Hi,

 

The 5GHz led off means that the extender failed to connect  to the main router's 5GHz.

 

Did you try to change another web browser or devices to access the web portal?

 

Meanwhile, for the slow speed, it is suggested to do some troubleshooting to narrow down the issue first. Below is the instruction:

https://www.tp-link.com/en/support/faq/2232/

 

For the firmware, you can downgrade it, the procedures are the same as upgrading.

 

Good day.

denken wrote

Hello everyone! My name's Philipp and I'm all new to this forum.

 

I've got a problem with my Re355 WLAN range extender. I received it with firmware version RE355(EU)_V1_151117. A few months ago I updated to version RE355(EU)_V1_180204. So far everything worked during the update process. But somehow I feel that the extender's web portal now has been working just very slow and the 5 Ghz led indication is not on anymore. Is this a known issue with this firmware and being fixed or am I the only one facing this?

 

Furthermore, is there a possibility to downgrade to the initial version? Because on that version, it was working well. The only reason I updated was because of the mentioned optimizations in the changelog. 

 

I appreciate your help and support.

 

Philipp

 

Hi, Could you please paste a screenshot on the error page? Which country are you located? You need to download the correct firmware from the country where you bought this extender so that downgrade will be successfully done. And when you downgrade, please make sure you connect the computer to the extender by wired connection. If possible, please try to use a different web browser to downgrade and see what happens. By the way, for the 5G LED issue, it is possible that the main router 5G signal is weak so extender has problem to connect to it. You may relocate the extender and keep it closer to your router and check it is an issue. And please try to use a fixed channel on 5G like 36, 44 or 48. About how to change channel on your router 5G, please try to contact with router support and they will help you to do that if you are not very sure how to do that. Any update, can let us know. Good day!

Hi,

 

Please try to downgrade to this firmware first and see if you still have this issue:

http://support.tp-link.com/f/0045bff74c/?dl=1

 

Any update, please let us know.

 

Good day!

Hi Philipp,

 

Cause the latest firmware fixed the WPA2 Security (KRACKs) Vulnerability, I confirmed with our engineers, there is no way to downgrade it to the original firmware yet.

 

While per I said before, we can do some troubleshooting regarding to the current problem.

 

For the slow portal issue, it is suggested to change another web browser or devices to do a comparison analysis.

 

For the 5ghz, please hard reset the extender and reconfigure it to give it a go.

 

Below is the instruction to set it up. 

https://www.tp-link.com/en/support/download/re355/#video or https://www.tp-link.com/en/support/faq/930/

Note: Please use the home wifi password to configure it.

 

May it work, and have a nice day. 

 

 

Hi Philipp,

 

How did you login to the web portal of the extender? Could you please shot a short video and send it to us.

 

Besides, I'm afraid that there is no way to downgrade the firmware. And the web UI won't affect the performance of extender, if you do mind, you can use the Tether app to manage it. 

https://www.tp-link.com/en/support/download/re355/#Apps

 

May it help and have a nice day. 

 

denken wrote

Hello Kevin

 

Thank you for your reply. 

 

This is bad news with the downgrade. :( IS there no possibilty to make an excuse?

 

The slow portal speed can also be seen on any other internet browser. I'm sure it is caused by the actual firmware.

 

I've reseted the repeaters many, many times. It has not been of any help yet.

 

Greets

 

Philipp