Can't connect printers

What is the problem?

3D printers fail to connect to Aspire Revo but work fine with Raspi

What did you already try to solve it?

Fresh install of Ubuntu, updates then install Octoprint from snapcraft.io

Have you tried running in safe mode and if so did it solve the issue?

no

Complete Logs

octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)</small
2020-09-23 15:59:31,045 - octoprint.startup - INFO - ******************************************************************************
2020-09-23 15:59:31,048 - octoprint.startup - INFO - Starting OctoPrint 1.4.0
2020-09-23 15:59:31,050 - octoprint.startup - INFO - ******************************************************************************
2020-09-23 15:59:31,311 - octoprint.plugin.core - INFO - Loading plugins from /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins, /etc/octoprint/plugins and installed plugin packages...
2020-09-23 15:59:34,621 - octoprint.plugin.core - INFO - Plugin Pi Support Plugin did not pass check, not loading.
2020-09-23 15:59:35,044 - octoprint.plugins.octoprint.plugins.discovery - INFO - pybonjour is not installed, Zeroconf Discovery won't be available
2020-09-23 15:59:35,074 - octoprint.plugin.core - INFO - Found 14 plugin(s) providing 14 mixin implementations, 25 hook handlers
2020-09-23 15:59:35,344 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
2020-09-23 15:59:35,381 - octoprint.server - INFO - Intermediary server started
2020-09-23 15:59:35,382 - octoprint.plugin.core - INFO - Loading plugins from /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins, /etc/octoprint/plugins and installed plugin packages...
2020-09-23 15:59:35,406 - octoprint.plugin.core - INFO - Plugin Pi Support Plugin did not pass check, not loading.
2020-09-23 15:59:35,500 - octoprint.plugin.core - INFO - Found 14 plugin(s) providing 14 mixin implementations, 25 hook handlers
2020-09-23 15:59:35,502 - octoprint.printer.profile - ERROR - Profile _default does not exist, creating _default again and setting it as default
2020-09-23 15:59:35,607 - octoprint.filemanager.storage - INFO - Initializing the file metadata for /etc/octoprint/uploads...
2020-09-23 15:59:35,610 - octoprint.filemanager.storage - INFO - ... file metadata for /etc/octoprint/uploads initialized successfully.
2020-09-23 15:59:35,615 - octoprint.server - INFO - Added new permission from plugin action_command_prompt: PLUGIN_ACTION_COMMAND_PROMPT_INTERACT (needs: "Need(method='role', value='plugin_action_command_prompt_interact')")
2020-09-23 15:59:35,616 - octoprint.server - INFO - Added new permission from plugin announcements: PLUGIN_ANNOUNCEMENTS_READ (needs: "Need(method='role', value='plugin_announcements_read')")
2020-09-23 15:59:35,616 - octoprint.server - INFO - Added new permission from plugin announcements: PLUGIN_ANNOUNCEMENTS_MANAGE (needs: "Need(method='role', value='plugin_announcements_manage'), Need(method='role', value='plugin_announcements_read')")
2020-09-23 15:59:35,617 - octoprint.server - INFO - Added new permission from plugin appkeys: PLUGIN_APPKEYS_ADMIN (needs: "Need(method='role', value='plugin_appkeys_admin')")
2020-09-23 15:59:35,618 - octoprint.server - INFO - Added new permission from plugin backup: PLUGIN_BACKUP_ACCESS (needs: "Need(method='role', value='plugin_backup_access')")
2020-09-23 15:59:35,619 - octoprint.server - INFO - Added new permission from plugin logging: PLUGIN_LOGGING_MANAGE (needs: "Need(method='role', value='plugin_logging_manage')")
2020-09-23 15:59:35,619 - octoprint.server - INFO - Added new permission from plugin pluginmanager: PLUGIN_PLUGINMANAGER_MANAGE (needs: "Need(method='role', value='plugin_pluginmanager_manage')")
2020-09-23 15:59:35,620 - octoprint.server - INFO - Added new permission from plugin pluginmanager: PLUGIN_PLUGINMANAGER_INSTALL (needs: "Need(method='role', value='plugin_pluginmanager_install'), Need(method='role', value='plugin_pluginmanager_manage')")
2020-09-23 15:59:35,623 - octoprint.server - INFO - Added new permission from plugin printer_safety_check: PLUGIN_PRINTER_SAFETY_CHECK_DISPLAY (needs: "Need(method='role', value='plugin_printer_safety_check_display')")
2020-09-23 15:59:35,625 - octoprint.server - INFO - Added new permission from plugin softwareupdate: PLUGIN_SOFTWAREUPDATE_CHECK (needs: "Need(method='role', value='plugin_softwareupdate_check')")
2020-09-23 15:59:35,628 - octoprint.server - INFO - Added new permission from plugin softwareupdate: PLUGIN_SOFTWAREUPDATE_UPDATE (needs: "Need(method='role', value='plugin_softwareupdate_update')")
2020-09-23 15:59:38,647 - octoprint.util.pip - INFO - Using "/snap/octoprint-pfs/56/usr/bin/python3 -m pip" as command to invoke pip
2020-09-23 15:59:41,516 - octoprint.util.pip - INFO - Version of pip is 20.1
2020-09-23 15:59:41,519 - octoprint.util.pip - INFO - pip installs to /snap/octoprint-pfs/56/usr/lib/python3/dist-packages (writable -> yes), --user flag needed -> no, virtual env -> no
