# WebSocket connection failed with Apache reverse proxy after upgrading to Cells 4.0.4 **URL:** \ **Category:** Pydio Cells\ **Created:** [December 1, 2022, 3:38am UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831 "2022-12-01T03:38:10Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![laleyan](https://avatars.discourse-cdn.com/v4/letter/l/839c29/32.png) [@laleyan](https://forum.pydio.com/u/laleyan)\ **Post date:** [December 1, 2022, 3:38am UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831/1 "2022-12-01T03:38:10Z")
Hello, I’m running Cells behind Apache reverse proxy. Both running on the same CentOS 8 server. The Apache is 2.4.37. I recently upgraded from Cells 3.x to 4.0.4. After the upgrade I’m getting an error message at the bottom of the browed UI: Connection issue Websocket seems to be disconnected, please make sure that the server is up and websocket connection is working. ![image](https://canada1.discourse-cdn.com/flex032/uploads/pydio/original/2X/8/8767992111c8942150cfc56d1420e48a5aa355bb.png) This is my configuration: ```auto The following sites are currently defined: +---+------------------------+-------------+----------------------------+ | # | BIND(S) | TLS | EXTERNAL URL | +---+------------------------+-------------+----------------------------+ | 0 | https://localhost:8181 | Self-signed | https://mypublicdomain.com | +---+------------------------+-------------+----------------------------+ ``` This is my Apache configuration: ```auto ServerName mypublicdomain.com AllowEncodedSlashes On RewriteEngine On SSLProxyEngine On ## The order of the directives matters. # If Cells is not running with https, consider using ws instead of wss ProxyPassMatch "/ws/(.*)" wss://localhost:8181/ws/$1 nocanon ## This rewrite condition is required if using Cells-Sync RewriteCond %{HTTP:Content-Type} =application/grpc [NC] RewriteRule /(.*) h2://localhost:8181/$1 [P,L] ProxyPass "/" "https://localhost:8181/" ProxyPassReverse "/" "https://localhost:8181/" ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined SSLCertificateFile /etc/letsencrypt/live/cells.example.com/fullchain.pem SSLCertificateKeyFile /etc/letsencrypt/live/cells.example.com/privkey.pem Include /etc/letsencrypt/options-ssl-apache.conf ``` When I hit [https://localhost:8181](https://localhost:8181), everything is working fine including the websockets. When I hit [https://mypublicdomain.com](https://mypublicdomain.com) through the Apache reverse proxy, the websockets are not working. Everything was working just fine when before the Cells 3.x to 4.0.4 upgrade. What can be the issue? ---
**Author:** ![laleyan](https://avatars.discourse-cdn.com/v4/letter/l/839c29/32.png) [@laleyan](https://forum.pydio.com/u/laleyan)\ **Post date:** [December 10, 2022, 9:23pm UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831/2 "2022-12-10T21:23:41Z")
I’m still getting the same error after upgrading to Cells 4.0.5 ---
**Author:** ![laleyan](https://avatars.discourse-cdn.com/v4/letter/l/839c29/32.png) [@laleyan](https://forum.pydio.com/u/laleyan)\ **Post date:** [December 12, 2022, 3:45am UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831/3 "2022-12-12T03:45:14Z")
It seems like the self-signed certificate in Cells is the issue because if I turn off TLS on the Cells and change the following lines in the Apache configuration, the websockets are working just fine: ```auto ProxyPassMatch "/ws/(.*)" ws://localhost:8181/ws/$1 nocanon ProxyPass "/" "http://localhost:8181/" ProxyPassReverse "/" "http://localhost:8181/" ``` ```auto +---+------------------------+---- ---+----------------------------+ | # | BIND(S) | TLS | EXTERNAL URL | +---+------------------------+------ -+----------------------------+ | 0 | https://localhost:8181 | No Tls | https://mypublicdomain.com | +---+------------------------+------ -+----------------------------+ ``` What changed in v4 to cause the websocket issue? ---
**Author:** ![c12simple](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/c12simple/32/90_2.png) [@c12simple](https://forum.pydio.com/u/c12simple)\ **Post date:** [December 13, 2022, 9:28am UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831/4 "2022-12-13T09:28:55Z")
Hello, When you activate self-signed cert, please try following params in reverse proxy settings: ```auto SSLProxyVerify None SSLProxyCheckPeerCN Off SSLProxyCheckPeerName Off ``` ---
**Author:** ![laleyan](https://avatars.discourse-cdn.com/v4/letter/l/839c29/32.png) [@laleyan](https://forum.pydio.com/u/laleyan)\ **Post date:** [December 13, 2022, 7:23pm UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831/5 "2022-12-13T19:23:59Z")
Unfortunately, adding those 3 settings in my Apache configuration don’t make any difference. The websocket error remains. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex032/uploads/pydio/original/2X/6/61f19fa52ec15fd4250db51aea351adba0e831fd.png) [@system](https://forum.pydio.com/u/system)\ **Post date:** [February 11, 2023, 7:24pm UTC](https://forum.pydio.com/t/websocket-connection-failed-with-apache-reverse-proxy-after-upgrading-to-cells-4-0-4/4831/6 "2023-02-11T19:24:53Z")
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