Archer AX55 - unstable connections after upgrade
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Router had been working with no issues for months. On Friday, 17-Novembet morning it automatically upgrades the firmware to version 1.2.5 Build 20231025 rel.50143. Since then, it has tons of issues. It doesn't connect. The connections keep dropping. It connects to one device and then fails to connect to other.
I've done rebooting, restarting, IP clearing, restarting multiple times. This upgrade messed this whole thing up. Called TPLink support multiples times but no use.
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If you see a 169.254.x.x address, it means that the DHCP server is not reachable.
Why is the DHCP server not reachable? Because the most recent firmware update broke something.
What did it break? Well, that seems to be what everyone is trying to figure out now.
In the meantime, the best we can do is rollback the firmware update, or move forward to the beta firmware update.
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@minion-me new firmware update available just now. Version 1.2.6, dated 11/30/2023. Has anyone tried it already? It mentioned "Fixed a bug of wireless devices disconnecting in specific environments." 
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I couldn't sleep this morning and was about to downgrade my FW and saw that it had posted. I upgraded about 4:30am PST this morning and so far so good. We'll see as the day goes by. I'm not a power user or anything so take that for what it is.
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Just completed my firmware update to 1.2.6 on 2 Dec 23 at 0800 CDT. We'll see how it goes over the next 48 hours. Anyone else have updates on their status..?
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I upgraded to Firmware Version: 1.2.6 Build 20231130 rel.36135(5553) last night.
So far, everything seems stable again, but I will report back in 48 hours. Thank you!
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@Yellowjacket @Smakmauz @ttchief
Thank you very much for the feedback about the new firmware 1.2.6 Build 20231130, you could also monitor for longer time and let us know if there is any disconnecting issue.
@DanPet @AdamPfromMN @Ping808 @Mikeyx13
Hi, we have released a new firmware 1.2.6 Build 20231130 to solve the disconnecting issue, please upgrade the firmware via the online upgrade in Web GUI or Tether App, or you could also download the new firmware from the official website:
Firmware Download for Archer AX55 V1
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Just over 48 hours since install of 1.2.6 ...no problems encountered. Saw a very simialr issue had occurred back in Apr-May with 1.2.2 just before I bought the AX55. Think I'll leave the auto-update feature off... Thanks for your replies confirming these issues.
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I too have passed the 48 hour mark and all devices have remained connected.
So far, things are looking good with the new firmware version! Thanks... Shelly
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