2020-09-23 15:59:41,520 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-09-23 15:59:41,558 - octoprint.plugin.core - INFO - Initialized 14 plugin implementation(s)
2020-09-23 15:59:41,628 - octoprint.plugin.core - INFO - 14 plugin(s) registered with the system:
| Action Command Prompt Support (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/action_command_prompt
| Announcement Plugin (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/announcements
| Anonymous Usage Tracking (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/tracking
| Application Keys Plugin (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/appkeys
| Backup & Restore (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/backup
| Core Wizard (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/corewizard
| Discovery (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/discovery
| Error Tracking (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/errortracking
| Logging (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/logging
| Login UI (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/loginui
| Plugin Manager (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/pluginmanager
| Printer Safety Check (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/printer_safety_check
| Software Update (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/softwareupdate
| Virtual Printer (bundled) = /snap/octoprint-pfs/56/lib/python3.6/site-packages/octoprint/plugins/virtual_printer
Prefix legend: ! = disabled, # = blacklisted, * = incompatible
2020-09-23 15:59:41,660 - octoprint.environment - INFO - Detected environment is Python 3.6.9 under Linux (linux). Details:
| hardware:
| cores: 4
| freq: 0.0
| ram: 2083295232
| os:
| id: linux
| platform: linux
| python:
| pip: '20.1'
| version: 3.6.9
2020-09-23 15:59:41,671 - octoprint.server - INFO - Reset webasset folder /etc/octoprint/generated/webassets...
2020-09-23 15:59:41,673 - octoprint.server - INFO - Reset webasset folder /etc/octoprint/generated/.webassets-cache...
2020-09-23 15:59:42,644 - octoprint.server - INFO - Shutting down intermediary server...
2020-09-23 15:59:42,896 - octoprint.server - INFO - Intermediary server shut down
2020-09-23 15:59:42,902 - octoprint.events - INFO - Processing startup event, this is our first event
2020-09-23 15:59:42,903 - octoprint.events - INFO - Adding 0 events to queue that were held back before startup event
2020-09-23 15:59:42,904 - octoprint.filemanager - INFO - Adding backlog items from all storage types to analysis queue...
2020-09-23 15:59:42,912 - octoprint.filemanager - INFO - Added 0 items from storage type "local" to analysis queue
2020-09-23 15:59:42,914 - octoprint.server.util.watchdog - INFO - Running initial scan on watched folder...
2020-09-23 15:59:42,929 - octoprint.server.util.watchdog - INFO - ... initial scan done.
2020-09-23 15:59:42,932 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance on Octoprint for SSDP
2020-09-23 15:59:42,937 - octoprint.server - INFO - Listening on http://0.0.0.0:5000 and http://[::]:5000
2020-09-23 15:59:43,773 - octoprint.plugins.announcements - INFO - Loaded channel _important from Important OctoPrint Announcements in 0.8s
2020-09-23 15:59:44,107 - octoprint.plugins.pluginmanager - INFO - Loaded plugin repository data from https://plugins.octoprint.org/plugins.json
2020-09-23 15:59:44,756 - octoprint.plugins.announcements - INFO - Loaded channel _releases from OctoPrint Release Announcements in 0.78s
2020-09-23 15:59:45,716 - octoprint.plugins.announcements - INFO - Loaded channel _blog from OctoBlog in 0.76s
2020-09-23 15:59:45,988 - octoprint.util.pip - INFO - Using "/snap/octoprint-pfs/56/usr/bin/python3 -m pip" as command to invoke pip
2020-09-23 15:59:45,995 - octoprint.util.pip - INFO - pip installs to /snap/octoprint-pfs/56/usr/lib/python3/dist-packages (writable -> yes), --user flag needed -> no, virtual env -> no
2020-09-23 15:59:46,015 - octoprint.util.pip - INFO - ==> pip ok -> yes
2020-09-23 15:59:46,770 - octoprint.plugins.announcements - INFO - Loaded channel _plugins from OctoPrint Plugin Repository in 0.84s
2020-09-23 15:59:46,780 - octoprint.plugins.pluginmanager - INFO - Loaded plugin notices data from https://plugins.octoprint.org/notices.json
2020-09-23 15:59:47,512 - octoprint.plugins.announcements - INFO - Loaded channel _octopi from OctoPi Announcements in 0.64s
2020-09-23 15:59:49,551 - octoprint.util.pip - INFO - Using "/snap/octoprint-pfs/56/usr/bin/python3 -m pip" as command to invoke pip

Additional information about your setup

OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
I manually selected all serial ports in the dropdown menu with baudrate at both Auto and 115200, which is what both printers use.
Latest versions of Octoprint and Ubuntu downloaded today. I already have a Pi 3B and Pi 4 connected to the two 3D printers (Anycubic Kossel and Creality Ender 5 Pro) that I can connect without issue. I just want to replaced them with a single SFF computer instead.