-py2neo-package/48810)
**Author:** [@DMF194](https://community.neo4j.com/u/DMF194)\ **Replies:** 2\ **Last updated:** [December 15, 2021, 1:52am UTC](https://community.neo4j.com/t/unable-to-connect-to-py2neo-package/48810 "2021-12-15T01:52:01Z")
Hi everyone, I realized a problem concerning py2neo package used with Python vr3.5+ I did the following for neo4j package authentication: GraphDatabase.driver("bolt://localhost:7867", "neo4j", "password") But for py… --- ## [Unable to establish remote connection : Neo4jError: WebSocket connection failure](https://community.neo4j.com/t/unable-to-establish-remote-connection-neo4jerror-websocket-connection-failure/38891)
**Author:** [@dubey.hemanshu](https://community.neo4j.com/u/dubey.hemanshu)\ **Replies:** 5\ **Last updated:** [November 8, 2021, 11:50am UTC](https://community.neo4j.com/t/unable-to-establish-remote-connection-neo4jerror-websocket-connection-failure/38891 "2021-11-08T11:50:42Z")
Hi All I am using neo4j 4.2.6 running on different server, It was all running fine and i am able to connect it from my PC using neo4j desktop, but now suddenly, its giving me error as below when i am trying to connect … --- ## [Connect community edition to neo4j desktop](https://community.neo4j.com/t/connect-community-edition-to-neo4j-desktop/46853)
**Author:** [@arturo.guerrero](https://community.neo4j.com/u/arturo.guerrero)\ **Replies:** 2\ **Last updated:** [November 2, 2021, 9:19pm UTC](https://community.neo4j.com/t/connect-community-edition-to-neo4j-desktop/46853 "2021-11-02T21:19:48Z")
Dear All, I´m trying to connect my community edition database to neo4j desktop. I found some explanation on the community website, but I´m not able to run them. I think it´s due to the desktop version 4.0.3 I´m using. T… --- ## [Node.js neo4J connection](https://community.neo4j.com/t/node-js-neo4j-connection/45174)
**Author:** [@kyawzinthiha.dev.off](https://community.neo4j.com/u/kyawzinthiha.dev.off)\ **Replies:** 0\ **Last updated:** [September 30, 2021, 4:06pm UTC](https://community.neo4j.com/t/node-js-neo4j-connection/45174 "2021-09-30T16:06:39Z")
I am building social media api which will probably run 24/7. I previously used mongoDB. I am switching to neo4J. In npm documentation it says to close connection and session after done. Do I need to close the connection… --- ## [Very slow connecting](https://community.neo4j.com/t/very-slow-connecting/2295)
**Author:** [@Michka](https://community.neo4j.com/u/Michka)\ **Replies:** 6\ **Last updated:** [September 1, 2021, 10:09am UTC](https://community.neo4j.com/t/very-slow-connecting/2295 "2021-09-01T10:09:39Z")
Hello all, i think i have a connection problem from my local Apache-Server to my local Neo4j-Server. The connection always takes about a second. Can this be a configuration problem? I use the default configuration fro… --- ## [How to "encrypt" or hide password of database connection in apoc.conf?](https://community.neo4j.com/t/how-to-encrypt-or-hide-password-of-database-connection-in-apoc-conf/41548)
**Author:** [@alejandropuerto](https://community.neo4j.com/u/alejandropuerto)\ **Replies:** 0\ **Last updated:** [July 17, 2021, 4:46am UTC](https://community.neo4j.com/t/how-to-encrypt-or-hide-password-of-database-connection-in-apoc-conf/41548 "2021-07-17T04:46:03Z")
Hello! I use APOC for connecting to a database but I want to know if there is a way to "encrypt" or hide the password of the database connection located in apoc.conf. --- ## [ETL MSSQL Connection Error](https://community.neo4j.com/t/etl-mssql-connection-error/40786)
**Author:** [@Tim71](https://community.neo4j.com/u/Tim71)\ **Replies:** 2\ **Last updated:** [July 7, 2021, 9:13am UTC](https://community.neo4j.com/t/etl-mssql-connection-error/40786 "2021-07-07T09:13:51Z")
Hi I am getting the following error when attempting to connect to a local MSSQL 2016 database through the Neo4j ETL Tool: Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverter at … --- ## [Connecting to local neo4j on mac from a windows virtual machine](https://community.neo4j.com/t/connecting-to-local-neo4j-on-mac-from-a-windows-virtual-machine/38389)
**Author:** [@raghad.baiad](https://community.neo4j.com/u/raghad.baiad)\ **Replies:** 4\ **Last updated:** [May 17, 2021, 1:54pm UTC](https://community.neo4j.com/t/connecting-to-local-neo4j-on-mac-from-a-windows-virtual-machine/38389 "2021-05-17T13:54:56Z")
I have neo4j 4.1.3 Enterprise edition installed on my macOS. Recently I installed a windows virtual image using VMWareFusion. The task I'm trying to achieve is to connect to my local neo4j from the windows image. I wa… --- ## [Connecting neo4j database to structr](https://community.neo4j.com/t/connecting-neo4j-database-to-structr/38219)
**Author:** [@pquiroga](https://community.neo4j.com/u/pquiroga)\ **Replies:** 6\ **Last updated:** [May 14, 2021, 9:52am UTC](https://community.neo4j.com/t/connecting-neo4j-database-to-structr/38219 "2021-05-14T09:52:52Z")
Hi, neo4j community, I´d like to know if there is a procedure to connect a neo4j database to structr. Do you know if the user and password must have the default parameters (user:neo4j/password:neo4j) to avoid issues dur… [Next page](https://community.neo4j.com/tag/connection/42.md?match_all_tags=true&page=1&tags%5B%5D=connection)