I'm still getting this error:
We apologize for the inconvenience, but we are unable to process your request at this time. Our engineers have been notified of this problem and will work to resolve it. Please note that using your browser's back button in AdWords can increase the likelihood of errors. If you think this was the cause of your error, please try again without using the back button.
And it just started last week.
I'm not a master of all browsers, but if you are using a recent version of IE, please try this tip:
1. Select 'Tools' from the MS IE browser menu.
2. Select 'Internet Options.'
3. Select the 'Privacy' tab.
4. Click the 'Edit' button.
5. Add 'google.com' to 'Address of Website' field.
6. Click 'Allow'.
7. Click 'OK'.
I hope that this'll help. I'd imagine there are equivalent settings in other browsers as well.
One other thing I've posted here before, which is worth trying:
Microsoft Internet Explorer (MS IE)
1. Select 'Tools' from the MS IE browser menu.
2. Select 'Internet Options.'
3. Select the 'Advanced' tab.
4. Under 'Security,' check both 'Use SSL 2.0' and 'Use SSL 3.0.'
Mozilla/Netscape Navigator
1. Select 'Edit' from the Navigator browser menu.
2. Select 'Preferences.'
3. Select the arrow next to 'Privacy/Security' in the side menu.
4. Select 'SSL' from the sub-menu.
5. Check both 'Enable SSL Version 2' and 'Enable SSL Version 3.'
AWA
No offense AWA but I don't think this is a browser problem. These are issues that seem to get worse on busy days. The entire AdWords site has been running extremely slow. Surely people at Google are aware of this.
Fortunately I can always log back in or try my request again and it works. More of a nuisance than anything.