-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Then now I am a bit confused. You wrote that the router has a slight problem. The router can be the CentOS machine or the WRT54GL, choose please If you can access the WRT54GL device web page the issue is in another level. Where do you have the issue?? - - on machines behind the WRT54GL? - - on the CentOS server? What ping has to say about the status of the connection between the WIFI clients and the server? and the WRT54GL? (I was reading the first post and didn't got it yet) Since the three dhcpd\network\shorewall do resolve the issues it can be more then one problem. You can get the output of: iptables-save ip link ip addr dmesg I would also look at the basic system logs to see if there are any hints about the issue. I had a similar issue with a CentOS 6 not long ago and the NIC was going up and down. When I replaced to newer kernel it got fixed. (tested couple times over a very long period) What nic are you using there? Is there any switch over there between the WRT54GL and the Server? Thanks, Eliezer On 10/08/2014 02:19 AM, Timothy Murphy wrote: > Eliezer Croitoru wrote: > >> Can you describe from 0 what the network looks like? What are you >> using the WRT54GL for? as a AP? as a ROUTER? > > As an Access Point: > > Internet -> Modem -> CentOS-7 server -> WRT54GL > >> Did you tried to use static IP address instead of dhcp? > > Dhcp is running on the server, not the WRT56GL. > >> Can you access the device interface? > > I'm not quite sure what you mean by "the device interface". I can > access the WRT54GL's web-page, and modify it if I wish. > >> What actually the DD-WRT gives you that the basic firmware do >> not?(a side question) > > I've no idea; the router was already running dd-wrt when I acquired > it. > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUNHq+AAoJENxnfXtQ8ZQUcHQH/0hwB2aNltJciuxhUn9JdUC9 qYkzGp223aRFybcjBI+QP6qYjXEbMG0cueOsyEOVsCOzHRLjSMpLObFLrAcAfxal 2wJM2QBU0rImMYiV+1mGsMPpcKqujkmRoq1jYRVbOTmg7lEAN+8IOLYra+zbEOAa SwcgNudxkfoMknzPDPL/K+Wh0vH3Qut3hTNxxabWPdkCL6AZMuVOzcozCIXmqFMn FrbLZdVXL7rag8BurB2e2ynwHObxCr40V+G/ksnbY13HcrtjTeY0yfn5Xw3+smRi rgLfJMe56RGuSGXEGWgbtNyGijRy2SkvPNzWgHwS2N2iwEGfiw3A/kdDSWpT0Ao= =JYMB -----END PGP SIGNATURE-----