I have a curious problem with an old WRT54GL router, which I use as a WiFi access point on my LAN: Internet->ADSL modem->CentOS-7 computer->WRT54GL router The router has always had a slight problem of losing connection every so often - it used to be every couple of days, but recently it has become much more often. My cure was always to disconnect the power from the router for 10 seconds or so, and then re-connect it. Recently I discovered that running the following script on the CentOS computer seems to solve the problem (for a while) sudo systemctl restart dhcpd sudo systemctl restart network sudo systemctl restart shorewall (I suspect the first, dhcpd, is irrelevant.) Incidentally, I am able to ping laptops on the LAN (but not the other way round) even when the router is in its "bad" state. I wonder if anyone has had a similar experience, and can offer advice? I don't like to examine the internals of the router, in case it stops working altogether. I'm planning on getting another router (N protocol), so it is not a very serious matter - I'm just puzzled by it. - Timothy Murphy e-mail: gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin 2, Ireland
On 09/17/2014 07:49 PM, Timothy Murphy wrote:> My cure was always to disconnect the power from the router > for 10 seconds or so, and then re-connect it.I had a similar problem with the same router. I created a cronjob in the webinterface, that it was rebooted once a day. After that, the router was more stable. -- Gru?, Christian
On Wed, Sep 17, 2014 at 07:49:32PM +0200, Timothy Murphy wrote:> > I have a curious problem with an old WRT54GL router, > which I use as a WiFi access point on my LAN: > > Internet->ADSL modem->CentOS-7 computer->WRT54GL router > > The router has always had a slight problem > of losing connection every so often - > it used to be every couple of days, > but recently it has become much more often. > > My cure was always to disconnect the power from the router > for 10 seconds or so, and then re-connect it. > > Recently I discovered that running the following script > on the CentOS computer seems to solve the problem (for a while) > > sudo systemctl restart dhcpd > sudo systemctl restart network > sudo systemctl restart shorewall > > (I suspect the first, dhcpd, is irrelevant.) > > Incidentally, I am able to ping laptops on the LAN > (but not the other way round) > even when the router is in its "bad" state. > > I wonder if anyone has had a similar experience, > and can offer advice?I have to say that though I hear other people speak of their routers needing frequent rebooting, I've never had such a problem, though I have to admit that I've only ever owned two routers. The first of th em was a WRT54GL, and it ran fine. It would run for months, and only get rebooted after a power failure, or when changing things in its UI that required it reboot. I ran the factory firmware for a year or two then switched over to DD-WRT, and again never saw that kind of problem. Just wondering if you've ever done a firmware update? sometimes even the manufacturer will issue a bug fix firmware update, shocking as that may seem! :) After five or six years, it suddenly decided it didn't want to retain any of my settings across a reboot, and it was a huge pain to reset all the settings I had made, without notice, whenever it decided to drop them all. So I bought an ASUS RT-N16 and put the Linksys aside for a while. Subsequently, someone else I knew needed a router for guest network access, and I fired up the WRT54GL and reinstalled latest Linksys firmware and it has been running fine ever since (couple of years, more or less). Wish I could offer some actual help! :) -- ------------------------------------------------------------------------------- Under no circumstances will I ever purchase anything offered to me as the result of an unsolicited e-mail message. Nor will I forward chain letters, petitions, mass mailings, or virus warnings to large numbers of others. This is my contribution to the survival of the online community. --Roger Ebert, December, 1996 ----------------------------- The Boulder Pledge -----------------------------
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Can you describe from 0 what the network looks like? What are you using the WRT54GL for? as a AP? as a ROUTER? What device is the PPPOE connection initiator? Did you tried to use static IP address instead of dhcp? Can you access the device interface? What actually the DD-WRT gives you that the basic firmware do not?(a side question) Thanks, Eliezer On 09/17/2014 08:49 PM, Timothy Murphy wrote:> I have a curious problem with an old WRT54GL router, which I use as > a WiFi access point on my LAN: > > Internet->ADSL modem->CentOS-7 computer->WRT54GL router > > The router has always had a slight problem of losing connection > every so often - it used to be every couple of days, but recently > it has become much more often. > > My cure was always to disconnect the power from the router for 10 > seconds or so, and then re-connect it.-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUNERwAAoJENxnfXtQ8ZQU+w8IAIkPrug42il2YqFcXjpy8RlW oOpqSOss0PKMp9w6Q/PiFzxFbOVRuy6mrlhxPijkE+j6gyWF8VD4KdfsreYFyBZR 04fLnGsXeR2Ysv3+KL7jg+AUbNFGhd1vxw4Bmch3yJk8NRW5z9QztmmeejAV2Oqg lFcDpdH9qm7Y5Z4tuR05Rxrgy0BHDyQDVI+OUVoYEWow2f7X5NFyEkKUQvCdAvo8 xCq7C3OqPMRx8fyhamT/Xgpx4T1Cdf3/G4pqBAWkJX5JMXDNjmTiskhTCva0LqLr 4txwVPHJpBMqZyLFPk42Gp7OeuhR9Mt9KlPyhs/kdFLNaxJtcI7w80Z4Yc4U4HI=w+TI -----END PGP SIGNATURE-----