@Clive_A Thank you very much for your contributions.

I run a restaurant and I use 4 access points. Which router would be best for providing access to a maximum of 100 users? ER605 (TL-R605) V2 or TP-Link Archer VR2100

@Somnus thanks a lot for your answer, i think you are right, it hasn't broken since i switched to 218/6090MHz which is more empty channel :) its working

I have been using one of them as an access point and the other as a client with 100 meters between them without any problems, for the last 1 month, it has started to break, 4 5 times a week, it comes...