There have been quite a few complaints that Outlook 2007 (running in Windows Vista) is not sending out emails properly when paired with certain Linksys routers. I actually experienced this recently – what a mess. Thought I would share a quick fix and save some of you from hours of hair pulling.
For one reason or another, my Linksys WRT54GL wireless-G router began intermittently dropping DNS connections (184.108.40.206) even though the default gateway (192.168.1.1) respond normally to pings. In short, I can see and access other computers in the local area network, but there is no internet connection. After 2 weeks of tech support calls and more than 4 hours of total support time, the effort finally paid off. Linksys is sending a replacement unit.
During each call, tech support suggested changing MTU settings, disabling Block Anonymous Internet Requests, hard resetting the router, re-flashing the firmware, power cycling the modem & router, running static IP & DNS settings on each computer, adjusting various wireless settings, etc…. You name it, we tried it. Of course, after each tedious call, the router would work fine. After some usage, the DNS drop would return. It got to the point that every 24 hours, the router needed a hard reset and a full re-setup to work properly again.
The WRT54GL has a 3 year warranty so I chose the cross shipment method for replacement. Cross shipment is where Linksys sends you a replacement unit first. After you receive the replacement, you simply send back the defective unit as opposed to having to send in your unit first before Linksys sends you another. The only difference is when you choose the cross shipment method, Linksys will put a hold on your credit card for the retail amount of the unit that they have sent you. Once they receive the defective unit, the credit card hold will be cancelled. Fair enough. I went through the RMA process and am awaiting a replacement unit.
After dusting off and setting up my old Linksys wireless-B BEFW11S4 router, all was well again… except for Outlook not being able to send out any emails! After some quick research, it turns out that the BEFW11S4 has been well documented to have email send issues. Two must do’s for this router to unblock Outlook sending emails are:
- 1. Set Max MTU to 1492 (rather than the disabled default of 1500)
- TriggerPort Range: 25 ~ 25
- IncomingPort Range: 113 ~ 113
After these settings, both Outlook 2003 (running under Windows XP) & Outlook 2007 (running under Windows Vista) were still not able to send emails out. I had to further tweak each computer manually to send out emails via Outlook. Here is what I had to do in the time being until the new replacement router arrives.
Under each Outlook email account, I removed my normal SMTP setting of smtp.domain.com (your SMTP will be different and is based on your own domain name). It was replaced with an SMTP setting from my ISP – in this case, my cable provider. This solved the XP system but not the Vista system. For Outlook 2007 under Windows Vista, when using your ISP’s SMTP, an additional step of disabling authentication is required.
Under Tools >> Account Settings >> Account (Double clicking on each email account) >> More Settings >> Outgoing Server Tab, uncheck “My outgoing server (SMTP) requires authentication” like so:
Voila! Emails are going out again.
Funny enough, after switching SMTP settings, I disabled the above Max MTU settings and Port Triggering on the BEFW11S4 router and emails are still going out. Go figure!
Not sure why there are so many issues (& resolutions) in the Linksys forums regarding email send issues with certain Linksys routers but there you go. Hope this quick fix can help others with your Outlook email send problems.
In the meantime, I hope Purolator gets here quick with that replacement unit! I miss my faster wireless transfer speeds and stronger WPA encryption!
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