Avast WEBforum

Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Brad125 on April 15, 2019, 10:44:28 PM

Title: Avast Firewall started blocking DHCP request from my laptop
Post by: Brad125 on April 15, 2019, 10:44:28 PM

Recently I started to have issues with my laptop connecting to a network (wired & wireless).  It would be connected but I was not getting an IP address from the DHCP server on the network (router at home & Window at client site).  I found that if I disable the Avast firewall for a period of time I can then get an IP.

Anyone else experiences this same issue recently?  Even after the last AV software update it still blocks DHCP.

Title: Re: Avast Firewall started blocking DHCP request from my laptop
Post by: bob3160 on April 15, 2019, 11:02:38 PM

Is the Avast firewall set to private? (Home and Office)
Default setting is public.

Title: Re: Avast Firewall started blocking DHCP request from my laptop
Post by: Brad125 on May 01, 2019, 03:56:50 AM

It seems to be happening no matter if the network is set to Private or Public.  I don't see anything blocked in the logs but DHCP fails every time the lease expires.

Title: Re: Avast Firewall started blocking DHCP request from my laptop
Post by: Asyn on May 01, 2019, 07:32:55 AM

Repair Avast:
1. Avast GUI -> Settings -> Troubleshooting
2. Click on 'REPAIR APP'.
3. Follow instructions.
4. Reboot.