VoIP GuidesContact us
← Back

Grandstream ATA won't register

Fix an FXS port that stays unregistered.

Grandstream device

One wrong detail stops registration.

Steps

  1. Re-enter the password and user ID on the FXS Port page.
  2. Check the SIP server address.On HT81x, check it on the Profile page and that the port uses the right Profile ID.
  3. Click Save and Apply.
  4. Turn off SIP ALG on your router if it still fails.
More Grandstream guides

Grandstream ATA has no dial tone

Fix silence when you pick up the phone.

TroubleshootingHT80x ATA series, HT81x ATA series

Grandstream account not registered

Fix a line that won't register.

TroubleshootingAll models

Locked out of the Grandstream web page

Get back in when the password fails.

TroubleshootingAll models

No audio on a Grandstream phone

Fix calls with missing sound.

TroubleshootingAll models

Grandstream BLF keys not lighting

Fix busy lamp keys that don't work.

TroubleshootingAll models

Grandstream phone stuck starting up

Fix a phone that never reaches the home screen.

TroubleshootingAll models

See all Grandstream guides