diff --git a/Troubleshooting.md b/Troubleshooting.md
index f0dd1509..33d1f3df 100644
--- a/Troubleshooting.md
+++ b/Troubleshooting.md
@@ -55,6 +55,8 @@ If your device does not connect to your Wifi, its mostly causing by special char
 
 (Dont forget to change the CFG_HOLDER => [CFG_HOLDER explained](#cfg_holder-explained) ) 
 
+With some wifi routers (i.e. Linksys with DD-WRT), you may have conflicts with the 5GHz radio. Don't choose _"Mixed"_ option. Select _"AC/N-Mixed"_ instead. Moreover, you probably should disconnect 5GHz radio during the configuration process.
+
 ## WIFI Issues (FW > 5.12.x), ExpressIf Versions
 By releasing the firmware 5.12, the new ExpressIf library 2.4.0 is being used by default.