kenhwa wrote i hear in this forum got many Archer C5400 user facing same issue , warranty and change new device C5400 2 or 3 time still got same issue , i will cheap sell out this router then try...

I’m so stressed about this problem that I’m going to purchase another brand. I’m on my 3rd unit, it’s been over 2 months with no issues! But I’m going to sell it and I’ll never purchase another...

Yes, it is a problem that is happening to a lot of consumers who have purchased the Archer C5400 V2 Tri-band router. You'll need to contact support and get a RMA going.

Hi I see no one has responded yet. Do you still have an issue with your up/down speeds? I assume you tested your speed with different test sites, Beta Speed Test is the most accurate,(no flash...

Hardware Version : Archer c5400 v2.0 Firmware Version : 1.2.2 20170912 SUPPORT IS 24/7 Toll Free +1 866 225 8139 E-mail:support.usa@tp-link.com Service Time: 24 hours a day, 7 days a week

Been doing some research, here's a link to some important reading https: //www.ctrl.blog/entry/tplink-firmware-outdated-downloads A Quote from the link: " A support technician who shall remain...