Disabling SIP ALG on TP Link Routers
1. Head over to 192.168.0.1. You will be presented with a login page.
2. Login details are as follows:
Password: admin or coolideas1
3. Once you have accessed the TP-Link Router page, click on the “Security” tab on the left panel.
4. Click on the disabled block on the SIP ALG option, and SAVE.