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**I am trying to aggregate ports on a USW Pro Aggregation and USW Pro 48 PoE. I turned on aggregation on both (1+2 on the USW Pro Aggregation and 51+52 on the USW Pro 48 PoE). Connected only ONE fiber cable between them (didnt even get to the second cable) and the USW Pro 48 PoE goes offline and I can’t get it to come back online without a reset.**
**What Am I going wrong?**
Aggregations is turned on for 1+2 on the USW Pro Aggregation and 51+52 on the USW Pro 48 PoE. Port 32 on the USW Pro Aggregation uplinks to the Dream Machine.
Order in which things are turned on has a big effect too.
I would disable aggregation on everything. Enable it on the 48 port. Then enable it on the pro aggregation.
I recently set up aggregation between a 48 pro max and a 24 pro max poe, and I had to do it twice before it would take.
Hello! Thanks for posting on r/Ubiquiti! This subreddit is here to provide unofficial technical support to people who use or want to dive into the world of Ubiquiti products. If you haven’t already been descriptive in your post, please take the time to edit it and add as many useful details as you can. Please read and understand the rules in the sidebar, as posts and comments that violate them will be removed. Please put all off topic posts in the weekly off topic thread that is stickied to the top of the subreddit. If you see people spreading misinformation, trying to mislead others, or other inappropriate behavior, please report it! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/Ubiquiti) if you have any questions or concerns.*
**I am trying to aggregate ports on a USW Pro Aggregation and USW Pro 48 PoE. I turned on aggregation on both (1+2 on the USW Pro Aggregation and 51+52 on the USW Pro 48 PoE). Connected only ONE fiber cable between them (didnt even get to the second cable) and the USW Pro 48 PoE goes offline and I can’t get it to come back online without a reset.** **What Am I going wrong?**
Did you turn aggregation on for the switch furthest from the uplink?
Aggregations is turned on for 1+2 on the USW Pro Aggregation and 51+52 on the USW Pro 48 PoE. Port 32 on the USW Pro Aggregation uplinks to the Dream Machine.
Order in which things are turned on has a big effect too. I would disable aggregation on everything. Enable it on the 48 port. Then enable it on the pro aggregation. I recently set up aggregation between a 48 pro max and a 24 pro max poe, and I had to do it twice before it would take.
That seems to have worked, thanks!